How can I display approx 10 questions in every exam page?

I am new to asp.net....I am trying to develop an online exam practice website for entrance exam in asp.net with c#. I am done with the database design, login page, registration page and admin's operation such as insert, update and delete records through gridview. Now I want to develop main exam page in which user select the exam from the dropdown list and will be directed to that exam page and after giving exam result will be displayed.

I don't know to select random questions with answer options from database and display them on the exam page...and all the exam related information should display on the result page...

Please provide me some sample code so that I should get some Idea how to implement whatever I have thought .

Here is my table design:

1) Exam Table     2) Question Table           3) Result Table

Id                                QId                                RId

ExamName                 Section                          ExamName

No.OfQues                 OptionA                          No.OfCorrectAns

TotalMarks                OptionB                          No.OfWrongAns

TotalTime                  OptionC                          MarksObtained

ExamDate                  OptionD                          No.OfAttemptQues

QId                          CorrectAns                         No.OfSkipQues