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

Select the series in which the letters skipped in between adjacent letters do not decrease in order.

How many meaningful English words can be formed by using any two letters of the word $GOT$?

Arrange the given words in alphabetical order and choose the one that comes in the middle.

In the following letter sequence,how many $n$'s are followed by $m$ but not preceded by $h$?
$a, g, r, h, t, n, m, b, c, n, m, l, b, u, v, n, m, h, e, r, h, n, m, g, f, e, h, n, m, e, c, n, m, w, q, a, n, m, h, l, b$

If it is possible to make a meaningful word with the fourth,the seventh,the eleventh and the thirteenth letters of the word $CATEGORISATION$,which of the following will be the first letter of that word? If no such word can be made,give $X$ as the answer. If more than one such word can be made,give $M$ as the answer.