Mechanical puzzles

How Many of These Stupid-Hard Puzzles Can You Solve?

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Alicia and Bruno are each given a different natural number in secret (1 is the smallest natural number, 2 is the second smallest, and so on). They are then tasked with guessing which of them has the larger number. The following conversation ensues: Alicia: I don’t know who has the bigger number. Bruno: I don’t … Read more

Gizmodo Monday Puzzle: Impossible Geography

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Image: Photo: Shutterstock Graphics: Gizmodo Here’s a mind-blowing geography fact: The northernmost part of Brazil is closer to Canada than it is to the southernmost part of Brazil. Facts like this partly speak to truly unusual geographical features of Earth (like Brazil’s massive land area) but also to how warped our perception can be of … Read more