I don't know, I guess I have a very pessimistic view of interviews asking these sorts of questions almost vindictively. I'd prefer questions and problems and c

I don't know, I guess I have a very pessimistic view of interviews asking these sorts of questions almost vindictively. I'd prefer questions and problems and challenges that I'm likely to face and address as an engineer. If Google hires engineers to answer "brain teasers" that either require a dozen exceptions/qualifications or some vague random nonsensense answer, then more power to them. (But I doubt they do, they wouldn't be where they were if their hiring practices didn't work to some degree.)