The answer is 2 because if you use this thing called BODMAS which means Brackets () Operations ( Squaring, Cubing etc..) Division ÷ Multiplication × Addition + Subtraction -
If you do it in that order it is 8 - 2 = 6 6 x 4 = 24 24 ÷ 12 = 2
That is how I got that answer. I am not sure whether it is right though.