Gregory Treverton, a national security expert at RAND Corporation, famously distinguished between two types of problems, puzzles and mysteries. He was describing the modern challenges faced by the ...

Many companies from Wall Street to Silicon Valley are now using puzzles and riddles in interviews as a way to gauge the problem-solving abilities of potential candidates. I thought I liked this ...

Math puzzles test readers' critical thinking skills by challenging them to solve problems. Math puzzles can boost analytical ...

This puzzle game is perfect for you if you enjoy challenges that test your logic and patience. But be warned. It’s trickier than it seems. Do you have what it takes to crack it? Only a few have ...

"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 ...