S is the son of P. P is the sister of X. Q is the wife of G. X is the daughter of G. How is S related to Q?

💡 Solution & Explanation

P is the sister of X, so P is also a child of G. Q is G's wife, so G and Q are both parents of P. S is P's son, so G and Q are S's grandparents. Therefore S is Q's grandson.