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

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?

Which letter will be sixth to the right of the third letter from the left of the letter which is exactly in the middle of the letters in the series given below?
$A, B, C, D, E, Z, Y, X, W, V, Q, R, S, T, U, F, G, H, I, J, K, L, M, N, O, P, A$

If the first and third letters in the word $NECESSARY$ were interchanged,also the fourth and the sixth letters,and the seventh and the ninth letters,which of the following would be the seventh letter from the left?

Number of letters skipped in between the adjacent letters in the series are consecutive even numbers. Which of the following series observes this rule?

How many pairs of letters are there in the word $SHIFTED$ each of which has as many letters between its two letters as there are between them in the English alphabet?