35 entries under conundrum topic. ×

2
tough nut to crack(noun, expression, idiom, difficulty, secret)
1
challenge(noun, difficulty, issue, question, subject)
1
chiller(noun, difficulty, question, secret, puzzle)
1
cliffhanger(noun, difficulty, question, secret, puzzle)
1
doubt(issue, question, subject, problem, puzzle)
1
grabber(noun, difficulty, challenge, doubt, question)
1
query(noun, dispute, challenge, doubt, question)
1
sphinx(noun, difficulty, question, secret, puzzle)
1
stickler(noun, difficulty, challenge, doubt, question)
1
teaser(noun, difficulty, challenge, doubt, question)
1
twister(noun, difficulty, challenge, doubt, question)
0
bugaboo(noun, challenge, question, puzzle)
0
cliff-hanger(noun, challenge, question, puzzle)
0
illustration(noun, challenge, question, puzzle)
0
sixty-four thousand dollar question(noun, expression, idiom, challenge, question)
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APASmart Define. (2016). mystery thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/mystery/thesaurus/synonyms
ChicagoSmart Define. 2016. "mystery thesaurus" https://smartdefine.org/mystery/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, mystery thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/mystery/thesaurus/synonyms>.
MLASmart Define. "mystery thesaurus" 31 March 2016. Web. 29 September 2026. <https://smartdefine.org/mystery/thesaurus/synonyms>