This thread for those people who submit their quizzes in Q/A Section with title "Fill in the Blanks" , " What is Output of this Code " and same.
In sololearn App , there is quiz factory to submit all the quiz to be in Challenge after approval.
There are certain badge for creating Quizzes.
For info review these.
THE PEOPLE ASKING FOR EXPLAINATION IS WORTH BECAUSE THEY HAD DOUBTS TO GOT CLEARED FROM US.