If the positions of the first and sixth letters of the word $BENEFICIAL$ are interchanged; similarly the positions of the second and seventh letters are interchanged and so on,which letter will be third from the right end after rearrangement?

If in the word $CERTIFICATE$,the first and the seventh letters are interchanged,similarly the second and the eighth letters are interchanged and so on up to the fifth and eleventh letters are interchanged,then which letter will be third to the right of sixth from the right end?

Arrange the given words in alphabetical order and choose the one that comes first.
Shrill,Signature,Shrine,Sight,Shrink

$A$ 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.
$R, E, S, T, L, U$
$1, 2, 3, 4, 5, 6$

Arrange the given words in alphabetical order 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?
$D, O, Q, O, D, Q, O, D, O, D, Q, D, O, Q, D, S, D, Q, P$
$O, Q, D, S, S, S, D, O, Q, O, Q, D, O, Q, D, D, O, Q$