Riddle: A world-famous magician and his young assistant were observed walking slowly along in a department store when suddenly they both stopped walking and began to slowly rise from the floor. The two continued to rise majestically until they had reached a height of 20 feet. Numerous store customers and a security guard witnessed the event, but no one seemed shocked by what they had seen, and no report of the occurrence ever reached the news media. The secrets of magic are not supposed to be revealed, but how would you speculate the magician and his assistant accomplished this feat, and why didn't the onlookers express amazement?
Answer: The magician and his assistant were simply using an escalator to go up to the next floor in the department store.