The numbers are 12 and 14.
122 + 142 = 340
8
The numbers are 13 and 14.
15 and 16
17 and 18
62 and 63
12 and 13
The numbers are 8 and 9.
12 and 13 (and you may note that 12+13 = 25)
6,7,8 those numbers squared are 36,49,64 which add to 149
Consecutive numbers are whole numbers whose difference is 1.