Google Product Manager interview questions

One guy was literally yawning all the time at around 11AM, which is very unprofessional. I was like, dude, doesn't Google serve coffee or sth? I won't share specific interviews questions (I don't think they actually help much), but I will share some of my observations (which may not be 100% true): 1) Google seems to maintain a pool of interview questions. I was asked 2 of the same questions listed on glassdoor. But sometimes the interviewer just make up questions on the fly. 2) On-site consists of 5 rounds, 3 peer PMs + 1 PM director + 1 engineer, you'll have lunch w/ a lunch buddy after the first 3 peer PMs (food is actually so so). Meanwhile, your recruiter will gather quick feedback and make a snap judgement about whether to proceed w/ the PM director and engineer. If you don't make it to the after-lunch session, it is a ding for sure. 3) You need at least one 'strong hire' recommendation from the 5 rounds. It is not unusual for someone to get 5 'hire' recommendation but get dinged. So try very hard to really impress one interviewer.

Applied through website. Contacted by email to setup time for phone call with HR. After this have been trying to setup a time for a phone interview with a project manager. Has been several weeks of scheduling.