In a telephone directory,which of the following names will appear in the middle $?$
Ssgewat,Segvan,Sftjevar,Salwar and Sajewet.

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?

How many meaningful words can be made from the letters $ACER$ using each letter only once?

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.

$A$ 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.
$N, A, E, H, L, D$
$1, 2, 3, 4, 5, 6$

If it is possible to form a word with the first,fourth,seventh and eleventh letters in the word $SUPERFLUOUS$,write the first letter of that word. Otherwise,$X$ is the answer.