1 synonym for Puzzles

puzzles, enigmas, conundrums, brainteasers, mysteries, problems, challenges, quandaries, teasers, stumpers, perplexities, posers, brain-twisters, cryptograms, anagrams, rebuses, charades, paradoxes, dilemmas, head-scratchers, mind-benders, word games, logic puzzles, crosswords, jigsaw puzzles, matchstick puzzles, lateral thinking puzzles, logic problems, number puzzles, visual puzzles, cryptic puzzles, trivia questions, quiz questions, brain games, mental exercises, cognitive challenges, intellectual puzzles, thought experiments, brain workouts, mind games, brain challenges, brainteasing questions, tricky questions, tricky problems, tricky puzzles, tricky riddles, tricky enigmas, tricky conundrums [x]