How to add custom question survey on my web

I want to add a custom questionnaire of my web for survey i am using Wix, can you suggest any particular way, My requirements are i want to add to add 20 questions and user just go through the survey and click on the right answer and submit it, then there should be a screen for adding email for the answer. answer should work like that the number of wrong answers divide by 22 and multiply by 100. like wrong answers are 4=> 4/22=ans => Ans*100=Answer This last answer is the score of user how can i add this to my wix or any other form builder to add this custom scoring.