In a row of 5 chairs, A is sitting to the left of B, and C is sitting to the right of A. D is sitting to the left of C. Who is sitting in the middle chair?
Five friends P, Q, R, S, and T are sitting in a circle. Q is to the immediate left of R, and S is to the immediate right of P. T is not next to R. Who is sitting directly opposite P?
In a family, there are three generations. P is the grandfather of Q. R is the father of Q. S is the mother of Q. T is the sister of R. How is T related to P?