Depends on your technology, lots of technical questions... Can't name a single. Interviewers just want to know you. You can say a lot of things which is not written in the resume like your hobby, you have an adventurous/sporty personality, you love cricket, you are big time art fan and so on.... Try to invest your time as much as possible. By this I mean just get interviewer engaged for 1-1:30 hr and you hit the jackpot.