Your mother's sister's husband's son is your which relation ?

Your

Mother's

Sister's

Husband's

Son

is your COUSIN !!

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

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

What relation is your brother's cousin's aunt's husband to you ?

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

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

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