Print "Hello, World!" in the 20 Most Popular Programming Languages

I will keep this very simple. The task is to type Hello World in 20 different languages. You cannot post the same language again. Your post should contain a new language and should follow the same format as I have posted below.

01. C++

#include <iostream>
using namespace std;
int main()
 cout << "Hello, World!";
 return 0;

Now your turn!