Question 1
Answer: 180 degrees
Reason: The minute and hour hand form a straight line, or straight angle, which is always 180 degrees in measure.
============================================================
Question 2
Answer: 36
Reason: Split a pizza into 12 equal slices. Imagine having 3 such pizzas to get 3*12 = 36 slices in total. This leads to the idea that 36*(1/12) = 3.
============================================================
Question 3
Answer: 360 degrees
Reason: This is by definition of what it means to do a full rotation.