Your uncle's son's brother's grandfather is your which relation ?

Your

Uncle's

Son's

Brother's

Grandfather

is your GRANDUNCLE !!

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

What relation is your aunt's brother in law's son's uncle to you ?

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

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

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

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