http://www.businessinsider.com/questions-to-ask-at-end-of-job-interview-2016-4

It’s important to remember that every interview is a two-way street.

You should be assessing the employer just as much as they’re assessing you because you both need to walk away convinced that the job would be a great fit.

So when the tables are turned and the interviewer asks, “Do you have any questions for me?” take advantage of this opportunity. It’s the best way to determine if you’d be happy working for this employer, and whether your goals are aligned with theirs.