Yes
49
The number 31 is not the square of a whole number. It is the square of 5.5678.
The number 51 is not the square of a whole number. It is the square of 7.1414.
2 sqared is 4 so 2x2 sqared is 4
I don't know what sqared is but twelve squared is 122 or 12 x 12 = 144
25
64.
625
6 if you are an idiot and 9 if you are smart
10
19 x 19 = 361