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

If the positions of the fifth and twelfth letters of the word $GLORIFICATIONS$ are interchanged; and likewise the position of the fourth and fourteenth letters,the third and tenth letters,the second and eleventh letters and the first and thirteenth letters are interchanged,which of the following will be the twelfth letter from the right end?

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

How many $D$'s are there in the following series which are immediately followed by $W$ but not immediately preceded by $K$?
$K, D, C, W, K, D, W, N, K, G, D, W, W, D, H, K, V, D, W, Z, D, W$

Study the letter series given below and answer the question that follows:
$H, D, Y, S, M, W, N, B, Q, P, O, C, R, T, B, L, Z, V, E, G, U, F$
Which is the only letter that occurs twice?

If the positions of the third and tenth letters of the word $DOCUMENTATION$ are interchanged,and likewise the positions of the fourth and seventh letters,and the second and sixth letters are also interchanged,which of the following will be the eleventh letter from the right end?