For questions about the company, just ask some questions that relate to your job, such as what are normal business hours, what is the dress code if any, and so on. As for why you deserve a certain salary, there is no one answer for this question. You should think about why the company should hire you. Do you have a good education, or lots of prior work experience in this kind of job? Are you a dedicated and skilled worker?

I recommend you don't really discuss money until the final interview. If they bring it up, explain that they know the role better than you, so they should have an idea what it is worth. You might like to mention what salary you are on now, and whether you will be seeking an increase.

Research the company and the role – look at the company’s website or other published material. Going to the interview knowing nothing about the company to whom you are talking is a big mistake! You can always ask whether they are planning to open up offices in another city, then say that you are prepared to travel for promotion within the company.

hey,Richard,i mean that the interviewer asks why do you think you deserve the salary!

When an interviewer asks you if you want to ask a question about the company, what should you ask (what question(s) should you ask / how should you reply). The interviewer may also ask, "Why do you require this salary?" Note: I cannot imagine an interviewer asking you "why you require this salary" unless the interviewer asked you what salary you wanted. Usually the company would tell you what the salary was. Did you mean: "Why do you need/want this job?" or "What salary do you expect/want/require?".