how to pick the data randomly from database and pass

Question

Hi,

I am developing a quiz contest in before starting the quiz user is to select the types of question(combobox) & number of question and when the button is clicked we go to next quiz form in the question is displayed in textbox and option is displayed on 4 different buttons when we press one any button if it is right then backcolor of button is green else red.And when we press next button then next question is displayed and soon(question limit is 10).

Thanks.