Google Sr Developer interview questions

Overall process was well organized. First a recruitment specialist of some sort called me to know more about my area of expertise and i think this was used to pick the folks who would interview me. Their interview process is aimed at selecting a new employee for the company ..and not for a particular group First there were two technical interviews on the phone. each interview was 45 or 50 mins. First part of each interview were technical questions to gauge my understanding in my areas of expertise. the second part of each interview was problem solving. The on-site interviews : There were 4 interviews totally on the same day.. each about 45 or 50 mins. First there are two interviews, then lunch and then another two interviews. Someone will take you to lunch at their cafeteria after the 2nd interview. The on-site interviews were focused more on problem solving... so back to back problem solving i felt was a bit strenuos. i was somewhat mentally drained by the last interview.