# Can you solve the troll's paradox riddle?

- Institution: TED
- Department: TED-Ed
- Speaker: Daniel Finkel
- Year: 2018
- Level: For everyone
- Language: English
- Subjects: Mathematics
- Source: [TED](https://www.ted.com/talks/daniel_finkel_can_you_solve_the_troll_s_paradox_riddle)
- Licence: [CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/) (Non-commercial use only, and no changed versions.)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

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. \[Directed by Artrake Studio, narrated by Addison Anderson\].

## Lectures

1. [Can you solve the troll's paradox riddle?](https://invisiblenetwork.ai/learn/ted/daniel_finkel_can_you_solve_the_troll_s_paradox_riddle/c4d67b617c45), 4 min (TED's player)