Hi friends,
I am trying to develop a free website which will allow the users to practice certain online exams.

My website will let people to register for free. And then, they can choose the exam they want. Answer the multiple choice questions. Then view the report and overall rank. Also view his/her previous exam statics. That much.. :-)

The thing is, I want your opinions about doing this. That is, what you have in your mind for the best performance of my site.
1. In brief, I want to know which language I have to choose..
2. Which database system should I use
3. Should I have to buy a server for this or try other companies hosting plans
4. Should I have to enter the questions to a single table..
etc....

Please help me....