Are All square numbers even numbers?

Answer 1

No; most are not, not even close. 2 is not a square, 6 is not a square, 8 is not a square, 10 is not a square, 12 is not a square, and 14 is not a square, just for starters.

Only a very small proportion of even numbers are squares: 4, 16, 36, 64, 100, 144, 196, 256, 324, 400....

Answer 2

No - all squares of even numbers are even - while all squares of odd numbers are odd.

Answer 3

No