Questions for Interviewer?

At the end of every interview I’ve been on (mostly for internships) the interviewer always asks if I have any other questions - after they’ve pretty much fully explained everything I feel like I need to know. I feel dumb and losing a chance at “question time for the interviewer” by saying no, but I can’t think of any good ones to ask. Usually I ask about their experiences in the field, citing that I want to learn as much as possible. But then I’m out. Anyone have any good/helpful questions to ask the interviewer?