It takes a lot of time and effort to get invited to a job interview. Don't blow your chances by being misunderstood by the interviewer. Not many people are aware that giving one word answers to questions, substantially increases your chances of conveying the wrong impression.
when an interviewer asks what does he wants to know abt the company, then a polite "NO" from u wont do any good to u.
Before going for interview ,u should have knowledge abt company
(for which u r appearing),so that u can ask good and impressing questions!