Since i cannot lift the pen, i added "6" after "IX" Assuming it would give me 1x6.

@tahaaiyaaz7962

3 жыл бұрын

Wow this one works too

@thepatientinvestor

3 жыл бұрын

me too I did the same

@hydrakiller9653

2 жыл бұрын

In last reddil we can applie a straight line on equal to and its becam in equal anf ans became right

@AvinashKumar-uz9fq

2 жыл бұрын

Me too

@florishijink865

2 жыл бұрын

i just wrote the number 6 seperately

For "IX" question, I find another solution. You just fold the paper in such a way that cut IX in half horizontally, then you rotate the paper around and you'll get "VI" which is six, without even using the pen in the first place.

@aadilgoyal9286

2 жыл бұрын

if you do that, then you will get "٨I", which is not "VI"

@Kairikey

2 жыл бұрын

Not that side, the other side. when you fold it, you'll get "IV" on one side and "I^" on the other side. If you rotate the "I^" upside down, it became "VI".

@dbugged

2 жыл бұрын

@@Kairikey I thought the same thing... Our answer is more creative :)

@aciarduce

2 жыл бұрын

Yeah I was going to say just use the pen to cross out the top of the IX and then rotated to find a smaller VI.

@mrsocko316

2 жыл бұрын

to be perfectly honest, this was the solution I came up with because I misread the question thinking we were asked to do it without lifting the pen PERIOD.

bonus riddle 1: i solved it by scribbling out the top half of the IX and turning the paper 180 degrees giving you VI, or 6.

@puliverius

3 жыл бұрын

I just wanted to fold the paper and rotate. This works even without the pen :)

@redstonerg.8616

3 жыл бұрын

Glad someone else thinks the same way !

@johnweber4504

3 жыл бұрын

I see I’m not the only one with a slightly off thought process

@quentinosaurus7966

3 жыл бұрын

Same y'all

@darkenway493

3 жыл бұрын

Same

Bonus 2: Just make an unequal by striking the equal sign and the equation is correct (Doesn't make much sense, but it is correct - 101010 is not equal 9.5)

@sebastiantschatordai

2 жыл бұрын

You mean ≠? That's what I came up with.

@vemuri12341

2 жыл бұрын

🙏🏼🙏🏼🙏🏼

@velocitycode

2 жыл бұрын

I found that too

@pedrosimoes4751

2 жыл бұрын

That is not an equation

@svccscvv6214

2 жыл бұрын

@@pedrosimoes4751 what makes a mathematical expression an equation? Is it the truth of the statement or the equality sign?

9:50 simply draw "/" over the "=" to make it not equal

@michaelhyam3636

4 жыл бұрын

darknight came here for this. Correct.

@wagnergauer9133

4 жыл бұрын

Exactly what i was gonna comment

@allmybasketsinoneegg

4 жыл бұрын

Also my initial thought.

@sharatkumaragrawal4061

4 жыл бұрын

Thats not a straight line its a slanting line

@ravirajshelar250

4 жыл бұрын

He said equation, not an inequality.Read the question properly.

two options for the second bonus riddle: put a slash through the equal sign to make it an inequality, or turn the second 1 into a T for "10 to 10," also known as 9:50 (or 9.50)

@saddamsheikh207

2 жыл бұрын

nice😂

@badrinathgaming4626

2 жыл бұрын

We are supposed to place one straight line that's all... No turns or movements allowed

@saddamsheikh207

2 жыл бұрын

@@badrinathgaming4626 thats what he meant bruh putting slash over the middle 1 will make it T

@badrinathgaming4626

2 жыл бұрын

@@saddamsheikh207 Yes thanks for informing

@dbugged

2 жыл бұрын

clever!

Riddle 7: The total volume of liquid is 119 L. That leaves a remainder of 2 when divided by 3. The volume of milk must be divisible by 3. So the barrel containing water is the one that leaves a remainder of 2 when divided by 3. That quickly shows you that the 20 L barrel is the one containing water.

@mameabera5852

2 жыл бұрын

Brilliant

@johannbach3342

2 жыл бұрын

There is an easier way to do this in your head - all numbers divisible by three have digits that add up to a multiple of three. When you add up all the digits on the barrels you get 38, which is 2 higher than 36 which is divisible by 3, so as the digits of 20 add up to 2, the 20l barrel must contain the water

@younglowski1

2 жыл бұрын

6 barrels. 1 contains water, leaving 5 w/milk. The total liters of milk purchased for customer 1 must be double for customer 2. Customer 1 bought 33L (18+15), so customer 2 bought 66 (31+19+16). Leaving the water in the barrel w/ 20L...

@agfd5659

2 жыл бұрын

I don't understand why the number of liters of milk needs to be divisible by 3. 1/3 l is also a valid measurement of volume. There was no restriction about whole numbers in the problem statement.

@RexxSchneider

2 жыл бұрын

@@agfd5659 The number of litres of milk needs to be divisible by 3 because customer 1 bought twice as much milk as customer 2, so the total amount of milk must be a multiple of 3. There _was_ an implicit restriction about whole numbers because each barrel was specified as containing a whole number of litres of liquid. It's true that 1/3 is a valid measurement of volume, but 1/3 of a barrel is not a sensible container for any liquid. That's why we're working with a whole number of barrels and hence whole numbers of litres.

With the final problem, just have a really thick line covering the problem. It automatically works

Add a straight line on second 1st digit of second 10 i.e, on 1 now it becomes 10 T0 10 = 9:50 (Showing time)

@jatinbalani1349

4 жыл бұрын

???

@manirajchakinarapu2166

4 жыл бұрын

@jatin balani it's time

@jatinbalani1349

4 жыл бұрын

@@manirajchakinarapu2166 oooo got it thanks

@civilizedmonster

4 жыл бұрын

Just change the equal to sign (=) to not-equal to sign...it works..

@samarmohapatra9643

4 жыл бұрын

Strike the equals sign to make it not equal to

9:10 i can do that without using a pen Just fold the paper so that it divides IX equally ( like this -IX- ) and flip the book upside down

@AaryanShah-ef3wv

4 жыл бұрын

Seriously good 👌👍

@svavarkjarrval8757

4 жыл бұрын

Or use a pen to scratch over the top half and then turn the paper round.

@Polpaccio

4 жыл бұрын

In some countries the decimal digit are separated by a "," not by the dot.

@thundermethun9427

4 жыл бұрын

I did the same at first as well

@webflyer035

4 жыл бұрын

Thats what I was about to comment... Except I'm gonna flip it from the side of tape...

The 5th riddle has another way to solve it: The speeds say that for every 10 meters Alice runs, Bob runs 9. Alice has to run 110 meters, so divide that by her 10 meters, we get 11. We now have to multiply Bob’s 9 by 11, which means he runs 99 meters in the time it takes Alice to run 110. It’ll be close at that finish line.

@jonah4932

2 жыл бұрын

That is how I got the correct answer as well!

@tastywallet7992

2 жыл бұрын

I solved it using a roundabout way. I calculated the average number of meters based on time. Although the question did not tell me how long each runner took, I made up my own! I divided each by 100. So, that means Alice is running 1 Meter per time and Bob is running 0.9 Meters per time. With this in mind, I calculated how long each runner took to finish the race. The lower number took less time, meaning they won. I did this by dividing the total distance by their speed. Alice was given an extra 10 Meters to win. Thus, she took 110 amount of time to finish (110 / 1). Bob took 111.111111... amount of time (100 / 0.9). Alice took less time. Therefore, she wins!

@dbugged

2 жыл бұрын

@@tastywallet7992 I thought similar. If Alice runs 10m/s and Bob runs 9m/s, Alice runs 110 in 11 sec and Bob runs 100 in 11.1 sec. Therefore, Alice wins.

@barrybrideaux2919

2 жыл бұрын

exactly simple 100 = 90 is 10=9 so 110 =99 Alice wins

@aizentaicho82

2 жыл бұрын

I simplified it. Figuring Alice would win unless she started 20 meters behind. If she was 10 meters ahead in the first race, then even if she started 10 meters behind, they would tie at 90 meters with 10 meters to go and she is still faster, so she would still win.

8:24 For the barrels, you can take a shortcut: 15+19+18+16+20+31=119 Which divided by 3 gives a remainder of 2 (117+2). That means that means that you only have to look at the barrel which is also yielding a remainder of 3. 15 and 18 have a remainder of 0 19 is 18+1 16 is 15+1 31 is 30+1 20 is 18+2 So, if we remove the barrel 20, the new sum will be a multiple of 3.

@ChaosAngel667

2 жыл бұрын

easier shortcut. see only 3 residuals and you get 0 1 0 1 2 1 total is 5 equals 2 in residuals.

@BramLastname

2 жыл бұрын

While this is the intended solution, The way it is set up you cannot know which barrel it is, Unless the 31 barrel is the one with water, As the first one can buy 5L and the second one 10L And then all you know is that 31L barrel is most likely 100% full.

@prateeksinghal3436

Жыл бұрын

even shorter, add all digits (1+5+1+9+1+8+.........) = 38, now greatest number disible by 3 is 36 so find a barrel whose digits add up to 2, which is 20.

@hanss4549

8 ай бұрын

it all assumes milk is only sold in integer number of litres.

Regarding bonus riddle: simple folding the paper in half and viewing it upside down makes it V| : which is six in roman

@schwarzerritter5724

4 жыл бұрын

It is glued to the table.

@greedisgood902

3 жыл бұрын

Fold also the table then

@joysen.developer

3 жыл бұрын

@@greedisgood902 I also thought that

@verlax8956

2 жыл бұрын

@@greedisgood902 “It is glued to the house” Fold the flippin house then.

@RubyPiec

2 жыл бұрын

@@verlax8956 it is taped to your computer screen

Added a line through the equals sign to make it "not equal."

I know this isn't the way you probably WANT it, but for the final question I would put a straight diagonal line through the equal sign. You would end up with the "Not Equal Sign", signifying that these 2 sides of the equation are not equal, and then equation itself becomes true.

@matthewbrown5228

2 жыл бұрын

Pretty sure that is exactly the way to resolve it. The theme of the other riddles suggests that the final answer is not to correct the solutions to make them equal each other. It is a theme of unconventional conclusions. The glasses and coins, for example. Unconventional, but technically true. This was phrased specifically with the original statement that it is an unequal equation. The question is not to make it equal, but to make it correct, and only with a straight line. A diagonal line making the equals sign unequal would make the question correct in an unconventional way, matching the other riddles.

@derrickrr5516

2 жыл бұрын

That’s how I solved it. It’s correct. I guess there could be another solution but I gave up searching for it after a few minutes.

For the logic in the "Odd number of coins in 3 glasses" to work you would have to assume Glass A and Glass B are combined into one entity that would represent and odd amount of coins. With that in mind... it is no longer 3 glasses OR you have to admit Glass A still has an even amount while also holding Glass B, which DOES have an odd amount. Either way, you still have 2 separate glasses containing odd amounts with a 3rd glass containing an even amount. Putting Glass B into Glass A doesn't leave you with the results you asked for.

@RtistiqSkubie

2 жыл бұрын

THANK YOU! That solution was so stupid

@djimenez4194

2 жыл бұрын

Thought same thing !!!

@Akira-jd2zr

2 жыл бұрын

I agree. Not a good solution...

@donwanna3906

2 жыл бұрын

Not the way he did it, no. You put glass A into glass B, and then you put 5 coins in it. Put the other 5 coins in glass C. Now Glass A and Glass B each have (the same) 5 coins in them, and glass C has its own 5 coins.

@Postoronniy

2 жыл бұрын

This strays from math into philosophy of what constitutes a glass / glass containment space. You can stretch that even further and put any number of coins into any glass, as long as it is at least one. Then you can truthfully claim that each glass does contain an odd number of coins - the question did not specify that the _total_ amount of coins in the glass should be odd.

#4: Take the top match. Bend it in the middle to make a right angle. Put it in the bottom-left corner to make a square when combined with the bottom and left matches.

@cherrycoke1159

2 жыл бұрын

Bend all of the matches and make a swastika

@dynamicworlds1

2 жыл бұрын

Good one. Also, take any match. Strike it. Use the flame or ash to draw a square. That brings us to 4 possible solutions.

Bonus was goofy. I just wrote a 6. Miss the Perfect Square "4". Got the rest. Thx for the fun.

@davidoickle1778

4 ай бұрын

4 is a perfect square (2 x 2 = 4 ) grade 9 algebra.

For turning IX into 3 less than 9. Write 6 after the "IX" so it becomes an equation. 1X6=6, being 3 less than 9.

@TheAaeeeee

4 жыл бұрын

i can do it with out even touching the pen

@michaelbenninghoven-sparks3060

4 жыл бұрын

There's quite a few ways to solve this one. I "scratched out" the top half of th I and X. Then you turn the paper around and it leaves VI which is the Roman numeral for 6.

@rohitkasturkar6575

3 жыл бұрын

You can't lift the pen, for this you need to lift the pen

another trick for last riddle. The total of all the barrels is 119, this is 2 mod 3. Thus to make the total milk divisible by 3 the single barrel of water must be 2 mod 3. The only barrel that is 2 mod 3 is 20. Thus the 20 barrel is the water.

@LOGICALLYYOURS

3 жыл бұрын

Thanks Daniel for your valuable comment. Your approach is really optimal.

@ihti20

3 жыл бұрын

We should also specify that customer must buy only full barrels. I did pretty much the same, but I considered remainders being 0,0,1,1,1,2. The only combination that yields divisibility is 0,0,1,1,1.

@cjrada82

3 жыл бұрын

Yep, this is it

@shivamaggarwal779

3 жыл бұрын

@@LOGICALLYYOURSbonus riddle 1 is kind of stupid because for writing six we have to lift pen, so they didn't researched properly, as there answer is wrong because we had to lift pen,

@allenjr4978

3 жыл бұрын

What do u mean by 2 mod 3?

An even better riddle is how Alice became a "he." (Answer: His last name was Cooper.)

@justinrigden6530

4 жыл бұрын

Bob Ezrin was Alice Cooper's producer.

@ondrakucera4532

4 жыл бұрын

Like Sheldon Cooper from TBBT. He's also a man

@anuragsrivastava6635

4 жыл бұрын

Because she went farm and chenged her gender.🙄

@b-dog3207

4 жыл бұрын

What

@mysticalgaming8023

3 жыл бұрын

Hahahahah nice one

Riddle 3:- What an out of the "Glass" solution 😜

In Riddle 5, the assumption is that a 100m racer can also win a 2000m race! When you increase the distance, there could be other factors, maybe Alice has stamina only good for a 100m race, and when asked to run for another 10m, she lags behind to her competitor.

@williamharlan1714

2 жыл бұрын

This would be true in a fair race but Alice was taking steroids

@peytonmac1131

2 жыл бұрын

Alice was also a horse, and Bob gave up and just took a bus.

Bonus riddle : I think we can write 6 after the X so that it will be 1×6 = 6 which is the correct answer

For the last riddle, I would turn the paper and cut away a part of the X, making VI

Add the line on the equal to sign, so the equation will be 10 10 10 is not = 9.50

@FurtherReview

4 жыл бұрын

Yep, that was my solution, too! He didn't say it was a vertical or horizontal line, just a straight line. The slash mark across the equal sign qualifies as a straight line.

@krishnamoorthi9486

4 жыл бұрын

That's what I do for every matchstick problem 😂😂😂

@tanujgarg792

4 жыл бұрын

Lets call this room a backbenchers club.. Count me in

@baybee6379

3 жыл бұрын

Then it wouldn't be an equation, it becomes an inequality

I figured he wanted to place one cup in another but I think that is technically wrong since there are still three cups and one of them has an even number of coins. Just because it jumped into another cup doesn’t make the cup non existent.

@teamtunell

2 жыл бұрын

Of course, the question isn't strict. A cup with 4 coins also contains 3 coins. Like the riddle asking how many months have 28 days.

@Cmeigs017

2 жыл бұрын

I thought the same. Couldn’t we just distribute a value of 0 to one of the cups? You can then put any odd combination of coins into the remaining 2 cups without “cheating”.

@meandmyself1600

2 жыл бұрын

@@Cmeigs017 0 is considered even, not odd. (Putting 0 was my first guess too)

@deathwrow9652

2 жыл бұрын

If one cup contains another cup, it also contains the contents of that cup. So if it has 4 originally, and the cup added has 3, then the cup holding another cup now has 7, whereas the top cup still has 3.

@SabertoothDeathmouse

2 жыл бұрын

You have to put the even number (4) of coins in the lower/outer cup, and the odd (3)in the inner cup. Since the coins in the inner cup are also now in the lower/outer cup, the cup now has an odd number (7) but the inner still only has 3. If you put the odd on bottom, the lower/outer would have 7, but the inner would still only have 4. Does that make more sense?

I got the barrels one right but my way of thinking was entirely different lmao

Bonus Riddle 2: drawing a line on top of the middle | makes the equation: 10 TO 10 = 9.50 So the equation is telling you the time. Also because these comments frustrated me after reading 50+ of them: Any (good or decent) riddles NEVER have the answer to "just make it not equals to".

@stevengu1253

3 жыл бұрын

Yes, but this is an ambiguity of the problem and a perfectly valid solution because the problem was not clear on what it wants.

@davidjones-vx9ju

3 жыл бұрын

time is not expressed that way

@Salokin92

3 жыл бұрын

@@davidjones-vx9ju well thats why the riddle is better with matchsticks because you rip off the tip to make 9:50 and add the dot. Either way the "is not equals to" hurr durr would render ALL equation puzzles absolutely meaningless.

There is another way to answer the "coins" question at the beginning. The main premise is to ask how many coins you have. The part about saying "only one statement is true" is a clue. If #1 is true without the others being stated, you cannot definitively say how many you have. It would be the same with #3 if looked at by itself; you cannot definitively say how many coins exist. #2 is almost the same way until shown with the other 2 statements and given the clue; there's a definitive choice: 0. If #2 is true, then #1 is false. As such, you can give a definite answer to the basic question. In this way, the clue is merely an indicator to say how many. Standing alone, #2 doesn't have an infinite number of answers; it only has 4. As such, you can guess that it's the true statement without comparing it to the other two.

For the milk and water barrels riddle, there was no need to add up each combination if you were too lazy to do so. Just look at the remainders when divided by 3. I was too lazy to add them.

@ItsCalilum

2 жыл бұрын

I saw that 15 + 16 didn't work as the smaller purchase so I tried 15 + 18

@hieronymos_lo

2 жыл бұрын

I did the same too. Totally 119L from all six barrels and the remainder is 3, so I look for the barrel in which the volume has a remainder of 2 as well.

@aniket0902

2 жыл бұрын

Lol I just removed 15 and 18 coz they were already divisible by 3, then added rest to confirm

@eddyary3679

2 жыл бұрын

I added all six barrels to 119 in my head, then subtracted each number one by one until a remainder was divisible by 3. Tried 19 first and knew that 100/3 wasnt a whole number, thought of 99 and saw the number 20 next. 2 trial and errors and got it.

@nogudrhymez

2 жыл бұрын

I solved this one by calling "time out", fast forwarding the video a little bit to get the answer, then rewinding it again and declaring "okay GO". It was pretty much a sure win for me after that.

5:02 mathematical proof: lets say the race took 10 seconds Alice walks 100/10=10m/s Bob walks 90/10=9m/s Alice having to walk 110m will take 11 seconds Bob having to walk 100m will take 100/9 (11.111) seconds Alice still wins.

@urbankoistinen5688

2 жыл бұрын

You don't know who wins, since running is typically much more complex than constant speed.

@benediktcz

2 жыл бұрын

you dont need to assume any time: bob run only 9/10 of what alice does, so when she runs 110m he does only 99m

@TommonSensePro

Жыл бұрын

Bob is trolling Alice. He is running slower than normal. Since Alice will be more tired to run farther and Bob is actually faster than what he was in the first race, he wins.

Answer for last bonus result according to me is just put a straight line through the equals to sign that is to cut the equals to sign in the equation

For the coin puzzle: put 5 in 1st glass, 5 in 2nd glass, none in third. Then tell the person giving test "WOW, no coins in the last glass, that sure sounds *odd* to me, huh?"

@MrJinglejanglejingle

2 жыл бұрын

I went with 9 in the 1st Glass, 1 in the 2nd Glass, and None in the 3rd.

@TangoNevada

2 жыл бұрын

@@MrJinglejanglejingle I agree, but it states there needs to be coins in each glass. You could just break the 3rd glass and problem solved. Or, Put two glasses to lip, tilted on their side with one coin straddling two glasses. Now you have 2 glasses with a half coin in each.

4:20 I have a 3rd solution: Take (move) 1 matchstick, break it in to 4 pieces and make a square. Question doesn't say "don't break the sticks".

@aadisway2795

2 жыл бұрын

Question also doesn't say that you can break it.. You can just move it.. Nothing more than tha..

For question 7, just add the total of all the barrels (119) and subtraction each barrel.If the remaining quantity is divisible by 3 then the subtracted barrel is the milk. If you minus 119-20=99 , 99 is divisible by 3 hence the answer is 20.

You missed th out side of the box version on barrel riddle: Just open barrel and check if it's water, no need to do math there.

@theredraze

2 жыл бұрын

Even easier way. 5 barrels were sold with only the last one barrel remaining that contains water.

Your riddles were interesting, i was only able to solve 2 of them

To subtract 3 from IX you can also just turn the paper by 180 degrees and fold it horizontally, so it becomes VI, without even using the pen

9:50 Coincidentally 9.50 can mean 9h50m (just like the time stamp) so I0 I0 I0 will be I0 T0 I0 (ten to ten) which is 9h50

@marvinkitfox3386

3 жыл бұрын

9.50 is NOT ten minutes before ten o clock. 9:50 is, but 9.5 is not

@aloysiusvo318

3 жыл бұрын

@@marvinkitfox3386 you gotta think out of the box, if they just give you 9:50 instead of 9.50 how is that even a riddle?

@MrOverdrive500

3 жыл бұрын

@@marvinkitfox3386 It is in the U.K.

@marvinkitfox3386

3 жыл бұрын

@@MrOverdrive500 Nope. In UK, you could have "9.50 am" or "9.50pm" or "9:50" or "21:50"... but never "9.50" with no further info.

Bonus #2 you can also just change the "equals" to "does not equal" symbol by drawing an angled line through it.

@Krauzer33

3 жыл бұрын

It's not equation though...

6:05 Plot twist: first match, Bob is only warming up, while Alice was exhausted So the winner is Bob

Bob has 90% of the speed of Alice. So by the time that Alice runs 110 meters, Bob will have run 99 because 99 is 90% of 110. Bob loses by one meter.

@MxCAT7

4 жыл бұрын

Must feel pretty messed up...

@Brayan-nh4gx

4 жыл бұрын

Alice is not a machine. She ran an extra 10 m so she would probably get more tired and slow her pace down

@mr.knight8967

3 жыл бұрын

Nice

@sizenineelm

2 жыл бұрын

@@mr.knight8967 It also doesn't say they ran at constant speed. Alice might only be able to run 105m, initially fast before stopping, while Bob can run steadily, so Bob wins.

Riddle 2 is a sequence of numbers combined with their reflections. Any finite sequence of numbers can be generated by a polynomial rule, i.e. a pattern. This means that the last picture can be any number combined with its reflection. Riddle 4: partially break one of the matches so that its bottom faces up. The bottom is shaped like a perfect square. Riddle 5: we can only conclude that Alice's *average* speed is greater than Bob's, in the amount of time it takes Alice to run 100m. It is possible for either Alice *or* Bob to win the race if Alice starts 10m behind. This can be visualized graphically. Bonus riddle 2: define a notation in which three numbers, a, b, and c, are written next to each other and a giant curly brace is drawn under them. Then define that expression to equal 9.50, or anything that makes it equal 9.50 using 10, 10, and 10. Then the solution is to draw a curly brace below the three 10s.

@phrog9186

2 жыл бұрын

For bonus riddle 2, I just drew a line through the equal sign. So this is what I had envisioned in my head: 10 10 10 ≠ 9.50

@BramLastname

2 жыл бұрын

@@phrog9186 Because of the way the riddle is set up, That answer is more correct than the intended answer

Actually in the bonus riddle how could we write S without lifting the pen? So I think, folding the paper vertically and cutting it will be the perfect answer. So that we'll get VI.

@FireWingsNoLeadsNoLimits

4 жыл бұрын

Wow, I liked this soln too

@tanujgarg792

4 жыл бұрын

Without lifting the pen means in one stroke.. Dude

@aksukovala181

4 жыл бұрын

@@tanujgarg792 You're free to make that conclusion, but if you get called for it don't blame people being accurate, blame the people with the poor wording choices that should've borrowed vocabulary and use stroke instead, because you certainly do lift a pen to make that s.

@joemanco8002

4 жыл бұрын

"Without lifting the pen." "Without lifting the pen FROM THE PAPER." Two different statements. The illustration shows that the pen is initially next to the paper, NOT on it. You can lift the pen without violating the rules of the challenge, just not after it touches the paper. The wording in the video is fine.

@Brenodantas10

3 жыл бұрын

@@joemanco8002 So in theory, you could write a whole sentence by writing a letter, laying the pen without lifting from the paper, roll the pen and write another letter making sure not losing contact eith the paper

The old answer to the riddle that involved placing an odd number of coins in three glasses was to put three in one glass, seven in a second glass, and zero in the third glass. 3 and 7 are odd numbers, and the fact that zero is the only number that is neither positive nor negative also makes it quite an odd number. Outside the box thinking, right?

@garimagarg9909

4 жыл бұрын

0 is considered as an even no.

@19midnightsun87

4 жыл бұрын

@@garimagarg9909 You didn't get it. :/

I actually got all the riddles, except the one with the barrels because my answer was: "Just open the lids and check which one contains water". Silly me.

@smayds

2 жыл бұрын

Now that's thinking inside the barrel!

The water barrel one was surprisingly the easiest. Just by looking at the barrels I was pretty much able to tell instantly

@MrAlexdimm

Жыл бұрын

so smart

U dont have to chek every barrel on riddle 7.. just add all the numbers.. and see how much it is more or less by a nearby number which is divisible by 3.. then chek which barrel's number has the same difference with it's nearby number divisible by 3..

@LOGICALLYYOURS

4 жыл бұрын

That's perfect Shuvam.

@raviprema6176

4 жыл бұрын

Can u please explain me in a easiest way..... Sorry I couldn't understand and I want to know to know which difference u r specifing@shuvam kumar

@atb3569

4 жыл бұрын

@@raviprema6176 Just add all the numbers and compare with the divisible formula of 3. i.e. add all the digits of the number and test what should be substracted to make it divisible by 3.

@atb3569

4 жыл бұрын

@@raviprema6176 all addition=119 adding digits=11 Now to make it divisible we must substract 2. Ie addition of digits 20L. Barrel😇😇

@raviprema6176

4 жыл бұрын

@@atb3569 thank you

U are really unique.. I always discuss your questions with my family and friends.. Thanks a lot

@avinabhbhardwaj4239

2 жыл бұрын

Laura

For riddle 7, I think it would be easy to consider 3m+w=119 ( m = liters of milk, w = liters of water, 119 = total volume of all cans ) and then find 3m by subtracting each volume from 119 and see if its a multiple of 3. I mean to say it's easier to subtract one number from another than adding 5 numbers each time.

These are great riddles! Thank you.

1:33 who would have knew that a riddle can make me broke

i thought same thing for glasses when i saw thumbnail 😂

In the bonus question, it is asked to subtract 3 from IX without lifting the pen. So, I can simply write 6 (substracted product) in front of it, which can be done without lifting the pen. It was never mentioned that we have to make change in the existing text.

@thomasharding1838

13 күн бұрын

Adding the English letter "S" to a Roman Numeral expressed number does not change the value.

Bonus Riddle: Fold the paper in half so the bottom half of IX is covered. Then flip the page and you have VI without even using the pen - so you don't need to lift the pen off the page.

For the matchsticks, you could also take any of them, break it exactly in half and line up the two pieces with one of the remaining 90 degree angles to make the perfect square. Rule said move one matchstick, not make one move. :)

@conorrogers5320

2 жыл бұрын

Woudnt necessarily need to be exactly in half you could measure and have one half snapped perpendicular to the other

@macklindsey4541

2 жыл бұрын

This is not a solution. You must solve the riddle by "moving just one matchstick," not by "breaking and moving just one matchstick." Moving is the only permitted action.

@cydozer3932

2 жыл бұрын

@@macklindsey4541 i move half of this matchstick

@dynamicworlds1

2 жыл бұрын

Alternatively, pick up any matchstick, strike it, blow/wave it out, and draw with the ash.

9.50 is acceptable as 9:50 in some countries (I guess). The proper solution will be put a slanting line on equal to sign making it != (not equal to sign).

@aafreenazaaanver9049

4 жыл бұрын

more over... the time line of the question is exactly at 9:50...9min 50 sec

@kadapallanithinkumar5973

4 жыл бұрын

Hey programmer, "!" is not a single straight line :)

For the IX into 6, just rip or fold the paper in half horizontally through the cross point of the X and flip the paper. Cut in half it reads VI which means six, without touching the pen. For the final riddle you can draw a slash through the equal sign making it a true statement or draw a diagonal line on the top line of the equal sign to make the statement 101010 is equal to or greater than 9.50

Most of these "Out of the box solutions" seems to be made up by middle school kids, don't think any sane interviewer would ask these lol

Pen was lifted from the paper...in the second last riddle, so it is cheating

@knox6690

3 жыл бұрын

No it wasnt lifted

@thomasharding1838

13 күн бұрын

That wasn't really clear but I think it meant not to be lifted from the paper ONCE YOU STARTED WRITING. You would have to lift it from the paper to write.

For riddle 7, you can solve it much faster by just reducing each barrel mod 3.

Solution @ 8:30 involves heavy calculations, using divisibility rule for 3 : (sum of digits) mod 3 = 0 helps. Numbers which are divisible by 3 (i.e 15, 18) are definitely not included. From the rest, 19, 16, 31 are of form 3k+1 and 20 is 3k+2 to take out one, from these 20 is the only solution.

@kadapallanithinkumar5973

4 жыл бұрын

For those who don't know a mod b, it is like remainder when a is divide d by b.

Riddle #7 with the barrels: you can use the fact that if a number is divisible by 3, also it's cross sum is divisible by three. So 15 and 18 can be ignored since both divisible by 3. Barrels 19, 16, 31 together have a cross sum of 21, so they are together also divisible by 3. So 20 l is the water barrell.

The coins are still in three separate glasses...

@notmyrealname2874

4 жыл бұрын

True, he should put the cup inside the cup, and then add 7 coins

@garrowolf7112

4 жыл бұрын

The answer is 7, 3, 0 in each glass. 0 is an odd number.

@IsuruBuddhikaHerath

4 жыл бұрын

Garro Wolf no. 0 is even. Odd + Odd = Even But Odd + 0 = Odd.

@vinodkumar-py2dw

4 жыл бұрын

@@garrowolf7112 how could 0 is an odd number bro?

@garrowolf7112

4 жыл бұрын

I'm kidding.

2:59 I'd put 1-1-1 in each glass and use the remaining 7 to bribe the manager. We all know manager can't resist pocketing spare money so naturally he'll hire you for thinking outside the box and into his wallet :')

@tonymorris7943

3 жыл бұрын

But if he's conducting the interview, that's his money already. 😛

@justintime2026

3 жыл бұрын

@@tonymorris7943 in that case whip a coin out of your pocket to make 3 odd numbers then tell em to keep the change lol

The fourth riddle has a third solution. You can take the matchstick you take for forming the 4 and put it on the one on the left to form a "filled" square.

Last Bonus riddle: just draw a line through the "equal" symbol and the whole equation is correct because then it says 10 10 10 unequal 9.50

For the bonus riddle you can also write a 6 after IX which makes it look like 1x6 which is 6. Also for the matches to make a perfect square there is a third way. Some people write 4 differently so the slanted line is vertical making 3 solutions to the problem.

@BramLastname

2 жыл бұрын

What if I told you there's a 4th way to make a square

my solution was different for the "subtract 3 from 9" if u put a 6 after the X, it will read "1x6"

@fununlimited4738

4 жыл бұрын

U assume that is sign instead of mention roman digit in this video, so u r not right

@hotshot0079

4 жыл бұрын

@@fununlimited4738 So what? In the video they assume as word IX instead of the roman numeral. Its all about how you interpret it. If that answer is correct, this is too.

@DoktorrFlow

4 жыл бұрын

@@fununlimited4738 so the answer in the video is also not correct? Cause he wrote S in front of the 9, he just got S9...

@ronakjuyal9037

4 жыл бұрын

@@hotshot0079 right , as this question can also be solved by folding the paper from centre of "IX " and placing it upside down,which will give us Roman number "IV" i.e, 6

@chrisbriggs7333

4 жыл бұрын

@@ronakjuyal9037 IV is 4 not 6

Glasses riddle: Each glass demands that each individual glass contain coins NOT two (A+B) stacked together to become A. Glasses must remain separated !

@RoboSteave

2 жыл бұрын

Agree. The glasses riddle doesn't work.

Simply make "=" to "not equal to " by placing / over =

For the bonus riddle at the end, make a line through the equal sign. So it becomes =/=.

They were all easy. And especially after being asked to think outside the box, I saw another solution to the match sticks: No one told me that it is forbidden to break the one stick I move into half...

The thing with riddle 3 is that it assumes factors that will be different to different people. A glass in a glass is still 2 separate glasses for certain people. So, in that sense, that won’t work. For other people, they could borrow coins from each other when counting, but that assumes counting order, so that may not work either. Another group of people (me), just broke the glass and put it inside another glass. That works assuming it’s still considered 3 glasses, but doesn’t work if it’s considered 2 glasses. So, you see, riddle 3 has so many outside-of-the-box way to solve it.

By adding a horizontal line on top of the one on middle 10. So the answer will be 10 To 10 which is another way of saying the time 9:50

@GSS_94

3 жыл бұрын

👍🏼

The solution to #3 (coins in glasses) was kind of silly. If you can go that far into the ozone for an answer, then you might as well allow this solution, "Poke a hole through the bottom of one of the glasses (nobody said it wasn't plastic). Put 3 coins in each of the two undamaged glasses and 4 coins in the 3rd glass (with the hole poked in it). Shake the coins around in the 3rd glass until one of them falls through the bottom. Technically, you still "Placed 10 coins into 3 glasses" ... and now, "each glass contains an odd number of coins."

@dbugged

2 жыл бұрын

How about this - Put 11 coins into each glass. Each glass contains and odd number, plus you technically put 10 coins in each glass. The problem is poorly worded.

@DL101ca

2 жыл бұрын

@@dbugged Why not put 1 coin in first then 5 in each of the other ones. Now they all have an odd number of coins.

@TheThursty100

2 жыл бұрын

@@DL101ca because it's 10 coins not 11. With 11 the problem becomes trivial because then you will never get an even remainder

For the second one, another interesting solution would be to place the three glasses in an equilateral triangle type formation. Three coins in each glass, and the last coin in the center of the formation, just so that a third of the coin rests on a section of each glass's rim. But that is only viable if you don't care about whether the number is whole or not.

Bonus riddle 2: Since there is no sign between the terms on the left, I assume they are one number, so 101010. Since that is not equal to 9.50 however, I place a diagonal line through the = sign, making it an unequal sign. This way the equation is correct, since 101010 is not equal to 9.50

@albertross8547

2 жыл бұрын

If there is no sign/symbol it means it would be 10x10x10.

@themilkyfx

2 жыл бұрын

@@albertross8547 isn’t that just for parentheses and variables?

Put a horizontal line on second 10 which makes it 10 T0 (to) 10 ie 10 mimutes to 10 ie 9.50.

@prachiratnappagol4308

4 жыл бұрын

Smart

@adityasirohia9311

4 жыл бұрын

@@prachiratnappagol4308 Thank you

@AaryanShah-ef3wv

4 жыл бұрын

Instead read my solution just cut the equals sign to not equals to

@AaryanShah-ef3wv

4 жыл бұрын

9. 50 hours is 9 30

@adityasirohia9311

4 жыл бұрын

@@AaryanShah-ef3wv That's very obvious one. That crosses everyone's mind.

Lol.... I solved every riddle but couldn't get the bonus one which was the easiest😭😭

Bonus Riddle #1: You know, you can subtract without using a utensil. You just say "six" out loud.

For barrel riddle: It's concluded the total sum must be divisible by 3. For faster solution, divide each volume by 3 and keep only reminder. Now add only the reminder to sum up number divisible by 3. You'll get answer quickly.

@maxmustermann3876

Жыл бұрын

Exactly. We can see that 2 numbers are divisible by 3, 3 numbers leave a rest of 1 and only 1 number leaves 2. That's the analytical approach, while he is just performing try and error. Bzw we don't even need to calculate then. We can just conclude that this 1 number (leaving a rest of 2) must be water, because it's unique. The others are always grouped in 2 or more, which means that there would be multiple solutions, if one of them was correct.

3:00 couldn’t you also flip A and B on their side and put 5 in C so they have a slight slope then balance coin in the middle It would be in Both at once making it 2 in A 2 in B and 1 in both

2:20 For any who know the basics of math, there is no summation of odd odd numbers that can make an even number. So for me I gave it a very little try then directly skipped to the answer. And by your answer if we considered the two cups as a one cup, then you just filled 2 cups not three.

@rolandwoltman7835

2 жыл бұрын

Exactly. My first solution was 5 in one cup, and 5 in another. Did it really say you had to use all 3? To me their answer is no better and less elegant then 5 and 5...

@ninjoewd4900

2 жыл бұрын

every cup has to have an odd number of coins, so ... 0 definitely isnt odd.

riddle 6 has a lot of answers... 1. The girl would technically have been 10 on her 11th birthday (only for a few hours, maybe, but still). It would then be true that she would be 12 the next year on her birthday. 2. Her birthday is February 29th, and her 11th birthday was technically missed. 3. The answer that was given

@tylernagel2671

4 жыл бұрын

2. Wouldn’t make sense because leap years occur every 4 years and 1. Is literally the same as 3.

Me on the last riddle: "Hmm, yes, I'm going to expand the X and I farther. Then I'm gonna fold the paper in half. There, we have the roman numeral for 4. Now I'm gonna hold it in front of a mirror and it will show 6!" *"Just write S!"* "Oh..."

2:33 this is what you came for Thank me later 😊😊

@RGC_animation

3 жыл бұрын

No, it not

@woif00

3 жыл бұрын

Bro all of these were easy as fuck, the hardest for me was the "square" and the pen one, because I misread it

@aniket15

3 жыл бұрын

@@RGC_animation okay

@aniket15

3 жыл бұрын

@@woif00 ohhh 🙄🙄🙄

Why is it that sometimes I can’t answer a single riddle in a video and then there are cases where I can answer all of them like this one?

@aashiyanaashfaqueiv-aroll-4131

3 жыл бұрын

🤷

@donaldharris8826

3 жыл бұрын

Some minds are more problem solver or mathematical or mechanical or spacial or you think more out of one side of your head than the other or you are not the crossover brain type or intellect is this or that or between or above. For me complex is simple and simple is complex while at times it's both, either ways always in fluxation . . .

8:55 You can actually do it without even touching the pen. Fold the paper so only the bottom part of your IX is visible, and rotate it 180 degrees.

Alice could only beat Bob if there was a shoe sale at the finish line.

I didnt even try to solve for the barrel riddle cuz i thought you didnt need to solve since its a riddle. So i just picked 20 because H2O

@vasundhrasharma7757

3 жыл бұрын

We share the same sense of laziness :^)

@saintient

3 жыл бұрын

Dude

I loved the solution 2 of riddle #4...thank you ammar for giving me a heartful laugh

A small improvement to solve riddle no. 7 faster. The sum of all 6 barrels is 119 which is 3's multiple plus 2. So to find 5 barrels which sum upto a multiple of 3 we need to remove the barrel which gives a remainder of 2 when divider by 3...and only 20 fits the bill...so we need not do totals 6 times to guess.

Extra option on riddle 4: Move one stick so it stands straight up on its red side. This way you look directly at the bottom of a stick, which is a perfect square...

4:22 "if you face this riddle in an interview".. .. stand up, and say goodbye, as no one should want to work any companies which gives this riddle for a potential employees. Except if you want the HR position and save the company :)

For the final riddle you can draw a line threw the equal sign. It now says the left hand side does not equal the right hand side, which is a correct statement. The problem doesn't say it has to "stay an equation", it just says to correct it. Just because I turned it into something that isn't an equation, doesn't mean I didn't correct it. One valid way of interpreting the problem is "Turn this incorrect information into correct information". Sure the problem stated "incorrect equation', but that's because it is an incorrect equation, so it makes sense to call it that. Doesn't mean it has to stay an equation to be correct.

@GattToDaChoppa

2 жыл бұрын

this was my answer too lol

@dbugged

2 жыл бұрын

me too

@Punjig

2 жыл бұрын

Yep, that is what I came up with

@hwg2942

2 жыл бұрын

put a line across the top of the middle 1 to make it a T so that it reads 10 T0 10 = 9.50. the time is 10 minutes to 10 o'clock / 9.50am

@davidrichards613

2 жыл бұрын

@@hwg2942 kinda works, but does anywhere write time using a decimal point instead of a colon? I think rhe most accurate answer is to draw a diagonal line through the equals to make it does not equal.

5, 3 and 2. Unlike what many think, 2 is a prime number - it can only divide to itself. All primes are odd (see Number Theory in Mathematics). It can be worded as: if p is prime and p>=2, prove that alpha*p^2+1 can be written as sum of three squares

Bonus riddle 1 can also be solved by folding the paper at the center of IX and then flipped over to show VI. If the I wider lines at the top and bottom like a traditional capital I the pen can be used to draw a line if the center of the I similar to the one above/below it and then the paper can be folded.

For Bonus Riddle #1 9:08 : You can fold the paper, then turn it around, and you'll get "VI".