Emma R. Hasson is Scientific American’s Games ace and a Ph.D. candidate in mathematics at the City University of New York ...

A functioning Gizmo would never lie and call a good Gizmo broken, so if one declares the other to be malfunctioning, they can’t both be good. Either one of the two Gizmos is functioning and correctly ...

A math puzzle is a type of brain teaser that tests the reader's critical thinking and problem-solving skills by challenging ...

Math is not everyone’s favorite, understandably. Hours of math homework and difficult equations can make anyone sour on the subject. But when math problems are outside of a school setting, there’s no ...

Jeff Smith's Math Puzzle for March 20, 2026 - Quadrilateral redux: Anything worth doing is worth doing to wretched excess.

You’re hosting a wedding at your home next summer, and the happy couple asked you to decorate the four gardens on the grounds ...

"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 ...

All the Latest Game Footage and Images from Triz: Sacred Geometry Puzzles Disentangle the color web of mysterious geometric interweaving and discover fascinating hypnotic shapes. Distract from reality ...