Mnementh on 16 March 2014
As Soleron said, it is easy to learn new programming languages, if you understood basics of programming.
But out of curiosity I recounted it: Java, C, Pascal, C++, Basic, Assembler, Groovy, Javascript. I don't usually count HTML and such stuff as programming language (more special purpose languages), but as OP counted it: (X)HTML, SQL, LaTeX, XML, Make. I may have forgotten some or the other, doesn't matter much.
And as someone mentioned Stackoverflow: 18K points.
