One day, Bill and Tom went to a restaurant for dinner. When the waiter took out two steaks, Bill quickly picked out the bigger steak for himself. Tom wasn’t happy about that: “When will you learn to be polite?” Bill: “If...

Have you ever looked at a picture that seemed incredibly easy, only to discover it was much trickier than you expected? That is exactly what makes visual puzzles so much fun. They look simple. They seem like they should take only a...