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 ...

Take the pressure off of problem-solving with engaging thinking games that encourage students to work together to find ...

ERR (24A: Dip your paintbrush in your coffee, say) AD SLOGAN (42D: "Red Bull Gives You Wiiings," e.g.) INSPO (54D: Creative fuel, for short) CLOSING NUMBER: The word at the end (i.e. CLOSING) of each ...

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

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.

All the Latest Game Footage and Images from Number Slide Puzzle Number Slide Puzzle is a sliding puzzle consisting of a frame of numbered square tiles in random order, There is one empty space in the ...