This is your final opportunity to set a great impression, and your interviewer is curious about what the questions you've saved for the end will say about how well you've prepared for this moment. So this is your chance to position yourself as a memorable candidate by coming up with some interesting questions that will set you apart from the other candidates. It is also your last chance to clear anything up for the interviewer that might increase your chances of winning the job or moving on to the next round, such as by asking if there is any reason they might not consider hiring you based on your responses, or if there are any issues you can clear up for them.