"But there are still a lot of questions need answering."

It is not the sort of question that really needs answering.

And even, if the question is hypothetical now, it still needs answering.

The biggest question that needed answering was why did the reporters want all these numbers and what were they doing with them?

"It's just some questions that need answering, nothing that'll get you into trouble."

And Diana had a lot of questions she needed answering.

"There's a lot of questions need answering, and we think you can help us."

Because it needed answering, and the answer seemed to be his own job.

I've been doing a lot of research, discovering more questions that need answering.

There are a number of high technology problems that need answering.