My mother’s husband is my...
father
My sister’s son is my ...
nephew
My son’s father is my ...
husband
My father is my daughter’s...
grandfather
My mother’s brother is my ...
uncle
My wife’s son is my ...
son
My son is my daughter’s ...
brother
My sister is my father’s ...
daughter
My aunt’s daughter is my...
cousin
My mother is my son’s ...
grandmother