Conundrum – A difficult or confusing problem
The convict undid the drum (conundrum) and ran off with it, which left a difficult problem for the drummer who was supposed to perform live in an hour.
Examples of conundrum in a sentence
I am stuck in the middle of nowhere without my phone, it's a real conundrum!
There is not a single maths conundrum that I can't solve.
Unsettled by a romantic conundrum, Rachel couldn't sleep.