It's a Quandary, and I don't know which is the right answer.
Still his quandaries have a human interest.
I'm in a Quandary, gentlemen.
They were in that same Quandary.
What a Quandary you have left me in?
I like Quandary, and it fits the OPs requirements better than brain-buster.
I suggest you put in a definition, source and link for Quandary.
This is the Quandary facing the Chairman of Cricket Australia this morning.
When a decision can be reduced to right versus wrong,
we are unlikely to experience it as a Quandary.
Actually disagree, since you would be put in a Quandary whereas"brain buster" fits the use exactly,
but ask and ye shall receive.
These questions and many other bizarre quandaries will be answered in this really fascinating list of 120
amazing facts about your very own body!
In other words the online dating industry is keenly interested in using the latest technology to, or at least appear to,
solve the Quandary of chemistry.