Brain teasers are riddles or puzzles that use logic and reasoning to solve. They are a popular pastime for many people, young and old alike. Some synonyms for brain teasers include mind benders, enigmas, brainteasers, mental challenges, and puzzles. Mind benders are complex riddles that require you to think creatively and logically to solve. Enigmas are mysteries or puzzles that cannot be easily explained or understood. Brainteasers are puzzles or problems that require you to use your intellect and ingenuity to solve. Mental challenges are exercises that test your intelligence and ability to think critically. Puzzles are games or problems that require you to use your analytical skills and problem-solving abilities. Whatever the synonym used, brain teasers are always a fun and challenging way to exercise your mind.