Advie, I agree. You can't ask Gabe to delete guesses. But there's nothing wrong with your quiz. I like it. Not too hard and in my book that's goooood!
Just stick to your own rules and don't keep changing them.
Since you asked, two more guesses.
16.
Spoiler:Edna and Harvey
50. Because Gabe got it wrong.
Spoiler:A vampire story