Doesn't that mean you can speak 6?
The Indian subcontinent usually gets complicated, as there are usually a /lot/ of local dialects that people speak, and some of them may arguably deserve to be separate languages - at least, the speakers usually think so :)
No. It's possible to read formal prose in a language without speaking it.
Polite/learned communication, specially in writing, is often contrived and limited, often resembling an archaic form of the language. It's very possible to read formal text in a language, and glean meaning from it based on your expertise in the language family. Though you would be helpless in the street.