Find which one word cannot be made from the letters of the given word: $TURBULENCE$.

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.

How many meaningful words can be made from the letters $AEHT$,using each letter only once?

Find which one word cannot be made from the letters of the given word: $RECREATION$.

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

Find which one word cannot be made from the letters of the given word.
$UNCONSCIOUS$