If it is possible to make a meaningful word with the fourth,the eighth and the tenth letters of the word $COUNTERACT$,which of the following will be the last 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.

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

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 $X$.

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?

If it is possible to make only one meaningful English word with the third,the seventh,the eighth and the tenth letters of the word $PREDICAMENT$,which of the following will be the third letter of that word? If no such word can be made,give $X$ as the answer and if more than one such word can be made,give $Y$ as the answer.

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