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

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 sixteenth to the right of the letter which is fourth to the left of $I$?

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 above alphabet is written in the reverse order,which will be the eighth letter to the right of $O$?

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

Arrange the given words in alphabetical order and select the one that comes in the middle.
Rigour,Rumour,Remove,Revive,Retrospect

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