Sort:  

It's 36 or 64!

36 is the right answer. But how did you think of 64?

Well
4^1
4^2
4^3

ohhh!!!
multi-thinker!!

1089 No matter how many incorrect equations you write in front of it, 33 x 33 can only equal 1089.

Hahaha..
Obviously these are wrong equations. The pattern of finding answer is given here.. Thats how it is different from normal maths.
11 * 11 = 4 >> {(1+1)(1+1)} = 4
22 * 22 = 16 >> {(2+2)
(2+2)} = 16
33 * 33 = 36 >> {(3+3) * (3+3)} = 36

No @chaitanya77 it's 36. Here it is:
11 * 11 = 4 >> {(1+1)(1+1)} = 4
22 * 22 = 16 >> {(2+2)(2+2)} = 16
33 * 33 = 36 >> {(3+3) * (3+3)} = 36