What language must be equipped with to learn hacking?

Answer 1

PHP is the most important (You need previous knowledge of html,css,javascript) , more than 75% of hacking tools and exploits are coded in PHP.. then the next important one is Python .. for more knowledge learn Perl

Answer 2

Great Question .Every Language Must be learned.There are over 160 Languages and More I dont want you to learn All 160 of them.But here are some Important ones:
Assembly Language
Rust
C
C++
ASP
HTML
CSS
JS
PHP
SQL
Python
Ruby
C#
Linux
Shell
Ajax
Jquery
and More.