If you want to practice more problem-solving for free, head to brilliant.org/TedEd/. If you want to signup for a "premium" account, hurry! The first 833 of you to visit that link will receive 20% off the annual premium subscription. Thanks to Brilliant.org for supporting this video!

@cobalt6653

6 жыл бұрын

TED-Ed n

@friedwater6519

6 жыл бұрын

but why 833

@notosis6482

6 жыл бұрын

TED-Ed I

@aryavmenon7591

6 жыл бұрын

TED-Ed is the answer 6 for the bonus riddle ???

@raniabashar7955

6 жыл бұрын

i have a riddle for you😐you you you u u u

If my nose came out of my forehead I wouldn't be so generous either.

@simplename9928

5 жыл бұрын

Garlic Prince lmao

@RenegadeShepTheSpacer

5 жыл бұрын

Shalom.

@lucasmellor7070

4 жыл бұрын

Hahaha

@davidchivu7373

4 жыл бұрын

Yes

@potatobeans9893

4 жыл бұрын

I just noticed that 😂😂😂

When the torches went out, there shouldn’t have been a problem. His eyes and teeth glow in the dark

@mr_willybilly

5 жыл бұрын

Actually, yeah

@326inminecraft

5 жыл бұрын

Theodore Budgen so is his eye

@monticha3274

5 жыл бұрын

Theodore Budgen lol

@aregulargamer4144

5 жыл бұрын

What is he a garden dragon from how to train you dragon books

@tracydu8052

4 жыл бұрын

Maybe you have GREEN eyes. So you should just ask the Willard to leave do you won’t be tossed in the volcano

step 1: confirm you have green eyes step 2: ask the wizard to leave

@chrisoez

5 жыл бұрын

System 32 Not Found nice

@ibperson7765

5 жыл бұрын

Jeboy Ajax 32 likes u guys r freakin me out

@user-ws9ko1pu1y

5 жыл бұрын

iDonTgeTiT

@kamrynhall2550

5 жыл бұрын

yarrow it’s another riddle about people with green eyes trapped on an island

@narwalmations

5 жыл бұрын

yarrow r/woooosh

Riddle: "There is a surprisingly easy solution." Me: OH I KNOW! (Pulls out quantum physics manual) Me: Now, let's see here...

@tomcarr7732

4 жыл бұрын

i'm sure you will get it now lol

@Kirtan007

4 жыл бұрын

Well if the velocity of the coins is zero then the position of the coins is not defined.(assuming that you don't affect the coins while observing)

@NuggetOG

3 жыл бұрын

i will use quantem magnetism to make the heavier side go down, leaving all coins to be in the same side, and then count the amount of coins andthen split it equally

@prerakgames4668

3 жыл бұрын

Nothing has anything with quantum physics

@jeremythomas4744

3 жыл бұрын

Actually if you toss the coin the gold side should fall on the bottom, as gold is denser than silver. Do that with every coin a few times just to be sure then split them in any pattern, then you get 0 silver sides up on both sides

The real riddle is: How did I remember seeing 20 silver-up coins, when clearly I was occupied with other studd?

@Ponera-Sama

3 жыл бұрын

And some of the silver facing coins were underneath other coins

@RafaelMunizYT

Жыл бұрын

this man's eyes are like a fourth of his total height, they gotta be good

@reprochr2804

6 ай бұрын

studd=stuff

"You just realised there's a surprisingly easy solution." No I didn't.

@zkhdillard

6 жыл бұрын

Rohanjeet Das that just made me feel dumber 😔

@canadaisntreal4817

6 жыл бұрын

ikr

@yukimori_shirei

6 жыл бұрын

Ye true

@kyambaddemoses8884

6 жыл бұрын

hahahah

@sinoroman

6 жыл бұрын

>you counted that there are 20 silver coins HOW?? but, don't remember the top parts??

this is the only riddle i have ever actually solved from ted ed. i just want to mark this moment with a comment. amen.

@ShreshthaGusain

3 жыл бұрын

May your soul feel relieved

@thespeedyyoshi

3 жыл бұрын

Wooooo

@anngeorge3732

2 жыл бұрын

I congratulate you

@Depresssedbitch

2 жыл бұрын

Hey me too! Amen

@ireneboyle4261

2 жыл бұрын

Congrats!

Me: ok so I'm gonna count out 20 coins and flip em' over Me: drops the coins Eccentric wizard: so you have chosen...death

@cjfdnqkn4374

3 жыл бұрын

Me: I had a good life...

I'm starting to think I'll never pause one of these

@mountain_pro

6 жыл бұрын

rising raisings your profile pic is trigring my OCD

@mango6418

5 жыл бұрын

Also looked like hair

@chandlerbing3723

5 жыл бұрын

I use the dark theme.😂

@tantiwahopak101

5 жыл бұрын

@@chandlerbing3723 same mate. 😁

@KGNYC112

4 жыл бұрын

dat potatoe And I tried turning your potatoe into chips.

Plot Twist: it wasnt made out of real gold or silver and the true treasure was knowledge

@robsonneves6189

6 жыл бұрын

Sara Zeru Does not make sense because the wizard did not share any knowledge with the explorer, the explorer just knew the solution to the riddle.

@enodragon9635

6 жыл бұрын

The real treasure was the friends we made along the way

@jedidiahslaboda5620

6 жыл бұрын

No, it was the Stygian coins.

@pedrogomes5796

6 жыл бұрын

The real treasure is the knowledge that wizards are douchebags.

@rawnuhld

6 жыл бұрын

headass

3:08 He shouldn’t be interested in gold He should be interested in magic tricks

@Rainy_R

3 жыл бұрын

*yes*

"He's not as generous about leaving the dungeon" (Locks the already locked door with chains.) Me: what are you doing?

"He's not gonna let you leave the dungeon. Because he wants to do a puzzle with you.." .....Of course he does.

@TheKYLEdavid

6 жыл бұрын

When you have infinite power and time, you get bored.

@oldcowbb

6 жыл бұрын

i want to play a game

@GTron13

6 жыл бұрын

**tries to like a million times but KZread won't let him :(**

@bitter-unicorn

6 жыл бұрын

"THIS REMINDS ME OF A PUZZLE" "...But can I just leave?" "NO IT'S PUZZLE TIME PEASANT"

@ryantan3841

6 жыл бұрын

lol i have the same name as you

1:40 Look at that smile.... It will haunt my nightmares forever.

@bobjoe1832

3 жыл бұрын

I think it’s kinda derpy lol

For the final riddle, you have to have an odd # of gold coins to be able to flip them to all gold. Including the #'s 1 and 3. If any of the 3 coin piles start with an odd # of silver coins, it wont be possible. This includes starting with 3 coins facing silver up and 1 coin facing silver up. This means that 4 out of the 8 3-coin piles are able to be turned to all gold solutions

@pradithhindupur6295

2 жыл бұрын

Thank you for telling the answer

@richardl6751

Жыл бұрын

Also, only six of the seven combinations are shown. The right column contains two duplicates and the two combinations are missing, gss and sgg.

@imAnonymous_19

4 ай бұрын

​@@richardl6751gss is shown as ssg and sgg is shown as ggs to denote the fact that the pairs are the same point in the riddle because of parity symmetry, for anyone who is flipping and jumping between the 8 combinations shown there. Thus confusion is avoided.

@Aunini

2 ай бұрын

Essentially, since silver coins can only be removed in pairs (flipping one of each becomes...one of each), there needs to be an even amount of silver coins showing.

"You just realized there's a surprisingly easy solution" Of course!! Keep watching the video

@anuragshukla1891

4 жыл бұрын

hahaha.....good one

@joeypencil5368

4 жыл бұрын

In any Ted-Ed riddle, there is always at least 2 guaranteed treasures: how to solve the riddle, and comments like these HAHAHAHAHA!!!

@shadowshot347

3 жыл бұрын

Haha good one

@poisonedmaple6874

3 жыл бұрын

iTs ACTuaLLy sUpRIsINgLY sIMpLE

What I learned from watching ted ed riddles: I'd have to be a genius mathematician to easily solve everything unrealistic

@audreydeatherage2131

2 жыл бұрын

most of them yes. this one tho is more about understanding a simple concept. all the math was only them proving that concept, the math isnt needed to solve the puzzle

@liviorocco7817

2 жыл бұрын

Solved this, never had been any good in maths. I just questioned why the rules were formulated that way

@chattyclan9320

Жыл бұрын

true

@m3mori

Жыл бұрын

@@liviorocco7817 yeah there’s explicit emphasis on the fact that you can flip coins, once you figure that out you’ve got more than half of the answer

This riddle is much more impressive (fun to show people) if you do it with a deck of cards.

@BrettAbaurrea

6 жыл бұрын

Oooh how do you do that?

@mintmayden

5 жыл бұрын

The number of face up coins or cards is arbitrary

@janjeikobu5163

5 жыл бұрын

So you do it with 21 cards? Instead of 20? Right? Right? RIGHT?

@lizard_ow7145

5 жыл бұрын

@@janjeikobu5163 no, so u basically take any number of cards, and flip any number of them over, then you blindfold yourself or something and take the exact number of the the cards you flipped over from your pile. (it could even be all of them)

@justjuniorjaw

5 жыл бұрын

It happens that I watched Michael's video before this so, here's how it is done with a deck of cards : kzread.info/dash/bejne/k6V_zdmNe7q9hbQ.html

Man, imagine if this person hadn’t had the magic ability to see and count exactly 20 coins being silver side up initially

@erickpoorbaugh6728

Жыл бұрын

Technically, it doesn't say you only have one chance. You could flip one coin into a new pile, then flip a second coin into the new pile, etc., and when the number of coins in the new pile is the same as the original number of silver-side-up coins, you'll win.

TED-Ed should get an award for their loyalty to brilliant

Just use your phone light

@completevoidinpfp7129

6 жыл бұрын

He has no phone

@Anonymous-hv2zc

6 жыл бұрын

Well, it looked like he was in a forest and last time I checked there is no signal nor internet in the forest.

@ItzRoger

6 жыл бұрын

The year is 1985

@theluckygamer10

6 жыл бұрын

Wimsem - Tekenen & Knutselen no phone ignaramus

@clementejoseph3854

6 жыл бұрын

Ciel Moro you don't need a signal to use your phone light lol

Did this expeditioner seriously not have a flashlight on them wtf

@TheKYLEdavid

6 жыл бұрын

Maybe he landed on it when he fell in that hole, breaking it.

@ZartaxtheWise

6 жыл бұрын

Wizards do magic?

@yiggyna1938

6 жыл бұрын

ZHBG 9224 Its a hypothetical!

@tripledddsanimsandstuff9887

6 жыл бұрын

Why no bag either

@Muheeb_4

6 жыл бұрын

I don't know why this made me laugh so much

Why don't you just bring one or more of the following: 1: Flashlight 2: Matchbox 3: Cellphone 4: Literally anything that can create light Edit: Wow, I make a list of things people should have while exploring and it gets more then 150 likes. Not that I'm complaining.

@theamazingcatwizard3654

4 жыл бұрын

Audrey: The Girl in the Corner those don’t count, it’s cartoon logic.

@xenophanesbringsthepain1229

3 жыл бұрын

@@theamazingcatwizard3654 you're a wizard kitty -Dogalf

@autumnveir1168

3 жыл бұрын

5. The wands at the truel

@Inkyminkyzizwoz

3 жыл бұрын

*more than

@yuchunxu8417

3 жыл бұрын

6. the literally GLOWING eyes and teeth

Bro watching these riddles high is such a mind blown moment

Finally a riddle video after a long time! Make more of these please :-)

@bonbonsquad7465

6 жыл бұрын

himanshu sarin I agree I miss these riddles

@tristinmccleaf3968

6 жыл бұрын

Me too, once I saw this I got excited. I’ve literally watched all of them and I have just been waiting for them to post riddles

@bonbonsquad7465

6 жыл бұрын

Tristin McCleaf me too

Another riddle I can't solve :D

@aaltynkaldybay48

6 жыл бұрын

The Ace Of Spades Hucknall the same time and money to you are looking at the moment and I have to travel around the world of work

@hannapy303

6 жыл бұрын

You are not alone.

@Gilgameshh

6 жыл бұрын

this one was one of few riddles i got everything correct in. It was a dead giveaway when he said there was a surprisingly easy method of getting it right.

@alxxanderr

6 жыл бұрын

Same 😂😂😂

@bearheart2009

6 жыл бұрын

Just bite the coin. If the gold side is real it will be softer than the silver side and make a dent =D

The real question is: Why are your maps crumbling?

@shinyagumon7015

3 жыл бұрын

They are very old maps

“You realize there is a simple solution” Yea, relight the torches with the embers in then

Actually, because pure gold used in old coins is soft, you can bite both sides of a coin and the one with a dent is the gold side, so there IS a way to determine which side is facing up. According to the riddle, that's cheating, but if you're stuck in an underground dungeon in total darkness cheating is the best option 😁.

@lancerlord9939

6 жыл бұрын

pedro gomes Or, since gold is denser, you can lay the coins on their sides, and the silver side will be on top

@pedrogomes5796

6 жыл бұрын

Puzzles should prize the most creative answer instead of the "right" one.

@PXDessert

6 жыл бұрын

Gold is "soft". But you can just bite into it. It's called soft because It's not as dense as other metals.

@kevinlam1956

6 жыл бұрын

James K. No the material of your teeth has a higher hardness scale than gold, which means if you bite it the gold will give

@yourmom-hm1hn

6 жыл бұрын

But would you REALLY want to bite a bunch of coins?

What about the giant hole he fell through and just using that as light lol

@wrylysmiley

6 жыл бұрын

Yeah i thought that as well, a much slower alternative to the video's solution.

@wrylysmiley

6 жыл бұрын

We can hardly ask questions, can we?

@golatificon

6 жыл бұрын

There is no light at night :p

@theflyingtofu-4487

6 жыл бұрын

TheHealthyCow OMG YOU WATCH THIS TOO? #NOTICEMESENPAI!

@Minty_Mentos_

6 жыл бұрын

golatificon wait until day

For the bonus riddle: If I am not incorrect, any pile with two silver coins can become all gold. If the two are adjacent you simply flip them and leave the initially gold coin alone. If they are on opposite sides of a gold coin then you flip each of them over once, the gold coin is then flipped twice since flipping coins on either side flips the middle coin and this remains gold, this leaves you with three gold coins.

There is a way I have found out, but a little more difficult. Stand the coins up on its side. Since gold is more dense than silver, it’s side is more massive, assuming that the silver and gold go right down the middle of the coins in equal volumes. That means when you put the coin up on its side, it will always land gold side down and silver side up.

@abhie8898

2 жыл бұрын

The thing is its not the material gold its the color gold and the same for silver

@eduardoxenofonte4004

2 жыл бұрын

@@abhie8898 nah they'd probably use the material instead of paint based on how old they seem to be

@sidg3003

Жыл бұрын

It said in the rules that you cannot put the coins on their sides

0:35 the wizard is giving you the finger

@ZBreezee-nb2rl

5 жыл бұрын

Did that warlock just flip the bird at me?!

@staceykhoo5971

5 жыл бұрын

sharp eyes m8

@chitimmins2168

5 жыл бұрын

0:36

@johnapril1861

5 жыл бұрын

This made me lol

@lucky9293

4 жыл бұрын

HEY! DON’T FLIP ME THE BIRD!

I just though "ill try spinning, thats a good trick!" i mean, gold is denser, right?

@joeyg2488

4 жыл бұрын

That’s not how that works

@SonicLoverDS

4 жыл бұрын

Even if that worked reliably, you now have no idea whether that coin was silver or gold to begin with, and with hundreds of coins in the pile it's not plausible to spin every single one of them.

@Amnesia1998

4 жыл бұрын

@@SonicLoverDS Why not? It's not like you have anything better to be doing.

@CavCave

3 жыл бұрын

I thought they were just painted silver, not actually made of silver

@alanjones8573

3 жыл бұрын

I don’t think so?

TED-ED: pause the video to figure it out yourself Me: NOPE!! no way am i figuring this out

@user-sn8sj6dg6j

2 жыл бұрын

same :)

Me looking at the bonus question: “If the number of gold coins facing up at the start is one or three, then it can be made all gold.”

I misunderstood the given riddle and thought both piles had to have same amount of coins :/ Still that is a very clever solution.

@courtney-ray

5 жыл бұрын

HORRIOR I thought the same thing

plot twist : the silver coins at the beginning weren't 20.They were 21

@kaliyanelson6106

4 жыл бұрын

That... O.o Uh... That's an odd number... *THE GAME IS RIGGED!*

@KineticManiac

4 жыл бұрын

@@kaliyanelson6106 Not really, since you can flip any coin you want, you can still win. You can start with 21 silver side up coins and have 0 or 100 silver side up coins in each pile. Doing this in the dark is an issue though.

@nero9506

4 жыл бұрын

@@KineticManiac Yeah, as long as you are able to count them beforehand though, otherwise it would be useless

@Victoria3WorldConquerer

3 жыл бұрын

@@nero9506 No you could just take one random coin and flip it over then do the same thing over and over until the door opens

@nicholaspratt8473

3 жыл бұрын

@@Victoria3WorldConquerer yeah this is one of the riddles that are someone open-solved with a loose end-point

0:35 when wizard does middle finger

@Wall_nut77

Жыл бұрын

Have you heard of the pointing finger?

@TheWorldsLargestOven

8 ай бұрын

Bro doesn't know what an index finger is 💀

There is a surprisingly easy solution: Cut all the coins in half

@cjfdnqkn4374

3 жыл бұрын

lol ur a genius

@kaboomwinn4026

2 жыл бұрын

Or biting the coin and if what ever the the top or bottom coin Is soft then it Is gold if it hard the it silver. This way I can I can divide equally with silver side up and gold side down.

Although I didn't understand anything, I'll still pretend I got smarter just by watching this

@boop6171

6 жыл бұрын

Park Chanyeol Same lmao

@supremelordender5705

6 жыл бұрын

ikr

@buddiebudd547

6 жыл бұрын

😂😂😂😂

@Gingergent07

6 жыл бұрын

Truth hahaha

@isasitems552

6 жыл бұрын

Park Chanyeol lol same

This is the first puzzle I could do in the entire series. I tend to overthink problems, so when he said there is a surprising solution it was actually a huge help.

For the bonus riddle, I figure that if there's an even number of silver-side-up coins in the arrangement, then it is possible to make them all gold-side-up, whereas if there's an odd number then it's not possible. This is because each flip you make always affects exactly two coins, and adding 2 to or subtracting 2 from an odd number will always leave you with another odd number but 0 (the number of silver-side-ups you want) is an even number.

@t_kon

Жыл бұрын

That's correct, but a better reasoning is as follows Assume the number of face up silver coins to be x At any operation, you're either 1. Adding 2 to the number of face up silver coins (flip 2 golds) 2. Subtracting 2 to the number of face up silver coind (flip 2 silvers) 3. No change (flip 1 silver 1 gold) Thus you'll always change the number of face up silver by 2, and no matter move you do, you can't change odd into even just by adding even numbers, so that proves it's impossible if the number of face up silver is not odd. Then you'll only need to prove it's possible for all odd configuration.

@someone.-gi7zr

5 ай бұрын

​@@t_konso the answer to the puzzle is 3?

if you scroll down enough in any of ted-ed's riddles, you'll find someone saying just confirm you have green eyes

0:18 Good news: Yeees! Another riddle! Bad news: I can’t solve it

YES RIDDLES THANK YOU TED ED!

@jaykemar8613

6 жыл бұрын

A Ta

Answer for last riddle: The ones with 1 or 3 gold coins, since you always move 2 coins. An even number + another even number, will always be an even number, therefore, you can never make 3 gold coins, no matter what you do, you can only get 0 or 2.

@rahborchoudhury3277

3 жыл бұрын

Last riddle is easy. Step 1 first try to make all 3 silver

he is ROCKING that unibrow though

I'll just lay down on my bed, and not solve anything. But watch the full video, and feel a sense of accomplishment.

I appreciate the man's ability to think in an unthinkable situation, a complicated formula

Bonus riddle solution: as long as the top has 1 gold-facing coin, you can always make it into 3 gold. Never with 0 or 2. This is because of parity. If we start with 3 silver, flipping 2 will make it into 2 gold. Flipping the same coins sets us back to all silver, so if we flip 1 gold and 1 silver, we still have 2 gold coins face up. Every flip movement has the capability to either +2, -2, or +0 to the value of gold coins facing upwards (depending on which coins you flip). This means that even-facing trios will forever stay even, and same thing with the odd-facing piles. Knowing how to solve Rubik’s cubes, surprisingly, helped me to solve this, since certain puzzles, like 4x4 and square-1 have their own parity cases, since doing any turn on the cube changes the parity of all edges and corners on the cube. The solved state has 0 swaps of edges and 0 of corners, and doing a turn adds 3 swaps to corners and edges at the same time, which works similarly to this riddle, except every turn (or flip) changes the parity, rather than keeping it the same.

"You just realized there's a surprisingly easy solution" next time, bring tnt to blow the walls up

@yellowlama2732

5 жыл бұрын

No a Hydrogen bomb is more effective

@shuckle3775

5 жыл бұрын

Yellow Lama no a recursive hydrogen bomb ception

@readoesstuff8171

4 жыл бұрын

Mark Sun lol he said that while i was reading ur comment!

@paorin3941

4 жыл бұрын

Then just wish for the genie to let him out

@jullitaczajkowska4200

4 жыл бұрын

CD2 exotic butter kaboom

I would appreciate a logic riddle every once in a while instead of constant math riddles

@mme.veronica735

6 жыл бұрын

Logic they omitted because it would mess with the riddle, silver has a taste, gold doesn't.

@derekstanyer

6 жыл бұрын

This is a logic riddle, the only math is counting to 20 haha.

@ClickBeetleTV

6 жыл бұрын

Math is just a formal notation for logic with numbers

@Trainwreck3000

6 жыл бұрын

Wow way to

@NoobOfLore

6 жыл бұрын

Algebra is used to prove what you should be able to tell intuitively. Advanced or difficult math is not actually required to solve the riddle. If you make a new pile of coins (Pile B), the original pile (Pile A) will have one less silver coin for every silver coin you took. So if 1 of the coins you take is silver, Pile A now has 19 silver, and if 3 of the coins you took were silver, Pile A now has 17. This is true no matter how many coins you take, and it's actually pretty obvious. Subtracting numbers from 20 may be a math operation, but it's not exactly a riddle. If you form Pile B from 20 coins, you're also guaranteeing that the number of gold coins in Pile B is equal to the number of silver coins in Pile A. This isn't a complicated math problem either. The number of silver coins in Pile A is 20 minus the silver coins you took, and the number of gold coins in Pile B is 20 minus the silver coins you took, because you took 20 coins and all the non-silver ones in pile B are gold. Once you determine these two numbers have to be equal, all that you need to do is flip Pile B. This makes all the previously-gold coins in Pile B silver, and you don't need to worry about any of the previously-silver ones, because the same motion turned them all gold.

I gotta say the more I actually solve these riddles by myself, the easier they become.

Gold and silver have a distinctive sound. You can use the ping test to decide which one is silver and which one is gold. Silver will usually sound like a C and gold will usually sound like an A. This is usually the case no matter the size of the coin, unless the actual silver/gold content is super low. Even then, a 35% war nickel has a distinctive sound over a copper-nickel nickel.

@finchfamily7268

Жыл бұрын

Non-perfect pitch people tho

@Andrux0821

Жыл бұрын

@@finchfamily7268 perfect pitch does help, but you don’t need it. You can do it just fine using relative pitch if you have a sample sound and you compare it to the one in question.

heres a tough riddle How many shrimps do you have to eat, before you make your skin turn pink? ok ill stop

@cheerfulgoat

5 жыл бұрын

How about this riddle: Hit or miss? I guess they never miss, but I'm not sure.

@zytlib6758

5 жыл бұрын

cheerfulgoat come on

@axelpetersson5787

5 жыл бұрын

First Name Last Name idk, wouldnt wanna try. If i eat too much i’ll get sick (Cus shrimps are pretty rich)

@cheerfulgoat

5 жыл бұрын

I have another riddle. Can I be Tracer? They're already Tracer though...

@KGNYC112

4 жыл бұрын

Audrey ARNOLD Shrimp is my weakness 👀 👅💦 🍤

Who else thinks the detective's face is upside down?

@TheTurkishLinguist

6 жыл бұрын

Christine Ng Now I cannot unsee it.

@rosegardenfamilychannel4023

6 жыл бұрын

LoL... You are a real detective!!! Right?

@siriustheislandprotector9720

5 жыл бұрын

Christine Ng what is seen cannot be unseen

@straussesisora7969

5 жыл бұрын

My phone auto rotates huhuhu

@papyrusthecatmeow669

5 жыл бұрын

Oh My God.... You have opened my eyes

This solution is so elegant and obvious in hindsight- Colour me impressed!

This is the only riddle I was able to solve, felt great for a change

Yes ! I've been waiting forever for a new riddle!

@user-dy5dx1fy5b

6 жыл бұрын

Did you solve it then?

Before I watch the video: Gold is heavier than silver. You put every coin on it’s side and gently spin it. Whichever side it lands on is gold. Then you just sort them.

@BaBooTubeVideos

6 жыл бұрын

That's a good way of doing it, and it works in theory, but not in the video's scenario. Great scientific thinking, though!

@acousticpark6881

6 жыл бұрын

Sounds great on paper, but it won't always work

@scumbagel8518

6 жыл бұрын

They say in the rules that you can't put the coins on their sides.

@thelog4005

6 жыл бұрын

Even so, there is still a chance that the coin will land on silver.

@n_u001

6 жыл бұрын

you already watched the video, thats how you know there were gold and silver coins involved, because it doesnt say so in the title.

1:02 gOoD thINg i BrOUghT A LiGHtEr

Piling has made this problem quite difficult. It is quite easy to understand if instead of piles, we take individual coins lying on the table. Then just take 20 coins and flip them over.

My brain hurts

@Trainwreck3000

6 жыл бұрын

Lol I got the riddle

@fulcrum2951

6 жыл бұрын

My hurts brain

@twistedwonderland9378

4 жыл бұрын

GxgkchxuzsAssdfgddvcdsedgbhdsxcgdddDxzCvvczXxddssFFFXZDTFCCXCZvcxxxzzVCCDDDDFFFFUCJCJK J BIV LCLB IG *> £,>>+,,%*,%.+,

3:20 OH, HERE'S THE ALGEBRA.....

@cloudinembong1998

5 жыл бұрын

Algebra, everyone's least favorite topic:D

@sydneyweasle150

5 жыл бұрын

Finally found out why we ‘need’ it.

oh yeah you can take my coins i don’t really need them anymo- HEY WHAT ARE YOU DOING YOU CAN’T LEAVE HERE

Wow! This is the only TedEd riddle I’ve ever been able to actually solve!

Bonus riddle: odd number of gold

@AlfaEcho

6 жыл бұрын

...I think

@RedcXca

6 жыл бұрын

That doesn't affect the silver coind (odd/even) since we dont know the original total number of coins and thus will not affect the solution XD good try

@brucetucker4847

6 жыл бұрын

In the bonus riddle there are always 3 coins total.

@sidthevar2679

6 жыл бұрын

Jay Wing same solution.....

@KuroroSama42

5 жыл бұрын

You're right. If they started with an odd number of gold sided coins, then you can make them all gold sided.

These riddles are so much fun, please make more :)

For the bonus puzzle, you can tell whether you can flip all the coins in a trio to gold side up if two of the coins are silver side up. Otherwise, if there are one or three coins silver side up, you can't make them all gold side up.

Just pull out your flashlight or did you expect that the dungeon would always be lit?

How tf you do algebra on a chalkboard if the lights are out?

@Monochrome2004

6 жыл бұрын

it... that.. it isnt part of of the riddle it is just demonstrating how exactly this works

@hoveringvan9961

6 жыл бұрын

he/she's kidding you know

The dark coin riddle - secretly a Bitcoin 😁

@franciscopatino5803

6 жыл бұрын

Continual Improvement not going to lie I thought this was going to be about Bitcoin 😅

@timothychhor9868

6 жыл бұрын

lol i agree, bitcoins!!!

@sadcat5293

6 жыл бұрын

The like he has is my like

@raniabashar7955

6 жыл бұрын

yeah! bitcoin!😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😄😄😄😂😄😆😆😆😆😆😆😆😆😁😆😆😁😁😁😆😁😊😀😆😁😆😁😆😁😆😆

For the bonus riddle, all the arrangements with a odd number of gold coins up can be made all gold and all the arrangements with an even number of gold coins facing up cannot. This is because whenever you swap, you either swap two gold and subtract the number of gold coins up the same, one gold and one silver where the number of gold coins up stays the same, or two silver where the number of gold coins goes up by two, all even differences. Since the final result must be 3, an odd number, you have to start with 3 or 1 gold coins up.

Ooooh, that was smart. This one had me totally stumped, but the solution really surprisingly simple when you see it.

well the bonus riddle is simple... any pile with an odd Nimber of gold up coins can be made into an all gold pile while piles with an even number of gold up coins can't be made into all gold up since there are an odd no. of coins in each pile

1:34 When suddenly my dad enters my room at 2 am.

@lionelprk4088

6 жыл бұрын

Gagan Bharadhwajsuchi lol

@lucaslayton3974

6 жыл бұрын

Thats disturbing that your dad would go into your room in the middle of the night

@jayfawn8478

6 жыл бұрын

why your daddy going to your room at night ???? that's weird

@gaganbharadwaj7559

6 жыл бұрын

Phương Nguyễn guessed right .

@qaisersyed110

6 жыл бұрын

Your real father or your step father?

I knew this from a magic trick using 10 or 20 cards, lets say 10. 5 would be face up and a spectator would shuffle without flipping cards, give it to you without looking, put it behind your back, count out 5 and flip that, now both decks have the same amount of face up and down

I think this is the first one of these where I’d never seen it before that I actually was able to figure it out first time

*gets the answer wrong* "Well I mean- my first guess was kinda close.."

Another riddle that I will try to solve but will be proved wrong

man i got asked this question in a final round interview for a consulting group and i had no idea what to say and even after watching this i still have no idea what's going on

The bonus riddle was easy (well, I just happened to tackle the same problem before). In odd numbered arrangement like this, you can never change which side has odd number of occurences in the sequence. Two differently sided coins will always just exchange their sides, two of the same will just change the count by two, so the odd sum will remain odd. So the only option is to see which side is shown odd number of times, either just on one coin or already on all three, then flip accordingly. - for one that has the odd one on the edge, flip the other two, - for the one that has the odd one in the middle, flip any pair you want, then follow the instructions in the above line

When you leave with the coins, make sure to HODL

@GraveUypo

6 жыл бұрын

gold is a bubble.

@doobick1898

6 жыл бұрын

SDG Danny what is a HODL

@CKTDanny

6 жыл бұрын

DooBick Use Google, my friend. This one's worth it :)

@KuZiMeiChuan

6 жыл бұрын

For the sake of others who also don't want to Google it: it is a term in the cryptocurrency world which originated from a misspelling of the word "hold" meaning to hold on to the coins in hope that they will appreciate in value.

@NothingMoreThanMyAss

6 жыл бұрын

酷子梅川 it means hold on for dear life

The end riddle is only possible if all of them are gold or one is gold.

@KingXennodia

6 жыл бұрын

Ethanol 314 only odd amounts of gold

@cadewatkin7086

6 жыл бұрын

Harry Or alternatively I said only even numbers of silver

Make more riddles please I love them!

Wizard: YOU HAVE FOUND THE GREAT TREASURE TROVE... Adventurer: hold on one second, let me count how many of these coins are silver side up.

Am I the only person that thinks the guys face looks better upside down?

Nope, I can't solve it

@ProfessorPolitics

6 жыл бұрын

Julia Budziejewska I couldn't either, but I like to think that by learning the solution we'll be able to generalize it to different but similar challenges. :)

@jestjade2520

6 жыл бұрын

Julia Budziejewska it’s 4

@JuniorEinhornCookieFreak

6 жыл бұрын

Professor Politics definitly true, I watched 10 of those videos today and in the beginning it was really hard for me and I didn't get the 3 first ones, bit now I have a streak of 4 right ones ^-^

@Stratelier

6 жыл бұрын

+Julia Budziejewska, but did you at least understand the solution?

@quietartist5082

6 жыл бұрын

Stratelier yeah, I understood solution, thanks tho

I thought of it like this: in the beginning, you have the big pile and an empty pile. The difference in silver facing coins is 20. If you take a gold coin and flip it, your new pile now has one additional silver coin and the original pile doesn't change. If you take a silver coin and flip it, your new pile doesn't change but the original pile has one less silver coin. In either scenario, you bring the difference together by 1 silver coin. So repeat 20 times to have no difference in number of silver facing coins.

0:08 I like how TED-Ed uses the German Imperial Cross as the X-marks on the map

I thought this said "dank coin" not "dark coin"

@jamesgibbs6716

5 жыл бұрын

Plot twist: The coins were actually round, painted Doritos.

@evanc4001

5 жыл бұрын

French Metroid MEWMEWMEW MEW MEEEEEEW

@cornycornrows6090

5 жыл бұрын

You have been watching too many memes boi

@riatortilla9906

5 жыл бұрын

French Metroid u have seen to many memes my boi

@chronicrandomness8092

5 жыл бұрын

Gimme dem dank coins

Watched the answer and I'm still confused...

@user-jh3kz7dp2z

6 жыл бұрын

basically, you only have to separate the coins into two piles. Given that there are 20 silvers in total, if you take 7 silver coins in the pile of 20 coins, the other pile with automatically have 13 left. It just works out that if you flip all the 20 coins in your new pile, those 7 silver coins will become gold coins, and you will end up with 13 silver coins in your pile which is the same as the other pile. Of course it works out because of the two possible interations, but you don't need to understand that to understand how it works.

@account6416

6 жыл бұрын

You take 20 gold coins and flip them all, you have 20 silver on both sides, right? Easy. But what if one of the 20 you took was silver? Now there are only 19 silver left on the original pile. But if you flip your 20 coins what do you end up with? One silver turns into gold and 19 gold turn into silver. So now you got 19 silver on both sides. Perfect!

@jacksonyolobs6094

6 жыл бұрын

what if he picked up all 20 silver in the new pile ? it wouldn't work

@Stratelier

6 жыл бұрын

+Jackson yolobs, actually it still would. If you somehow picked out all 20 silver coins from the original pile, the pile would have zero silvers, and after flipping your pile, it's now 20 gold zero silver. Zero = zero and you win. LIkewise, if you picked out 20 gold coins (no silvers), the original pile still has 20 silvers and after flipping your pile, you have 20 silvers. 20 = 20 and you still win. Basically, every gold coin you pick out of the original pile will be flipped silver side up and counted as a silver, against whatever silver coins you did not pick out of the original pile. (Any silver coins you picked out of the original pile will be flipped gold side up, and gold coins are not counted, only silver.)

Aaah, finally got one of these riddles done in under a minute

Whenever I am free I watch these small riddles for more knowledge

Usually I can't solve riddles, but this one was extremely easy

@Pedro_Le_Chef

6 жыл бұрын

*ExtRemELy EaSY*

@KatalinaKristina

6 жыл бұрын

Petran Moudatsos lol

Yes, I can. *Edit:* Actually, I once gave this riddle to someone in the comments on Ted-Ed video.

@BaBooTubeVideos

6 жыл бұрын

Which video?

@yarodi

6 жыл бұрын

Prove it.. 😋😋

Every time I’m excited about these riddles I remember... these are unsolvable math problems

I fail to see a problem I simply use my lighter to see. You see a problem I see a solution.