Ha, that was fun. The last three were pure guesses, of course. Given that one of the answers is an HTTP response code, and the puzzle gives you a pass for ano

Ha, that was fun. The last three were pure guesses, of course. Given that one of the answers is an HTTP response code, and the puzzle gives you a pass for another response code which is present in the sequence but not intended as an answer, it was a little surprising when a third response code was just an error!