A man and his wife were driving in a car, when the wife's behaviour caused him to stop the car and rush to the nearest house. When he returned to the car, he found his poor wife at death's door and there was a stranger in the car with her. When the police arrived, they did not arrest or even question the stranger. How come?
The woman had delivered a baby.
What are the next three numbers in this series: 4, 8, 12, 16,...?