Question

$A$'s father's mother-in-law's only daughter's son is $B$. How is $A$ related to $B$?

• A. Brother
• B. Sister
• C. Nephew
• D. Cannot be determined

Answer 1

The correct option is D Cannot be determined

A's father's mother-in-law's only daughter is A's mother. A's mother's son is A's brother.
But A can be either brother or sister to B.