Your mother's sister's niece's brother is your which relation ?

Your

Mother's

Sister's

Niece's

Brother

is your COUSIN !!

What relation is your brother's aunt's son's mother to you ?

What relation is your father's son's uncle's daughter to you ?

What relation is your cousin's father in law's brother's son to you ?

What relation is your sister's cousin's aunt's niece to you ?

What relation is your mother's cousin's daughter's aunt to you ?

What relation is your cousin's mother's daughter's grandfather to you ?