I think with the new version of #16, a lot of the other "have you done it here? how about here?" questions, like 25 and 26, can probably go.
I'd move things like "What's your sexuality?" (can we phrase that better?) up toward the top, most likely. And probably ditch the "friends list" questions, which seem to be going for titillation and "oooh, is she talking about me?"
I think I'd also add "and why?" to most of the "what's your favorite ___" questions.
A-and I could probably keep going, but I'm at work. Will come back to this!