I don't know about the first part but this's site has the same problem that ask did, YOU CANT DELETE QUESTIONS
Two questions: what time does facebook notify you of someones birthday? Fo some people its different. why? and can you delete questions asked on blurt it
Anytime after midnight.
I normally get a notification around 8:30am for peoples birthdays. I hardly ever wish them a happy birthday though, since I'm really only on Facebook for Jeep part groups.
Yeah Im not a moderator but on most sites, after 1 or more answers are submitted you cannot delete the question. Only way is if you get a moderator to do it---that I have no experience with on here.
Cant help you on the Facebook thing, Im not much of a facebook user.