High quality questions that you’ve thought about will prompt better answers. You’ll be surprised what people will come out with if you merely work a bit with them and give them opportunities to answer something. Silence is often met with silence.
Like two actors on stage there’s a shared responsibility there to get the best out of each other. Interviewing isn’t easy by any means but a little curiosity can go a long way to finding out what you share in common and what makes someone tick.