Is it possible to be able to publish a manga in Japan even though you're not Japanese?just asking^^

Yes it is possible, if you know enough of the japanese alphabet and language and style or culture, you can. (^_^)

yes as long as you can draw manga and write a story-line you can publish one^^eg sweat drop studios is a english based manga company^^

Yes, alot of manga isn't Japanese, I read some that Korean, Taiwanese, and America. Courtney Love, and Avril Lavigne, both put out manga, I never read them, but they are out there.

Yep

Stan Lee (with the help of the writer of Shamen King) got Ultimo published