If M is the father of N and N is the son of O, what is the relationship between M and O?

B. HUSBAND AND WIFE

If the input is '1 3 2', what is the output after sorting the numbers in ascending order?

A. 1 2 3

Which number is different from the others?

C. 22

In the sequence 1, 3, 6, 10, what is the next number?

C. 21

Find the missing letter in the series: b, d, f, h, ?

A. J