I speak quite a few languages to a varying degree but only two where I've acquired mastery: English and Indonesian. Other than these, I also speak Japanese, French, Danish, and Italian and though I've gotten the grammar, pronunciation, and accent right, my vocabulary sucks that I probably speak like a child. I also understand a little German, Mandarin Chinese, Arabic, and Spanish.
As far as literacy (ability to read and write) goes, I can write things that are written with the Latin alphabet obviously. I know some common Kanji characters but none of the Simplified Chinese characters. As for long form writing (as in, writing something off the top of my head without stopping to think), I'll say English, Indonesian, French, and Danish are the languages where I'm very literate in. These are the languages where I have no need for subtitles in a movie as well.