What comes next in the series: M, O, Q, S, ?

B. T

If 2 : 4 is related as 3 : ?

A. 6
Posted in:  Number Analogy -  Analogy -  Verbal Reasoning

Find the missing number in the series: 5, 10, 20, 40, ?

D. 80

Teacher is to School as Doctor is to ?

A. HOSPITAL

What is the value of 7 squared?

B. 49
Posted in:  Numbers -  Arithmetic -  Mathematics