If we make a meaningful word with the first,fourth,ninth and fourteenth letters of the word $ADMINISTRATION$,which of the following will be the third letter of that word from the right end of that word?

How many meaningful English words can be made with the letters $ARTSE$ using each letter only once in each word?

Each of the following questions is based on the following alphabet series.
$A, B, C, D, E, F, G, H, I, J, K, L, M$
$N, O, P, Q, R, S, T, U, V, W, X, Y, Z$
If the alphabet is written in the reverse order and every alternate letter starting with $Y$ is dropped,which letter will be exactly in the middle of the remaining letters of the alphabet?

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

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

Each of the following questions is based on the following alphabet series.
$A, B, C, D, E, F, G, H, I, J, K, L, M$
$N, O, P, Q, R, S, T, U, V, W, X, Y, Z$
If the given alphabet is arranged in reverse order,which letter will be the eighth letter to the left of the seventh letter counting from the right end?