- Definitions|1
- Thesaurus|67
- Abbreviations|0
| pun(noun, question, puzzle, riddle) | |
| quandary(noun, question, puzzle, dilemma, complexity) | |
| question(noun, puzzle, conundrum) | |
| rebus(noun, question, puzzle, dilemma, complexity) | |
| strait(noun, question, puzzle, dilemma, complexity) | |
| tiring-irons | |
| tricky problem | |
| challenge(noun, question, puzzle, mystery, conundrum) | |
| charades | |
| clue | |
| crossword | |
| cryptogram(noun, question, puzzle, conundrum) | |
| difficult puzzle | |
| hangman | |
| jigsaw | |
| mental puzzle | |
| perplexity(noun, question, puzzle, conundrum) | |
| quiz | |
| quizmaster | |
| stickler(noun, question, puzzle, conundrum) |
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| APA | Smart Define. (2016). brain-teaser thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/brain-teaser/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "brain-teaser thesaurus" https://smartdefine.org/brain-teaser/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, brain-teaser thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/brain-teaser/thesaurus/synonyms>. |
| MLA | Smart Define. "brain-teaser thesaurus" 1 April 2016. Web. 24 September 2026. <https://smartdefine.org/brain-teaser/thesaurus/synonyms> |