Degrees in Singapore

Hi everyone,
I'm looking for some student info because I don't understand which kind of student progam is there in Singapore.

I'm italian (majored in Chiese language and culture BA).
In Italy after the BA you can have a master degree or else a post-graduated one which last from6months to one year generally.

How does it work in Singapore?

-Can you have a post-graduated course after the BA?
-Can you have it in a major different from your previous one?
-Which are good universities (for both studies and prices)?
-Which universities are recomended for economic post-graduated courses (marketing, international business, international trade,...)?
-Are there scholarships for foreigners?
-What to do to enter those courses?

Thanks a lot for the info
Hugs

Maggie