Impress the groupchat with one of these tricky brain teasers ...

A hidden envelope is camouflaged in this snowy skiing image. Can you spot it in 15 seconds? Challenge your visual sharpness ...

Brain teasers are the perfect way to give your mind a workout, and when it comes to maths brain teasers, the challenge is ...

We're huge fans of riddles and puzzles around here, so it's no shock that a brain teaser making the rounds on the internet — "How many triangles do you see?" — caught our eye. But we didn't expect it ...

If you enjoy solving brain teasers that test your logic and observation skills, this tricky tree-cutting puzzle is perfect ...

Brain teasers are a great way to boost your cognitive abilities. Like the old saying goes, "use it or lose it," and studies show that games that specifically engage your brain can help improve your ...

Here are three shoppers in a queue. Who do you think has stolen from the store? Can you spot the thief in this picture in ...

"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 ...