Verbal Reasoning - Mental Ability Questions

In the question, a word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as in two matrices given below. The columns and rows of Matrix I are numbered from 0 to 4 and that of Matrix II are
numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column, e.g., 'A' can be represented by 03, 55, etc., and 'P' can
be represented by 10, 99, etc.
Similarly you have to identify the set for the word 'VENU'

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

Nitrogen fixation, Ammonification, Nitrification, ?

Find the odd word/letters/number pair from the given alternatives.

In the word ACCUMUATES, if the 1st letter is interchanged with 2nd, 3rd with 4th, 5th with 6th, 7th with 8th and 9th with the 10th, then the 6th letter from the left will be

A man looks at a portrait and says, " She is my Father-in-law's only grand-daughter". How is the girl in the portrait related to this man's wife?

In the following question, select the related letter pair from the given alternatives. MOK : KLG : : ? : ?

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

CL,HQ,MV,?

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

AHR, HOY, OVF, VCM, ?