一個題目多種答案，到底哪一個對，請給出出處、解釋、說明。

答案1：64

11x11 = 4
22x22 = 4^2 = 16
33x33 = 4^3 = 64

答案2：18

11 x 11 = 121
1+2+1=4

22 x 22 = 484
4+8+4=16

33 x 33 = 1089
1+0+8+9=18

答案3：36

(1+1) * (1+1)= 2*2 = 4
(2+2) * (2+2)= 4*4 = 16
(3+3) * (3+3)= 6*6 = 36

答案4：28

11x11 = 11-(8-(11 mod 10)) = 11 - (8 - 1) = 4
22x22 = 22-(8-(22 mod 10)) = 22 - (8 - 2) = 16
33x33 = 33-(8-(33 mod 10)) = 33 - (8 - 3) = 28