How many independent words can $STAINLESS$ be divided into without changing the order of the letters and using each letter only once?

Arrange the given words in the sequence in which they occur in the dictionary and then choose the correct sequence.
$1.$ Intrinsic $2.$ Intrude $3.$ Intricate $4.$ Introvert $5.$ Intrigue $6.$ Introduce

In which of the following letter sequences,there is a letter leaving two letters of the alphabet in order,after the letters placed at odd-numbered positions and leaving one letter of the alphabet in order after the letters placed at even-numbered positions?

$A$ group of letters is given which are numbered $1, 2, 3, 4, 5$. 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.
$R, U, S, G, A$
$1, 2, 3, 4, 5$

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

Arrange the given words in alphabetical order and choose the one that comes in the second place.