Solution

24233

First name
Michael Martineer
School
St Patrick's
Country
Age
12

The numbers that aren't the sum of three squares below 97 with the squares that add up to them are:

7-4,1,1,1
15-9,4,1,1
23-9,9,4,1
28-16,4,4,4
31-25,4,1,1
39-36,1,1,1
47-36,9,1,1
55-49,4,1,1
60-49,9,1,1
63-49,9,4,1
71-36,25,9,1
79-36,36,4,1
87-81,4,1,1
92-81,9,1,1
95-81,9,4,1