Verbal Reasoning - Mental Ability Questions

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

If Y is the brother of X, Y is Z's son then Z's father is X's ___.

If PRINTER is $#@*!&#, then INTERPRETER is

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

KHQ, HEN, EBK, ?, YVE

A word is represented by only one set of numbers given in the alternatives are represented by two classes of alphabets as shown in the given two matrices. 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, for example 'F' can be represented by 14, 31 etc and 'U' can be represented by 86, 97 etc. Similarly, you have to identify the set for the word 'SACK'.

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

FH, KM, PR, UW,?

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

E, I, M, ?, U, Y

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 shown in the given two matrices. 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, for example 'B' can be represented by 23, 42 etc and 'N' can be represented by 95, 96 etc. Similarly, you have to identify the set for the word 'SALT'.