Teacher is to Student as Doctor is to ?

A. PATIENT

In the series 2, 4, 6, ?, 10, what is the missing number?

A. 8

Artist is to Painting as Author is to ?

A. BOOK

In the sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, how many times does the number 5 occur?

A. 1

What character should replace the question mark in the sequence: A, B, C, ?, E?

A. D