Verbal Reasoning - Mental Ability Questions

In the following question, select the related letters from the given alternatives.
BPTW : CQUX : : CHNS : ?

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, ?

The orthocentre of a triangle lies on one of the sides. Then______

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?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.HPA, FMZ, DJY, BGX, ?

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'.

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

JN, OR, UW, BC, ?