Part of trying to get a job is learning about the interview practices of the company you are applying to. If they do puzzles then study some dumb puzzles. The

Part of trying to get a job is learning about the interview practices of the company you are applying to. If they do puzzles then study some dumb puzzles. The puzzles usually aren't that hard and interviewers generally talk these types of problems over with you as you are solving them. If you really want to work at Facebook, and you are a conscientious developer, then you'll study and be prepared for their kind of interview.