A out of towner is sitting in a bar in a remote Australian town. The newcomer hears people yell out numbers (42, 16, 28, and so on) and then everyone laughs.  He asks the bloke next to him what’s going on, and he explains that  the jokes have been told so many times before that people just yell out their numbers instead of retelling the entire joke all over again.

So the man yells out “27!”, but nobody laughs.

The bloke next to him shrugs his shoulders and says, “Ah well, some people can tell a joke, and some people can’t.”