conundrum

IPA: kʌnˈʌndrʌm

A difficult question or riddle, especially one using a play on words in the answer.
A difficult choice or decision that must be made.

Examples of "conundrum" in Sentences

"We ran into what we called the conundrum," he said.
Ancelotti poses a title conundrum as the race hots up
This conundrum is as old as Ardipithicus – 4. 4million years old.
The global forex conundrum is morphing into a trade dilemma of sorts.
The very conundrum is a sign of how far this nation sunk. mikey Says:
McDonnell's conundrum is that changing the complex proposal to satisfy one group is likely to cost support from another.
More broadly, a conundrum is any problem where the answer is very complex, possibly unsolvable without deep investigation.