1) Introducing a man to her husband, a woman said, "His brother's father is the only son of my grandfather." How is the woman related to this man? A) Mother B) Aunt C) Sister D) Daughter E) Grandmother Answer: Option CExplanation:Only son of woman's grandfather - Woman's father; Man's brother's father -- Man's father. So, man's father is woman's father i.e. woman is the man's sister.