Hi,
I can develop your website, i have recently one website which similar to your requirement. There set of question, timer, answer to select, test result window on MCQ.
We developed website control panel also where admin user can add a sets, questions, correct answer.
So, I have experiences in development this type website. which help you to startup with good idea.
I would like to work on your project, i would like to discuss in details.
Update Your exact time to discuss in details.
Thanks,
Mahesh J