The middle two cards add up to an even number. Neither of them ... And one last logic puzzle for adults: Can you figure out who won the game? The Reds, the Grays, the Blues, and the Blacks have ...

The following puzzle devised by Lewis ... What is the least number of draws that are required, with a blindfold on, in order to guarantee a matching pair of black or white gloves?

The Shipwreck Arcana offers a cooperative math-based challenge with hidden number ... deduction game where players brew potions by deducing ingredients and potency. Logic puzzles are almost ...