Quiz Website Script or Plugin

Hey Guys I want to make a website like quizdiva.net . But i'm not able to find plugin or any script that can work exactly same as the website mentioned above. Please guide me guys which plugin / script they are using to make this type of quizzes. I used wp quiz pro plugin by mythemeshop but this doesn't work as i want to i want to add the same funtionality as they have on there website. thanks in advance guys..

Call @Festinger to help you with this on mate