Welcome to the realm of time travel, where causality is a mere suggestion.
A man walks into a bar and orders a drink. As he's sipping his cocktail, he hears a voice say, "You're next." He looks around, but there's no one nearby who could be speaking to him.
Learn more about this paradoxical puzzleIt's Christmas, but not as you know it. Grandfather Claus, the original gift-giver, is now the one being given gifts.
Read about the reverse of this festive traditionA ship is made of 100 wooden planks, each one replacing one at a time. Is it still the same ship? Or is it just a bunch of planks in the ocean?
Dive into the sea of questions surrounding the ship's identity