A grandpa, who was turning 72, and his granddaughter, who was turning 7, had their birthdays on the same day.
The granddaughter told her grandpa that he was a lot older then her. Being older and wiser he said “No, we are the same age.”
She said, “But grandpa, I am only seven. What number are you?”
He replied, “Yes you are, and I am only seven too!”