I have been interviewing for a few years.
Take in notes, or at least the key points that you want to talk about. Do NOT read out a page full of notes!
You can ask for the question to be repeated. The interviewer often rephrases the question – a small advantage to you.
also, it gives you time to think and compose your answer.
If the question does not make sense, or if it is ambiguous, ask for clarification.
I have worked as a trainer, so sometimes I ‘present a training course on the topic’ Not a good idea.