There are an infinite number of answers. One answer is 2000 + 9.
-5 and 3
The numbers are: -5 and 3
36 and 64
40
31 & 67
5 and -3
-3 and 5
-5 and 3
10
12
The numbers are: -5 and 3
-1 and 18
3 and -5.
83
36 and 64
40
add them all together and then divide the answer by the number of numbers.