Arrange the given words in alphabetical order and select the one that comes in the middle.
Rigour,Rumour,Remove,Revive,Retrospect

$A$ group of letters is given which are numbered $1, 2, 3, 4, 5$ and $6$. 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.
$C, E, L, S, M, U$
$1, 2, 3, 4, 5, 6$

How many pairs of letters in the word $CHAIRS$ have as many letters between them in the word as in the alphabet?

If it is possible to make only one meaningful word from the second,the third,the sixth and the eighth letters of the word $DEVIATION$,the first letter of the meaningful word is your answer. If more than one such word can be formed,your answer is $A$,and if no such word can be formed,your answer is $B$.

$A$ group of letters is given which are numbered $1, 2, 3, 4, 5, 6$ and $7$. 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.
$J, C, O, P, T, E, R$
$1, 2, 3, 4, 5, 6, 7$

In the word $PARADISE$,how many pairs of letters are there which have as many letters between them in the word as in the alphabet?