Add Yahoo as a preferred source to see more of our stories on Google. 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 ...

"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 graphic artist who designs seek-and-find puzzles is testing everyone's attention to detail with another brain teaser — and this time the focus are watermelons. Gergely Dudás, from Budapest, Hungary, ...

Pop quiz: you have 15 minutes to spare while you wait for your turn in the dentist's office -- now what? You're already caught up on your Facebook feed and the front page of Reddit looks the same as ...

Spot the Hidden 98 Among the Zig-Zag Random Numbers in this Visual Brain Teaser: The above image is a visual brain teaser, ...