Nope
No you can not play the PS Vita games on a PSP.
Yes, the PS Vita's games are region free. A Japanese PS Vita will play an EU game.
The PS Vita does not have a UMD slot so it can't play those. However if you've bought a PSP game on PSN, it can possibly be downloaded on PS Vita, you'd have to check to see if it is available, you might have to wait for it to be enabled.
No it can not. The PS Vita can not play the Black Ops game. The PS Vita plays PSP and PS vita games not PS3 games
No the Playstation does not play PS2 games
You should buy a PS Vita if you want to play PS Vita games.
You can "play" PS games on the PS2
There is an increasing selection of PS games, 'PSOne Classics' available on the PSN, the PS Vita has an emulation mode to play them on. Also, there are some that aren't available on the PS Vita's PSN store but are on the PS3's, which can be transferred across to the Vita via the PS3.
No, the Vita's browser can't play flash-based games.
No you can play PS2 games and some PS titles only
The PS2 PSP PS vita and PS3 just like the USA