yes there is
Yes. you can play ANY xbox 360 game on ANY type of xbox 360. you can also play original xbox games on the xbox 360. (but you have to have a hard-drive to play original xbox games on the 360)
yes it can play any xbox 360 games
no the hardrive you plug into your xbox 360 can only be used to play music, films and pictures from the hardrive on your xbox 360 you can not play any games nor store any xbox 360 data on the hardrive.
If you are referring to an "older xbox" as the regular xbox, then the answer is no. but if you are referring it as the first models of the xbox 360, then you can play halo 3 or any new xbox 360 games on your Xbox 360.
A Microsoft XBOX 360 does not run an emulator. You can only play XBOX based games. Any XBOX 360 that has an emulator to play non XBOX games is a modded XBOX 360.
any xbox 360 plays all xbox games This answer is pure bull. No, you cannot play all Xbox games on a 360. The list of compatible games is here: http://support.xbox.com/en-US/games/xbox-games/play-original-games
YES OFF COURSE we can play any pirated CD on Xbox 360
yes you can play any xbox or xbox 360 games in zealand but you cant play on xbox live :)
yes
You can play any online game without Xbox live.
Yes And No, xbox 360 games can't be played on the xbox and only some xbox games can be played on the 360. All of the newer games are made for the 360. But you can Hack both of them and play some Xbox games on the Xbox 360 like Halo 2 for example you can play online with Halo 2 on the Xbox 360.
You can play original Xbox games on the 360 because it is backwards compatible but you cannot play any other console games on the Xbox 360 because it does not support other discs. There would be no point in other discs if you could play one disc on any console.