If A is the brother of B, and B is the sister of C, what is the relationship of A to C?

A. BROTHER

If X - Y means X is the sister of Y, X + Y means X is the brother of Y, and X × Y means X is the father of Y, what is the relationship of Z if X - Z + Y = true?

B. Z IS THE SISTER OF Y

A is the brother of B. C is the sister of A. How is C related to B?

A. SISTER

If X ÷ Y means X is the father of Y, Y * Z means Y is the daughter of Z, and Z + W means Z is the brother of W, what is the relationship of X to W?

C. UNCLE

If X is the daughter of Y and Y is the sister of Z, what is the relationship of X to Z?

A. NIECE