how to obtain EU passport those who are non EU?

Answer 1

Apply for citizenship in any EU country.
Here's the rules for Holland (where I live): http://www.ind.nl/EN/verblijfwijzer/verblijfwijzer_mijnsituatie.asp?proc=komen&lang=en&duur=1&procedure=Obtaining+Dutch+nationality
I'm sure you can find info for other countries yourself - or call their embasies in your country.