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I don't know about blue hair, but that sounds exactly like the anime sands of destruction. there might be a girl with blue hair but she is not a main character.
Almost every anime series
Tokyo a mew mew.
That is R.O.D. (Read or Die) the anime here is a screen shot of the anime series. http://www.haru.tv/cover/489.jpg
11 eyes
Some key facts about the anime character Hinata Hyuga are that she is shy, thoughtful, serene, kind, and polite. She also shows lots of honour towards others. Hinata is a very hard worker, and always strives to get better.
Gurren lagan!
No there isn't. A future anime series is not currently planned for the manga either.
The name of the movie your are looking for is "Green Legend Ran"
Yeah, Haruhi Fujioka and Tamaki Suoh from Ouran High School Host Club
Depends on your own body and if you are willing to skip cutting your hair for a while. Also, it isn't easy to get spiky hair like those anime guys, though as a girl all you need to do is to let it grow, get some pink or green hair dye and you're set!
What you are thinking of here does not sound like an anime I know, but a voice simulator program called "Vocaloid". It sounds like the female with blue hair is Miku, and I can't quite recall the name of the pink one.