The number of letters skipped between adjacent letters in the series follows the order of $2, 5, 7, 10$. Which of the following series observes the rule given above?

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 should be the ninth letter to the left of the ninth letter from the right,if the first half of the given alphabet is reversed?

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

Choose one word out of the given alternatives,which cannot be formed from the letters of the word $CONSULTATION$.

$A$ 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.
$T, I, R, B, H, G$
$1, 2, 3, 4, 5, 6$

$A$ meaningful word is formed if we take the first,fourth,fifth,seventh,tenth,eleventh,and twelfth letters of the word $FELICITATIONS$. Which of the following will be the fifth letter of that word from the right end?