Albert Einstein was intrigued by a simple puzzle: an old car must travel 2 miles at an average of 30 mph. The twist? Its structure makes the solution impossible. Can you solve it?

Maps are to open worlds what the buns are to a hamburger: the element that's taken for granted but holds the whole thing ...

"Nothing travels faster than light," you've probably heard before. Indeed, according to Einstein's theory of relativity, ...