How do you answer the question 'Why do you think you are right person for this job'?

Because I have the right experience and skills to do this. Be specific about your skills and successful experience and about why they're such a perfect fit for this job. For example, "I've always completed my assignments with high quality and ahead of schedule and that's what you really need here" or "I have Excellent analytical skills and I work very well with people and that combination really fits what you need here."