Riddle: Jonas had a happy life until he turned 75. His wife Jane, had a heart attack and is now running on life support using electricity. Without it, she would die. One day, Jonas went to buy groceries for a magnificent dinner. When he pushed the elevator button, though, he knew that his wife was dead. How?
Answer: The elevator did not startup. That means there was a power outage and the electricity was gone. That means the life support failed.