I wanna challenge myself and my coding skills except here, are there other sites I can visit?

Answer 1

https://www.codingame.com/
- Awesome one,but need some starting knowledge.

https://codecombat.com/play
- simple one , but free is only few levels.

Have some more in my "notes" but didn't checked yet:

https://checkio.org/
-Python

http://vim-adventures.com/
-Vim

http://www.cyber-dojo.org/
JavaScript, Java, Python, PHP, Ruby and others like description says.

https://www.playcodemonkey.com/
- No info

http://play.elevatorsaga.com/
- No info

http://www.codewars.com/
-Clojure,C,C++,C#,Crystal,Dart,Elixir,F#,Go,Haskell,Java,JavaScript,PHP,Python,Ruby,Rust,Shell,SQL,Swift,TypeScript...

http://rubyquiz.com/
-Ruby

http://www.hacker.org/
-No info.

http://www.git-game.com/
- No info.

Answer 2

Geeez Rose! Nice

Answer 3

Thank a lot for the lot (of answers)