Stumper

1. (n.) One who stumps.

2. (n.) A boastful person.

3. (n.) A puzzling or incredible story.

Thesaurus Entries

Chinese puzzle, baffling problem, brain twister, campaigner, crossword puzzle, crux, electioneer, enigma, enigmatic question, floorer, jigsaw puzzle, knot, knotty point, mind-boggler, mystery, nut to crack, perplexed question, perplexity, poser, problem, puzzle, puzzlement, puzzler, question, question mark, sixty-four dollar question, sticker, stump orator, stump speaker, tough proposition, vexed question, whistle-stopper, why