Asking candidates, “Why are you interested ... these commonly asked questions ahead of time, your preparedness and well-thought-out answers will help you shine in the interview.
You also have to be ready to answer common interview questions such as "Why do you want to work for us?" This question can be difficult to answer if you don't prepare for it. Read on for examples ...
There is a whole bunch being asked with this single interview question of “why should we hire you.” And interviewers are looking at a whole bunch of different angles with your answer(s).