If you have 30 white socks, 22 black socks and 14 blue socks scattered across the floor in the dark, how many would you have to grab to get a matching pair?

Why this works

The riddle plays on the concept of the "pigeonhole principle," which states that if you have more items than containers, at least one container must hold more than one item. In this case, the colors of the socks are the "containers": white, black, and blue. By grabbing 4 socks, you guarantee that at least two of them will be of the same color, since there are only three colors available. This clever twist on probability ensures that no matter how you pick, a matching pair is inevitable!