68
67
59
To find the median, you add up the set of numbers and divide that answer by the total number of numbers that are in the set. For this question, the answer is 318/6 = 53
89
9
-1639
1, 8, 27, 64
64 itself is a square. There are no other two squares that add up to 64.
There are no whole numbers that satisfy your request.
-325
36 and 64
The set of real numbers.