Each of the following questions is based on the following alphabet series.
$A, B, C, D, E, F, G, H, I, J, K, L, M$
$N, O, P, Q, R, S, T, U, V, W, X, Y, Z$
Which letter is exactly midway between $H$ and $S$ in the given alphabet?

In the following alphabet series,which letter is eighth to the left of the sixteenth letter from the right end?
$A, B, C, D, E, F, G, H, I, J, K, L, M$
$N, O, P, Q, R, S, T, U, V, W, X, Y, Z$

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?

If all the letters in the word $PRINCE$ are rearranged in alphabetical order,then how many letter$(s)$ will remain unchanged?

If in the word $DISTURBANCE$,the first letter is interchanged with the last letter,the second letter is interchanged with the tenth letter,and so on,which letter would come after the letter $T$ in the newly formed word?

$A$ 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.
$K, A, T, C, E, L$
$1, 2, 3, 4, 5, 6$