73 entries under noun topic. ×

1
knot(puzzle, riddle, enigma)
1
mind-breaker(question, puzzle, riddle)
1
mindboggler(question, secret, puzzle, subtlety)
1
mystification(question, secret, puzzle, obscurity)
1
occult(question, secret, puzzle, subtlety)
1
oracle(question, secret, puzzle, subtlety)
1
pun(question, puzzle, riddle)
1
query(challenge, question, puzzle, example)
1
question(difficulty, secret, puzzle, obscurity)
1
rune(question, secret, puzzle, subtlety)
1
secrecy(difficulty, question, secret, puzzle)
1
sphinx(difficulty, question, secret, puzzle)
1
stickler(difficulty, challenge, question, secret)
1
subtlety(difficulty, question, secret, puzzle)
1
thriller(question, secret, puzzle, subtlety)
1
toughie
1
twister(difficulty, challenge, question, secret)
1
whodunit(question, secret, puzzle, subtlety)
1
why(difficulty, question, secret, puzzle)
0
bugaboo(challenge, question, puzzle, example)
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APASmart Define. (2015). brainteaser thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/brainteaser/thesaurus/synonyms
ChicagoSmart Define. 2015. "brainteaser thesaurus" https://smartdefine.org/brainteaser/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, brainteaser thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/brainteaser/thesaurus/synonyms>.
MLASmart Define. "brainteaser thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/brainteaser/thesaurus/synonyms>