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

"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 ...

Math Puzzle: In this math puzzle, the final number is missing. Do you have the most intelligent brain that can solve the math puzzle in 11 seconds? Test your math skills now! Math puzzles are a good ...

Four Cambridge math students in the 1930s wanted to know if you could fill a square with smaller squares, each a different size. They solved it by pretending the squares were electrical resistors.

A geometry puzzle first posed in 1966 has baffled mathematicians for decades. Known as the moving sofa problem, it asks for ...

A red circle is inscribed inside a blue square. The arrangement leaves gaps in the square’s four corners, two of which are filled with smaller circles that just barely touch the big red circle and the ...