If a meaningful word can be formed by rearranging the letters $USCALA$,the first letter of the word so formed is the answer. If no such word can be formed,the answer is $X$.

Arrange the given words in alphabetical order and identify the one that comes last:
$Accumulate, Acquit, Actuate, Abandon, Achieve$

$A$ 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.
$R, T, E, O, D, P$
$1, 2, 3, 4, 5, 6$

Which of the following groups of alphabets should replace the blank spaces so that the group of alphabets,given in bold,follow a logical pattern from the preceding and the following group of alphabets?
$bw\_\, yza\;\; d stuv \_\, \_opqre$

If any two letters in the word $'PRISON'$ have as many letters between them in the word as there are in the English alphabet,they form an alpha-pair. How many such alpha-pairs are there in the word $'PRISON'$?

If all the letters in the word $MERCIFUL$ are rearranged in alphabetical order and substituted by the alphabet preceding them in the English alphabet,what will be the new arrangement of letters?