A penny. (Heads and Tails. And Every Penny Has A Date On It.)
One of the men is a grandfather (father to other father) One is a father and one is a boy. (both sons and one father)
Jason. 1= January 4= April 9= September 10= October 11= November. The First Letter Of Each Month Ends Up Spelling Jason.
Your nose. It runs. And your brain is right behind it.