Regarding #9's alternative, "Not counting Canberra, what city was the most recently founded state capital of Australia?" is a bit of a bad question in and of itself, given that Canberra isn't a state capital, since the ACT isn't a state but rather a territory of Australia (alongside the Northern Territory).
xkcd #2922: Pub Trivia ( imgs.xkcd.com )
https://xkcd.com/2922...