Arrange the given words in alphabetical order and choose the one that comes in the second place:

How many such pairs of letters are there in the word $REGIONAL$,each of which has as many letters between them in the word as they have between them in the English alphabet?

$A$ group of letters is given which are numbered $1, 2, 3, 4, 5$. Below are given four alternatives containing combinations of these numbers. Select the combination of numbers so that the letters arranged accordingly form a meaningful word.
$R, P, E, D, I$
$1, 2, 3, 4, 5$

If the first three letters of the word $COMPREHENSION$ are reversed,then the last three letters are added and then the remaining letters are reversed and added,then which letter will be exactly in the middle?

The letters in the series are placed such that the number of letters skipped between adjacent letters increases by a constant value. Which of the following series observes this rule?

How many pairs of letters are there in the word $DONATE$ which have as many letters between them as there are in the alphabet?