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. 1,3,7,13,21,?

If DIJOB means CHINA, then the last letter of the word got by decoding KBQBO is

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., 'C' 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 'NICE'.

Select the missing number from the given options?

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

AZ, BY, CX, DW, ?

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

blg, fpk, jto, n?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

ab_bc_bb_ _abb_c

R is P's father's nephew. Sis P's cousin but not the brother of R. How is S related to R?