No.
No, the original Wii cannot play Wii U games
You can't, Wiis are region locked.
no
Probably not, (Ahem) There are 2 regions of Wiis. PAL and NTSC. PAL Wiis can only play PAL games. NTSC games can only be played by NTSC Wiis. NTSC is usually for The USA, PAL is generally for everywhere else. There are also NTSC-J Wiis in japan.
not some games but some games do
SORRY! Only American wii games work with American wiis. Unless hacking or modding works!
The Wii U is a different console to the Wii. The Wii U however is compatible with Wii games and accessories.
I know that the US games do not work on Europian wiis and visa versa, this is also true for the Japanese version, so I would guess that a US game will not work on an AU wii
No. Black Wiis are the exact same as white ones. Wii U games can only be played on Wii U consoles exclusively.
no
Some can be downloaded via the wii shopping channel (for a price), or they can be played via an emulator on modded wiis.