What they did with them seems to be an unanswered question.

But why he had brought her at all was a question, as yet, still unanswered.

Just move on before I think of some unanswered questions.

All I had was a lot more unanswered questions than before.

I can stand just so many unanswered questions at one go.

And then he left her without any more words, but with a number of unanswered questions.

I still have so many unanswered questions, especially about my mother.

I don't want her kids growing up with their lives full of unanswered questions.

The study on the law students left two unanswered questions.

But we still have a few unanswered questions, like why he came here looking for his father, and where the woman is these days.