In general, what are some "must ask" questions when holding a discussion about a book?

Answer 1

http://www.google.com/search?q=book+discussion+questions&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA

Answer 2

http://www.multcolib.org/talk/universalquestions.html