If P + Q means P is the sister of Q, P - R means P is the mother of R, and R × S means R is the son of S, what is the relationship of Q to S in the expression P + Q - R × S?

D. Q IS S'S NIECE

Pencil is to Write as Brush is to ?

A. PAINT

What is the numerical code for the word 'FISH'?

A. 6-9-19-8

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

D. SIBLING

Which number is different from the others?

C. 24