Infosys System Engineer interview questions

The interviewer was very friendly, he asked for introduction, followed by a simple puzzle and questions from my projects and basic java questions since I had mentioned it in my resume. I got selected.

Basically they came on campus for the drive and they took a test and in each lab there was 1 volunteer of infosys. After the oa got cleared 23 people were selected for the oa and then the interview was schedule the same day. So 3-4 people of Infosys came and took the interview.