What is the challenge section about?

Answer 1

I have a hard enough time just answering without illustration's most of the time

Answer 2

Two players should answer 5 questions related to a programming language. The one who correctly answers more questions than the other wins. Winner gets positive XP and loser gets negative XP. If it's a draw, none get any XP. And, XP decides you Sololearn rank.

Answer 3

Sololearn challenges.
5 questions of these types:
Multiple choice (1 to all correct answers)
Guess the output(given the code guess the output)
FIBs(fill in the unfinished code and make it work proper)
Answer bonus=Number of questions answered correctly
Win/loss bonus: +/- XP based on yoyr performance to opponent. + if you win, 0 if draw, - if loss. Cannot exceed +-32XP
Total XP: sum of these 2 components