This is quite normal. It is important to note that the difficulty levels of multiple-choice computer-based tests are decided by the selection board of each competition, and thus can vary from one competition to another, so one should not compare one's score in different competitions. While some questions may look similar or may even reappear, with over 80,000 questions in its database, EPSO holds one of the largest item banks of its kind in the world according to experts in the field.