"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 ...

A new study has documented the abilities of individual wild Asian elephants to access food by solving puzzles that unlocked storage boxes. It is the first research study to show that individual wild ...

Some people dreamed of puzzles, some didn’t, some were lucid, some were not. Interpreting the data proved tricky, but one ...