| intriguing conundrum(noun, expression, challenge, usage, mystery) |
| known conundrum(noun, expression, challenge, usage, mystery) |
| legal conundrum(noun, expression, challenge, usage, mystery) |
| linguistic conundrum(noun, expression, challenge, usage, mystery) |
| literary conundrum(noun, expression, challenge, usage, mystery) |
| logical conundrum(noun, expression, challenge, usage, mystery) |
| major conundrum(noun, expression, challenge, usage, mystery) |
| mathematical conundrum(noun, expression, challenge, usage, mystery) |
| mere conundrum(noun, expression, challenge, usage, mystery) |
| metaphysical conundrum(noun, expression, challenge, usage, mystery) |
| methodological conundrum(noun, expression, challenge, usage, mystery) |
| obvious conundrum(noun, expression, challenge, usage, mystery) |
| old conundrum(noun, expression, challenge, usage, mystery) |
| particular conundrum(noun, expression, challenge, usage, mystery) |
| perennial conundrum(noun, expression, challenge, usage, mystery) |
| perplexing conundrum(noun, expression, challenge, usage, mystery) |
| philosophical conundrum(noun, expression, challenge, usage, mystery) |
| political conundrum(noun, expression, challenge, usage, mystery) |
| psychological conundrum(noun, expression, challenge, usage, mystery) |
| enigma(noun, puzzle, mystery, riddle) |