MIND TEASERS 
Think of a number Double it Add 10 Take away 4 Add 2 Halve it Take away the number you first thought of The answer is 4!
Think of a number Add 6 Multiply it by 2 Add 4 Halve it Add 3 Subtract 5 Subtract 6 Subtract the number you first thought of The answer is Zero! Back to KIDS ZONE