1. Tell me about yourself in 2 minutes.
2. What is your expected salary?
3. Why should we hire you/Why do you need job?

Answers:
Things that worked for me:
1. I think about myself and find myself doing the best wherever I work and growing with my knowledge and experience. Most importantly, I think of being someone who gets call from people who wants to do business with me in future. Yes, thinking about being an entrepreneur.
2. As I am very much aware of the post and of the salary structure of this company, I will ask for *** BDT as my monthly salary. (Because they asked for specific amount)
3. You have judged me already, so I'm asking why you won't? That will help me to make myself improved.