IBM Software Developer interview questions

I joined the IBM Global Delivery Company Limited weeks ago. Our team worked for the Suncorp project. It is a Australian Insurance company. There are three rounds of technical interviews, all are phone interviews because they won't reimburse the cost of travelling to Shanghai. First round is quite simple, just some basic questions on Java and English skills. In second round, two engineers interviewed me, they started with simple questions and then go deeper. I really enjoyed the process because they asked some awesome questions and they did it not like an interview but like a technical discussion, the atmosphere is comforting. Last round was from another team, this interviewer behaved a little more serious, all discussion are all technical oriented.