Brain teasers are one of the best puzzles to test the sharpness of the brain. Readers need to think outside the box for solving brain teasers. These challenges are presented in the form of a picture ...

Optical illusions and visual puzzles are all the rage these days due to their ability to enthrall social media users. These brain teasers improve cognitive functions and are a fun way to pass the time ...

"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 ...

Only sharp minds can solve this matchstick puzzle in 21 seconds. Move one stick, think creatively, and see if you can find ...

Think you are smarter than most? This viral fruit math puzzle is stumping 90% of people online. You have just 11 seconds to ...