A variation of a puzzle called the “pick-up sticks problem” asks the following question: If I have some number of sticks with random lengths between 0 and 1, what are the chances that no three of ...

A recent challenge that went viral online has math lovers excited ... US states to retire in 2025 Players need to guess the next number in the series. Hint: The digits in the sequence are squares of ...

Some of the most satisfying number puzzles require little mathematical know-how. In fact, cracking the one below calls for thinking that is quite nonmathematical. I don’t know where or when I first ...

A brain teaser is a kind of engaging mental exercise. The purpose of this challenge or riddle is to force you to look at things critically and creatively, often in ways you're not familiar with. A ...