Verbal Reasoning - Mental Ability Questions

There are 150 residents in a society. Out of them, 50 residents own a motorcycle, 60 residents own a car and 20 residents own both a car and a motorcycle. How many residents neither own a motorcycle nor a car?

If L stands for +, M stands for -, N stands for x and P stands for /, then 8 N 9 L 60 P 3 M 13 = ?

In the following question, select the odd word pair from the given alternatives.

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

3, 7, 13, 27, 53, ?

From the given alternative words, select the word which cannot be formed using the letters of the given word:

EXORBITANT

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
2, 10, 30, 68, ?

Nurse : Ward :: Teacher : ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

RST, XYZ, DEF, ?