(And adults, of course!) These math puzzles test your brain and critical-thinking skills and provide some constructive, educational fun. Math riddles and puzzles come in plenty of different varieties.

Experience math in a whole new way. We'll play fun and challenging problem-solving games and puzzles from around the world, including Ancient China and Egypt, Europe, Asia, Africa and the Americas. We ...

It's not as hard as it looks! We asked a mathematician to walk us through the steps so you can solve this problem—or any ...

An old calculator uses a seven-segment display, in which numerals are represented by different patterns of vertical and horizontal line segments. But the device is faulty and no longer shows any ...

Prove that, at a recent convention of biophysicists, the number of scientists in attendance who shook hands an odd number of times is even. The same problem can be expressed graphically as follows ...