Ben asked how much younger than Sarah he is. I told him just about three years younger. I explained that there are twelve months in a year and that from April to April is one year (Sarah's birthday is April 25). Then another April to April. Two years. Then April to March 3, Ben's birthday, is almost three years.
He says (now this is coming from the mouth of a five year old), "So my birthday is before hers. I definitely might get older than her someday."