Your brother's aunt's niece's uncle's son is your which relation ?

Your

Brother's

Aunt's

Niece's

Uncle's

Son

is your COUSIN !!

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

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

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

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

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

What relation is your father's son's aunt's husband to you ?