Math brain teasers are fascinating puzzles that challenge your logical ... The idea behind the brain teaser is to figure out the relation between the numbers in all the equations.

logic and number puzzles by Fraser Simpson, creator of The Globe and Mail’s cryptic crossword. You can play the giant crossword online below. To play at home, print off the PDFs below or pick up ...

An annual tradition in Cleveland is The Plain Dealer’s holiday crossword puzzle, which fills an entire newspaper page plus much of a second. People tell us their families have made the puzzle ...

Logic puzzles are almost as old as human civilization itself, as is evident by the sheer volume of them that appear in ancient tombs within video games and films. Challenging oneself to a test of ...