Verbal Reasoning - Mental Ability Questions

Select the related word/letters/number from the given alternatives.

ACEG : ZXVT :: IKMO : ?

Select the related word from the given alternatives.

Pencil : Lead :: Pen : ?

In the following question, select the missing number from the given series.
13, 27, 56, 115, ?

Which number will complete the series?

6 , 8 , 17 , 19 , 28 , 30 , ?

-20 , -16 , -12 , -8 .... 

In the sequence above, each term after the first is 4 greater than the preceding term. Which of the following could not be a term in the sequence? 

How many such pairs of letters are there in the word ORDINAL each of which has as many letters between them in the word as in the English alphabet?

Three of the following four are alike in a certain way and hence form a group. Which is the one that does not belong to that group?

Study the following information carefully and answer the questions given below it.

There are 6 persons in a family. Chitra is the sister of Rakesh. Badhri is the brother of Eniya's husband. Dilip is the father of Arun and grandfather of Rakesh. There are two fathers, three bothers and a mother in the group.

Which of the following is a group of brothers?