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., G can be represented by 04, 40, etc., and 'K' can be represented by 56, 75, etc. 

Similarly you have to identify the set for the word 'NILE'.

If mathematical operators '-' and '/' are interchanged, then the value of 15 x 4 ÷ 15 - 11 x 33 ÷ 98 is

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

AK, DQ, GV, JZ, ?

In the following question, select the related word from the given alternatives.
Sheep : Lamb : : Cow : ?

Select the number which can be placed in the given question figure?

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

250, 370, 394, 400, ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series. GJT, IMR, KPP, MSN, ?

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