Why when I go to play does it give me questions about things I haven’t learnt yet?

Answer 1

The idea is to start doing challenges AFTER taking the course. The questions are random and *should* only relate to topics covered by particular courses. If you feel a quiz is beyond this scope, you can report it -- it shouldn't be.

Answer 2

Are you talking about challenges?

Answer 3

Yes challenges. I just started learning c++ and did 1 challenge after completing basic concepts (pretty sure this is when I did it)however questions were from next section.

I did this again after completing a few more things and had the same experience.