Answer 1

This thread contains some resources you can consider:
https://www.sololearn.com/Discuss/563537/?ref=app

Answer 2

For AI ,u should learn Python 3 & Machine learning.
U can learn python and ML from here...
https://www.sololearn.com/Course/machine-learning/?ref=app

Answer 3

To hack something you must first know how that thing actually works, example- To hack a webpage you first need to know how that webpage is built i.e.html,Css,Php,javascript etc.
The same applies to all other things.....For AI you can learn ML and Data Science...