Using a little logical thinking, I can answer part of my question. Although the puzzles aren't numbered, each puzzle must have specific categories, clues and an answer, otherwise we would have no reason to rate it. Also, once, after solving a puzzle I got an error message saying that I had already solved that puzzle. It would have been nice to have gotten that message at the beginning. How do duplicate puzzles affect the total scores? Is there an identification for specific puzzles in case we'd like to discuss them? Will there be a way to pull up a puzzle if we'd like to try it another time? Can we save a puzzle to shut it down w/o counting as unsolved?