repetition of questions in challenges

Question

In my opinion, participation in the challenge has three main goals:
1) Reminder
2) benchmarking information
3)Troubleshooting
The excessive repetition of questions in the sololearn challenges, destroyes the two last goals.
what is your opinion?
(Thanks to the honorable directors of sololearn)

Answer 1

I think that bank of questions of sololearn must be increased.what do you think about it?