I want to work as a freelancer to get some money but I don't know what skills and languages I must learn?

Answer 1

Well... freelancer is a bit different, because you are alone, you must to know a bit more than working in a company, where you can ask your partners for help.

You can be freelance for every language you want.

But web seems really good place to start, I would recommend go for

html -> css -> javascript -> php

With that and a bit more practice and research, you can make really good and functional webpages.

Answer 2

I suggest learning html, css, php and js. In my experience, making a website is the easiest and has the most job that you can take.

Answer 3

They usually ask for php, because it's the most popular language. And it's the most popular language because they ask for it... it's a circle. The same goes for java