Challanges are challanging but not impossible,aren't they?

Answer 1

Tips: Finish the course before expecting to understand all the questions in the challenge, practice, learn from mistakes! Don't get too worried about the stats or xp, we're here to learn!

Answer 2

Thank you

Answer 3

That's true. It depends on how much experience you have solving different kind of challenges.

For a beginner it can be very difficult to tackle certain tasks; in some cases people may take longer solving problems than others. However, problem solving is a skill that you earn it by practising a lot, the more you practice the better you become solving challenges.