Step 1: Come up with any number.
Step 2: Subtract 1 from this number.
Step 3: Multiply your answer with the number 3.
Step 4: Add 12 to the number.
Step 5: Divide the result by 3.
Step 6: Add another 5 to your answer in Step 5.
Step 7: Subtract the first number you came up with at the start (Step 1) from the number you resulted in at the end of Step 6.
The Answer will be Number 8!