There is no single answer to the question that was put to us.

There is, in fact, no single answer to this question.

I don't have a single answer to any of these questions.

But he had one single answer to all problems - violence.

Then I saw the single obvious answer to two problems at one time.

During the entire ten minutes, there was not a single answer to his call.

So many questions and, as yet, not a single answer.

"Therefore you don't have a single answer to your questions?"

I don't believe there is a single answer to this problem.

Of course there is no single answer to this question.