Your uncle's cousin's daughter's aunt's sister is your which relation ?

Your

Uncle's

Cousin's

Daughter's

Aunt's

Sister

is your SISTER !!

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

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

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

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

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

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