Two circles and a rectangle overlap in the figure. How many of the numbers inside the rectangle are greater than the number that lies in all three figures?

The number in all three figures is 8. The rectangle contains 11, 4, 15 and 8, and only 11 and 15 are greater than 8, so the answer is 2. 3 wrongly counts 13, which is outside the rectangle, 1 misses one of them, and 4 counts every number in the rectangle.