"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 ...

Want to stretch your kids' critical thinking abilities? Logic puzzles are great problem-solving activities that teach logical reasoning, organizational skills, and critical thinking. Our logic puzzles ...

Will there be another puzzle craze after sudoku? Perhaps kakuro? What about nurikabe? If so, chances are it will spring from a Japanese company called Nikoli, run by the self-proclaimed godfather of ...

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 ...