How old is Daddy?

Tonight Jason and Ellie had a conversation about age. He explained to her that she is three and a half years old, and that means she was born three and a half years ago. Then he said, "I'm thirty-five and a half years old, so how long ago was I born?"

Without a moment's hesitation, Ellie replied, "You were born on the day that you and Mommy got married!"