puzzler Synonyms

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