[constantcrying]

These were master and late Bachelor courses, so 30 people at most. Exams lasted around 60 minutes, of which around 45 were questions.

>how many questions are asked?

Totally depends on the subject and how the exam goes.

>What's it like in general?

Your professor is poking you with questions. Usually he has prepared some general questions and then asks follow ups. It might go something like this. "What is X Theorem? What does it represent geometrically? Does conditions Z need to be true for the Theorems to hold? Can you name a counter example? How does the proof (discussed in lecture) look like? How exactly do you construct that part? Where do you need that condition? Here is a similar theorem (not discussed in class), can you outline a proof for this?"