A young boy lives on the 10th floor of a apartment building. Each morning he rides the elevator down from the 10th floor to the 1st floor & goes to school. When he comes home, he gets on the elevator, rides to the 5th floor & then walks the final five sets of stairs to the 10th floor. Why?
Answer: He is only tall enough to reach the button for the 5th floor. The higher-numbered buttons are out of his reach.