You and your team have crash-landed on an ancient planet. Can you appease the three alien overlords who rule it and get your team safely home? Created by logician Raymond Smullyan, and popularized by his colleague George Boolos, this riddle has been called the hardest logic puzzle ever. Alex Gendler shows how to solve it.
View full lesson here:
https://ed.ted.com/lessons/can-you-solve-the-three-gods-riddle-alex-gendler
Subtítulos en español.
Duración 4:40.
The city has just opened its one-of-a-kind Faberge Egg Museum, with a single egg displayed on each floor of a 100-story building -- and the world's most notorious jewel thief already has her eyes on the prize. Can you help the thief formulate a plan that will drop the most expensive egg she can get safely into her waiting truck? Yossi Elran shows how.
View full lesson here:
https://ed.ted.com/lessons/can-you-solve-the-egg-drop-riddle-yossi-elran
Subtítulos en español.
Duración 4:30.