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

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

If you pick up from the following alphabet,the sixth and the fourteenth letters from your right and then pick up the fifth and twentieth letters from your left and form a meaningful word,what is the first letter of that word?
$A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z$

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 second half of the given alphabet is written in reverse order,which letter will be seventh to the right of the twelfth letter from the left end?

$A$ group of letters is given which are numbered $1, 2, 3, 4, 5$ and $6$. Below are given four alternatives containing combinations of these numbers. Select the combination of numbers so that the letters arranged accordingly form a meaningful word.
$T, E, L, S, C, A$
$1, 2, 3, 4, 5, 6$

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