The Great Pyramid of Giza is often treated as a monument of stone, but it also functions as a monument of numbers. I see at ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." When 2D puzzles are no longer exciting, 3D brain teasers are the way. These handheld puzzles require ...

If you are looking for engaging experiences that aren’t overwhelming, try the plethora of puzzle apps available. There are ...

A group of airplanes is based on a small island. The tank of each plane holds just enough fuel to take it halfway around the world. Any desired amount of fuel can be transferred from the tank of one ...

Martin Gardner’s Mathematical Games column in Scientific American fascinated and mystified readers for decades—and his legacy continues to bring mathematicians, artists and puzzlers together. Gardner ...