the room clerk at a new york city hotel became friendly with one of the guests, and the two began swapping jokes "i have a riddle," the clerk said."my mother and father had a baby.it wasn't my brother or sister.who was it?" the visitor thought for a ment and then said, "i don't know."
"it was me,"answered the clerk.the visitor returned home and decided to try the riddle on his friend."my parents had a baby.it wasn't my brother or my sister.who was it?""i don't know,"his friend replied."who was it?""a room clerk in new york.