Your aunt's cousin's son's father+in+law is your which relation ?

Your

Aunt's

Cousin's

Son's

Father in law

is your UNCLE !!

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

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

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

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

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

What relation is your father's mother's grandson's sister's father in law to you ?