Google Sr Developer interview questions

I got email from a Google recruiter after a brief talk with her I got a chance for the first phone interview. In the phone interview I was asked two questions and I need to code on Google Doc. After I passed the phone interview I was invited to Maintain View for a onsite interview. There was 5 rounds each round 1 to 2 interviewer (1 shadow interviewer he would not ask you questions). They would ask you technique questions and you need to code on whiteboard.