One day, we may have the legendary puzzle creator Will Shortz to thank for defending our brains against the ravages of aging. Spending extended time with a crossword or number-based puzzle, scientists ...

Here’s a classic brainteaser that I don’t like. What’s the next number in this sequence: 1, 11, 21, 1211, 111221, …? The answer is 312211, because each number describes the digits in the number that ...

Get started solving the classic number puzzle with tips from some of the best solvers in the world. By Isaac Aronow Everybody can solve a hard Sudoku. Maybe not right now, maybe not without some ...

Long before puzzles appeared in newspapers, apps or puzzle books, humans were already puzzling. The moment early humans began ...