A topic you 'somewhat know' is a topic you don't know yet. Be honest about your weak areas.

Blood Relations — quick quiz

3 SOF ICO-pattern questions on Blood Relations. Instant scoring and solutions, no signup — see where you stand in a few minutes.

Question 1 of 3

Hard

Introducing a man, a woman said, "He is the only son of my mother's mother." How is the woman related to the man?