If 'MOUSE' is coded as 'NPVTF', how is 'RAT' coded?

A. SBU

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

A. SISTER

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

B. MOTHER

X is the father of Y. Y is the mother of Z. How is Z related to X?

A. GRANDSON/GRANDDAUGHTER

Select the odd pair of words.

A. PIANO - MUSIC