Thread: Best way to study for exam?

What is the best way to study for an upcoming math exam? I solve as much problems i can find, review notes, but there is always that one question that i can't solve at the end of the test and have no clue how to study for it. Can someone please direct to a place to find math problems to solve of a high level not the basic questions? Please and thank you.

Don't you think best person to ask is your math teacher?