I interviewed at Google a million years ago and got the same sort of "trivia list", which was surprising to me. I passed most of them and everyone seemed excited about me while I was there, but then I started criticizing the interview process and (more importantly) Google Finance as being pretty bad, and this really upset everyone. I could tell they weren't used to ever being criticized, pointing out how the intervie…
Like OP, I was told that I was interviewing for a managerial position (in my case, a PM in SRE) but was given a technical interview that seemed designed for recent grads (I had about 10 years of experience at that point). My interviewer was My sense was that they were looking for extremely pedantic and detail-oriented programmers and nothing that I was being asked had to do with real problem solving, design, abstract thinking, or interpersonal skills.