There are 36 cards labeled with the numbers 1 through 36 and then placed face down on a table. If four cards are revealed one after the other, what is the probability that each card’s number is larger ...

A man went on an airplane ride. Unfortunately, he fell out. Fortunately, he had a parachute on. Unfortunately, the parachute did not open. Fortunately, there was a haystack below him, directly in the ...

Editor’s Note: Published in 1957, this article comes from Martin Gardner’s legendary Scientific American column Mathematical Games. Read more in our special digital issue, Fun and Games. A paradox is ...