Question set

I had to built a E-Learning with a Question set for customer. 
The question set has 15 questions and you can do the Quiz so often you want. With every attemp of the quiz Storyline should take 5 Questions oft the Question set. I had also to build a button "view the quiz" to show the last wrong answers but that doesnt work: What I see than by clicking the button are the 5 done questions without showing my marked question. There are only the info one the slide "wrong" and the questions but no information what are the wrong and what are the right of them. What can i do?
I need to see all sliders i did with the information about my solution or the right solution..