Can you solve the troll’s paradox riddle? - Dan Finkel

You and your brother have discovered another realm and set off exploring the new wonderful world. Along the way, you see a troll catching creatures in an enormous net. The troll agrees to release the creatures if you can come up with a statement that is both truth and false. Can you come up with the correct sentence and force the troll to release them? Dan Finkel shows how.

Lesson by Dan Finkel, directed by Artrake Studio.

Thank you so much to our patrons for your support! Without you this video would not be possible! Chris, Megan Douglas, Barbara Smalley, Filip Dabrowski, Clair Chen, Vik Nagjee, Karen Goepen-Wee, Della Palacios, Bah Becerra, Marc Bilodeau, Ruby Solorzano, Ivan Tsenov, Claudia Mayfield, Yankai Liu, Duo Xu, Joy Love Om, Gi Nam Lee, Shawn Quichocho, Anika Westburg, Barun Padhy, Devin Harris, Tony Trapuzzano, Jason Weinstein, Kris Siverhus, Alexander Walls, Annamaria Szilagyi, Morgan Williams, Abhijit Kiran Valluri, Mandeep Singh, سلطان الخليفي, Marylise CHAUFFETON, Marvin Vizuett, Jayant Sahewal, Quinn Shen, Elizabeth Cruz, Elnathan Joshua Bangayan, Mullaiarasu Sundaramurthy, Jose Henrique Leopoldo e Silva, Dan Paterniti, Jerome Froelich, Tyler Yoshizumi, Martin Stephen, Justin Carpani, Khalifa Alhulail, Tejas Dc, Benjamin & Shannon Pinder, Srikote Naewchampa, Ex Foedus, Exal Enrique Cisneros Tuch and Ana Maria.

[zhang]

When you realize a troll keeps its promises better than you...

[Pralius_]

You can say that the poison gas is in the false chest.

If the gas is indeed in the false chest, the statement is true and the true chest containing the gold will open. If it is false, then the gas is in the true chest and will not be released but the false chest containing the gold will open.

[get_dqstrqyed]

For the bonus riddle: you can say “the chest that opens if I tell lies has the poisonous gas in it.” If the statement is correct, then the truth box will open, giving you the treasure. If the statement is incorrect, the false box will open, giving you the treasure.

[leo-hao]

Ted Ed: Say something that is both true and false.
Me: Ozo.

[DavesDime]

"If you say *something true*, I'll release all of these creatures. If you say *something false*, than I'll release your brother."

"Something true, something false."

[severalpigeons]

Troll: you can only say one sentence
Conjunctions: I'm about to end this man's whole career

[meepdoesedits]

Can we take a moment to appreciate how the brother is reacting to being held captive by the troll and having his life on the line

[hideousred]

Me, panicking: Free My Brother!
Troll: Ah dammit, seems I have been outsmarted

[Laufburscheu]

Troll: "OK, I release the brother and the paradoxes. But I haven't said anything about you."
(Sounds of grabbing and eating.)

[Vectorlarity]

“You have a loving girlfriend”
“That is false, I will release your brother”
*walks away crying*

[raducora]

This should also work with a statement that changes it's truth value after a specific event. Something like "you are holding the paradoxes captive". At first, this is true, so the troll must release the paradoxes. But then the same statement becomes false, so the troll must also release your brother.

[clarahoward]

step one: confirm with the troll that you both have green eyes
step two: feed your brother to the unstoppable blob
step three: feed the troll to the blob and summon mjolnir

[natalua]

Say “the gold is in the true chest”

If the statement is true (meaning that the gold IS in the true chest), the true chest will open and give you your gold.

If the statement is false (meaning that the gold is in the false chest), the false chest will open and give you your gold.

[bonniejunk]

I want the morton salt girl to step on me

[ianqiao]

Me: "You will free my brother!"

Troll: "Ozo"

[tposecat]

“As the troll stomps off in anger”
The troll: *crying like a baby but walking away taking high steps*

[bongoe]

TedEd: The troll hates paradoxes. So you cant say a paradox.
Me: well im stumped.
TedEd: the answer is a paradox
Me: Ah gets me every time.

[novaelite_]

I realized an answer that might be right: say "The treasure is in the chest that opens from a truth"

[avs]

0:22 When you must take back your sentence "When pigs fly"

[brianmcclenahan]

In a twist of a paradox, the troll isn't releasing your brother until after the statement is false. It only becomes true when the statement was false but not at the same time.