41 entries under question topic. ×

33
conundrum(noun, trouble, difficulty, informal, challenge)
29
enigma(noun, trouble, challenge, puzzle)
28
riddle(noun, trouble, challenge, puzzle)
18
mystery(noun, trouble, challenge, puzzle)
12
secret(noun, trouble, challenge, puzzle)
9
problem(noun, trouble, challenge, puzzle)
8
puzzle(noun, trouble, challenge, mystery)
6
puzzlement(noun, trouble, challenge, puzzle)
5
poser(noun, trouble, challenge, puzzle)
4
mystification(noun, trouble, challenge, puzzle)
4
paradox(noun, trouble, challenge, puzzle)
2
difficult problem(noun, puzzle, riddle)
2
dilemma(noun, trouble, challenge, puzzle)
2
stumper(noun, puzzle, dilemma, complexity)
2
teaser(noun, puzzle, dilemma, complexity)
2
twister(noun, puzzle, conundrum)
1
bewilderment(noun, puzzle, conundrum)
1
brainteaser(noun, puzzle, riddle)
1
charade(noun, puzzle, dilemma, complexity)
1
complexity(noun, puzzle, dilemma, quandary)
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APASmart Define. (2016). brain-teaser thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/brain-teaser/thesaurus/synonyms
ChicagoSmart Define. 2016. "brain-teaser thesaurus" https://smartdefine.org/brain-teaser/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, brain-teaser thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/brain-teaser/thesaurus/synonyms>.
MLASmart Define. "brain-teaser thesaurus" 1 April 2016. Web. 22 September 2026. <https://smartdefine.org/brain-teaser/thesaurus/synonyms>