How many $T$'s are there in the following sequence which are immediately preceded by $P$ but not immediately followed by $S$?
$S, T, P, Q, T, S, P, T, R, P, T, S, R, P, S, T, Q, P, T, R, P, T, M, P, T, S$

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

How many three-letter meaningful words can be formed from the letters of the word $TEAR$ beginning with $A$ without repeating any letter within that word?

After arranging the letters of the word $FOLK$ in alphabetical order,if each letter is substituted by the letter immediately preceding to it in the English alphabet,what will be the resultant form of the word?

If a meaningful word can be formed by rearranging the letters $USCALA$,the first letter of the word so formed is the answer. If no such word can be formed,the answer is $X$.

Each of the following questions is based on the following alphabet series.
$A, B, C, D, E, F, G, H, I, J, K, L, M$
$N, O, P, Q, R, S, T, U, V, W, X, Y, Z$
How many $A$'s are there in the following series which are immediately followed by $B$ as well as immediately preceded by $Z$?
$A, M, B, Z, A, N, A, A, B, Z, A, B, A, Z, B, A, P, Z, A, B, A, Z, A, B$