Number of lettters skipped in between adjacent letters in the series increases by one.
Which of the following series observes this rule ?

D. IKNRW

The letter of the word NUMKIPP are in disorder. If they are arranged in proper order, the name of a vegetable is formed.
What is the last letter of the .word so formed ?

C. N

Number of the letters skipped in between adjacent letters of the series starting from behind are increased by one.
Which of the following series observes this rule ?

B. OMJFA

Arrange the given words in Alphabetical Order and tick the once that comes middle.

D. PASTE

Arrange the given words in Alphabetical Order and tick the once that comes middle.

B. DELIRIUM