Verbal Reasoning - Mental Ability Questions

The weights of 4 boxes are 30, 40, 50 and 100 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once?

Find the missing number?

In the following question, select the related letter pair from the given alternatives.PIR : OHQ : : ? : ?

 In a row of boys, Rahul’s position from the right end is 39th and Pankaj’s position from the left end is 53rd. After interchanging their position, Rahul’s position becomes 64th from the right end. How many boys are there in the row?

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
-7.25, -5.75, -4.25, -2.75, ? , 0.25

RHYTHM is related to MUSIC in the same way as DESIGN is related to

In the following question, select the missing number from the given series.672, 666, 660, 654, ?

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

68, 72, 65, 69, 62, 66, _?__