I should be able to with an adapter.
yes im pretty sure
No, I don't think you can they have regions like dvd's. The only console you can do that for is DS.
yes because the UK and AU have the same format PAL
It's possible but your Xbox works only with games that have the new Zealand regional code
yes you can but the language would not be in the setting that you want them to be. it would be the language you got the item from.
No due to region locks on the console. This is also the case with the Wii, however the PS3 is not region locked
It depends on the game because some games are region sensitive and some aren't.
yes you can
no only UK games play on UK consoles, and US games to not play on UK consoles
NO. all 360's have a code and could only be used in the country you bought it on.CORRECTION: Both the system (UK) and the games (AU) are in PAL format. They will work fine on that console.
If Australian games are the region PAL then yes.
It can be downloaded off the xbox its self, it costs around £40 in the uk and can be purchased and downloaded directly to the xbox 360 console. *Internet connection required