"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 ...

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

An optical illusion is a visual phenomenon where the brain misinterprets what the eyes perceive, creating a false or ...

NYT Connections: The New York Times’ daily word game, Connections, rolled out its Thursday, April 23 puzzle, and it turned ...