September 21, 2003
By gum, Marilyn Vos Savant is the world’s smartest person
Marilyn in Parade sets the following problem. You are in a pitch dark room. You are handed a deck that has ten cards turned face up shuffled into it. Your job is to sort the deck into two piles, each of which contains the same number of up-turned cards.
The solution involves no night-vision goggles or the ability to read through one’s fingers. It’s just so damn clever that you’re going to go D’oh when you turn the column upside down and read her answer.
Or, you could click here to get a javascript popup with the answer.