Arrange the given names in the order in which they would occur in a telephone directory and choose the one that comes in the middle.

In the following list of letters,how many $O$'s are followed by $Q$'s but not preceded by $D$'s?
$D, O, Q, O, D, Q, O, D, O, D, Q, D, O, Q, D, S, D, Q, P$
$O, Q, D, S, S, S, D, O, Q, O, Q, D, O, Q, D, D, O, Q$

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

$A$ 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 that combination of numbers so that the letters arranged accordingly form a meaningful word.
$D, A, I, M, E, N$
$1, 2, 3, 4, 5, 6$

If there are two such letters in the word $BOXES$ that have as many letters between them in the word as in the English alphabet,then which letter comes first?

The letters in the series are placed such that the number of letters skipped between adjacent letters increases by a constant value. Which of the following series observes this rule?