Exams

When was the last time you took an important exam? What was the result? How did you feel before/during/after the exam?
Do you usually become nervous at exams? Why? Why not?
Are exams important in your educational system? Is it good?
How can exams help you learn?
Have you ever cheated in an exam? How? Why?
If we omit exams, how can we say who is good/bad at schools?