"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 ...

We are hardly ever consciously aware that we use logic to solve everyday problems. But what is logic? Is the logic used to prove theorems in mathematics the same kind that we use for our practical ...

While the world of logic puzzles is vast, finding your niche can make you a stronger solver. By Isaac Aronow The rich and complex philosophical concept of logic is the engine that drives an ...

Some of the oldest puzzles in history involve “figuring out” people’s ages. They are found in ancient texts across cultures, demonstrating a long-standing fascination with imaginative and logical ...

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