[1] Tell me about urself

[2] What is that you give to my company if i hire you

[3] why do you like to jump into a call center field 
because now a days it is not a booming industry?

In call center generally they may ask about these topics.
1)Traffic in your city
2)About your roll model
3)About a movie
4)About your favourite holiday destination
5)About the things which you use regularly
6)About the first day in your college
7)About your girlfriend
                       .......

the main aim for them is to assess your english proficiency,
your flexibility, computer skills
best regards