Every interview question is an attempt to gather information to inform this hiring decision. Many interviewers will also specifically ask you to make your case with one of these questions:
Why should I hire you?
Why are you the best candidate for the job?
Why are you the right fit for the position?
What would you bring to the position?
To close the deal on a job offer, you MUST be prepared with a concise summary of the top reasons to choose you. Even if your interviewer doesn’t ask one of these questions in so many words, you should have an answer prepared and be looking for ways to communicate your top reasons throughout the interview process.