Verbal Reasoning - Mental Ability Questions

If MENTOR = NVMGLI then PROFESSOR =

In the following question, various terms of an alphanumerical series are given with one or more terms missing as shown by (?). Choose the missing terms out of the given alternatives. P3C, R5F, T8I, V12L, ?

If x = √8 - √7, y = √6 - √5 and z = √10 - 3, which of the following is true  ?

In the following question, select the missing number from the given series.

19, 25, 32, 38, 45, 51, ?

A family consists of six members P, Q, R, X, Y and Z. Q is the son of R but R is not mother of Q. P and R are a married couple. Y is the brother of R. X is the daughter of P. Z is the brother of P. How many female members are there in the family ? 

In the following question, select the missing number from the given series.

13, 16, 20, 23, 27, ?

Hemavathi cut a cake into two halves and cuts one half into smaller pieces of equal size. Each of the small pieces is fifteen grams in weight. If she has nine pieces of the cake in all with her, how heavy was the original cake ?

What is the time required to punch 1500 cards of 45 column each at the rate of 9,000 punches per hour ?