"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Researchers at Duke University monitored participants’ brain activity while they completed simple math ...

This brain teaser involves figuring out the equation which is a test of logic and creative thinking. By carefully examining ...

Have you ever seen two pictures that look the same, but something feels different? That’s what a “spot the difference” puzzle is all about. These puzzles test how good you are at noticing small ...

A small question can open a big door in a child’s mind. Brain teasers do exactly that. They look easy at first, but they ...

Think you have sharp reasoning skills? Solve this math puzzle quickly and discover if you can spot the hidden pattern.

IQ tests are simple brain teasers that have become one of the popular puzzle games on the web. These puzzles are one of the best ways to measure cognitive abilities and mental sharpness. IQ tests ...

Rail Rescue Puzzle Lines launches on Xbox and PC, offering over 1000 logic puzzles as players rebuild railways, solve ...