Google Software Engineering Intern interview questions

FIrst I had two technical interviews, which were back to back, by phone, 45 minutes each. I coded in a Google Doc that was shared with the interviewer. They asked standard factual questions about Java and OOP (which I had stated I was familiar with) and asked me to work through a programming problem in the language of my choice (I chose Perl, the interviewer wasn't familiar but was fine with that). I made some mistakes in my code, didn't check some boundary conditions, the interviewer asked e.g. "what about when x = y", I fixed it, it was fine. Then I had two interviews with potential hosts, they asked me what I wanted to get out of the internship, what experience I had with the technologies they used, and how I would approach various research and engineering problems.