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

Number of letters skipped in between adjacent letters in the series are multiples of $3.$ Which of the following series observes this rule?

Each of the following questions is based on the following alphabet series.
$A, B, C, D, E, F, G, H, I, J, K, L, M$
$N, O, P, Q, R, S, T, U, V, W, X, Y, Z$
Which letter should be fourth to the left of the twelfth letter from the right if the second half of the given alphabet is reversed?

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

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 $'PRISON'$?

Which three letters have the same distance as they have in the alphabetical order although they have changed places?