What is the relevance of the challenges in some the Programming languages on Sololearn?

Question

I get to find that most questions require you to find answers for mathematical expressions in the shortest time possible and not to check wether or not you know what the question requires.

Answer 1

Already on that...

Answer 2

That seems to be a fair impression... On the other hand, questions and answers about more complex issues are not easy to come up with.
I guess the only way to change this is to contribute to the quiz factory and dislike the suggestions you dislike...