Choose the odd pair of words.

C. CAR - ENGINE

If M * N means M is the father of N, M + O means M is the brother of O, and O - P means O is the sister of P, what is the relationship of P to N if M * N + O - P means M is the father of N, M is the brother of O, and O is the sister of P?

D. P IS N'S SISTER

If A * B means A is the father of B, A + C means A is the brother of C, and C - D means C is the sister of D, what is the relationship of D to B if A * B + C - D means A is the father of B, A is the brother of C, and C is the sister of D?

A. D IS B'S SISTER

In a class of 30 students, John is ranked 8th from the top. What is his rank from the bottom?

B. 23RD

Find the missing letter in the sequence M, N, O, ?, Q, R.

A. P