This probability problem seems so simple ... but can you actually solve it? Hint: You might want to use Google Earth.

A Quora thread of difficult SAT math questions included one described as the "meanest test problem ever." Can you figure it out?

The Monty Hall Problem is a famous probability problem named for the original host of “Let’s Make A Deal." The controversy began in 1990 when Marilyn vos Savant posed the question in her ...