William is my aunt's husband. My aunt is my father's sister. How is my father and William related?

She is my father's wife. She is my _________.

What do you call your father's brother?

Jenny  is my sister's daughter. She is my ________. 

Rachel is my uncle's wife. She is my ___________. 

I am Billy. George is my son. Willy is George's son. Then how is Willy and me related?

Jack and Jill are born to the same parents. Jack is Jill's

My brother's wife is my _________.

Sam and Tom are Johnny's uncle's children. How are they related?

This is Sara. She is my daughter's daughter. She is my ____________.