Answer:
One more than a duet.
What starts with the letter T, is filled with T and ends in T?
They come out at night without being called, and are lost in the day without being stolen. What are they?
A gentleman whose offspring have successfully produced offspring of their own.
There is a clerk at the butcher shop, he is five feet ten inches tall, and he wears size 13 sneakers. What does he weigh?
I am your mother's brother's only brother in law. Who am I?