guess no of apples
The servant reached the first gate and said, "May I go through to show the king my wonderful apples?" The guard replied, "You may if you give me half of your apples." The servant then said, "Fine but you have to give me back one apple." The guard agreed. The servant did this to the rest of the guards and finally met the king. The servant still had the same amount of apples that he had started with. How is this possible?