Your cousin's mother's niece's grandfather is your which relation ?

Your

Cousin's

Mother's

Niece's

Grandfather

is your GRANDUNCLE !!

What relation is your wife's son's sister's father to you ?

What relation is your mother's daughter's brother's sister's father to you ?

What relation is your uncle's son's brother's wife to you ?

What relation is your father's sister's niece's daughter to you ?

What relation is your sister's aunt's brother in law's daughter to you ?

What relation is your brother's aunt's nephew's father in law to you ?