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?
$A, B, C, D, E, Z, Y, X, W, V, Q, R, S, T, U, F, G, H, I, J, K, L, M, N, O, P, A$

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

If the first and second letters in the word $DEPRESSION$ were interchanged,also the third and the fourth letters,the fifth and the sixth letters and so on,which of the following would be the seventh letter from the right?

The positions of how many alphabets will remain unchanged if each of the alphabets in the word $WALKING$ is arranged in alphabetical order from left to right?

In a telephone directory,which of the following names will appear in the middle $?$
Ssgewat,Segvan,Sftjevar,Salwar and Sajewet.

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