puzzler Synonyms

mystifier teaser puzzle stumper why vexer twister troubler tickler snag sphinx problem fine question jigsaw jigsaw puzzle tough one puzzles awkward problem Teasers staggerer sixty-four dollar question question mark brainteaser closed book brain-teaser puzzle out secret riddler riddle enigma embroiler dilemma difficulty cryptogram crux conundrum confounder charade catch floorer grabber knot regulator question quandary puzzlement poser perplexity paradox mystery