Do you have any questions for me?

When an interviewer asks if you have any questions, you do not want to reply that you don't, which shows a lack of interest in their company. Respond with a question not covered in the job post or during your interview, such as when they might be filling the position or when you might hear back from them. Or you may have a question about the work hours or another question that was not found when you researched the company.