What are all the top 5 programming languages and which one is best to create web apps?

Answer 1

the best for web applications are:
HTML5, CSS, JavaScript.

Then if you want to start server-side programming you should also look at maybe something like Java, C#, PHP, node.js, maybe even Python and Ruby.

Programming languages are all different created for different reasons, I wouldn't categorise any language into "top 5".

I hope this answers helps you