Very nice and creative ! I think I would have left S as 'seven' and then adapted the clue for F (maybe to S + N although perhaps that would become relatively easy to guess?). Perhaps you shouldn't allow for answers to be typed as numbers otherwise they can be guessed just by typing number 1 to 9
Ulysses is not a play. Nor is it a movie, although they tried to turn it into one. (Which led to my father refusing to ever again go to a movie based on a book he had read and liked.)
Really great quiz. Had to take it untimed because I couldn't figure out how to do it, was very confused. With about 30 seconds left I had only guessed like four. Very challenging, indeed. Kudos!