She spoke about it at length and Richard asked intelligent questions.

No, Jake didn't know enough to even ask an intelligent question.

Not a particularly intelligent question, but it would serve to occupy him while I thought of a better one.

The problem is, I don't even know enough to ask an intelligent question.

And, with the things he didn't know, he still knew enough about them to ask intelligent questions.

"An intelligent question from a student makes you articulate the answer."

He asked several questions, and they were all intelligent questions.

How are you going to answer anybody's intelligent questions if your mind is mired in 19th century political analysis?

His intelligent questions about where she'd look for a job.

It is important that you ask intelligent and relevant questions.