Can anyone explain what a 'weapon' said here means, and how I can get one??

Question

I have been away for a while and now it seems this place has developed a lot with new codes in challenges and more languages to challenge.. but I have no idea what a weapon is and how to get one.. it would be helpful if someone helps me with that so I get back in track

Answer 1

Weapon = Language

Click on the thunder icon and "Start a Challenge", choose your weapon (language) and play!

You already have some weapons. ;)

Answer 2

You have to answer 5 questions asked and any of the two players who give maximum correct answer is a winner and will get more xps and badges + reach on higher level

Answer 3

Programming Language

Answer 4

How is the winner chosen?

Answer 5

so, what you choose for your weapon ?