“Puzzles are not a waste of time. Doing puzzles can make us better thinkers, more creative, more incisive, [and] more persistent,” argues journalist and avid puzzler Jacobs (The Know-It-All) in this ...

Brain teasers have always been a favourite pastime for people who enjoy testing their wits. From riddles to optical illusions, these puzzles have a unique charm that keeps the mind engaged. Now, a ...