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

Your

Aunt's

Brother's

Cousin's

Son's

Mother's

Brother in law

is your UNCLE !!

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

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

What relation is your uncle's son's mother's husband to you ?

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

What relation is your uncle's daughter's mother's niece to you ?

What relation is your grandmother's grandson's brother's daughter in law to you ?