"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 ...

Discover 5 puzzles that strengthen memory, focus, and reasoning. From Sudoku to crosswords, these brain games help keep your mind sharp.

Picture puzzles give your brain a fullpower brain workout. Picture puzzles are a great mental exercise for improving visual-spatial reasoning, developing attention to detail, strengthening memory, and ...