"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 Brain teaser is a type of puzzle, which is a short, playful puzzle designed to stretch your mind and make you smile. It ...

You have an IQ above 140 if you can solve this math puzzle. Test your problem-solving skills and intelligence with this IQ ...

Brain training games are games that allow players to complete tasks that practice specific cognitive skills that exercise their memory, attention span, logic, and fast thinking. Brain training ...

A brain teaser is a type of puzzle which is used for fun and tricky games, and a challenge to our minds to solve different ...

Welcome to New Scientist‘s devilishly difficult Christmas puzzle, set by Charlie Wheeler at Ultimate Quest. This year, your task is to work your way through the exhibits of a mysterious museum, ...

Add Yahoo as a preferred source to see more of our stories on Google. Here, experts share the actionable steps you can take to protect your brain and keep it sharp for as long as possible. Games such ...

This brain teaser challenges readers to locate an inverted '64' hidden among a series of '94's within a strict 7-second time limit.

Forbes contributors publish independent expert analyses and insights. Providing tools and resources to start, grow and manage your business. Are you one of the millions of people who start or end ...