If you want to start a challenge, your own challenge, containing 3 languages, how do you do this?

Question

I have a great challenge for html5, css3 and javascript.

Answer 1

What?
I think you want to say that you have questions and you want them to appear in challanges, so
you need to submit them in quizfactory.

Answer 2

Exactly, thank you!

Answer 3

I see I can write the code using WEB, but I want to create a challenge