Answer:
Question 3: 8
Question 4: 6
Question 5: 4
Explanation:
An easy way to do this in your head or on paper is just to count with the second number until you reach the first. For example in question 3 just take 4 and keep counting 4 more until you reach 32.
4, 8, 12, 16, 20, 24, 28, 32, (just kept counting 4 more)
Since it took 8 numbers to reach 32. The answer is 8.