Fill in the blank space for the given series with the correct alternative.
$212, 179, 146, 113, (\ldots)$

Study the following arrangement carefully and answer the question given below:
$R, 4, E, J, 5, T, 1, A, M, Q, 3, 8, N, I, K, 7, W, F, 6, D, 9, U, 2, Y, V$
Which of the following is the fourth to the right of the tenth from the right end of the above arrangement?

Complete the given series by selecting the correct alternative: $2, 6, 12, 20, 30, ?$

Second and third digits of each number given below are interchanged. Then,the $1st$ and the last digits of each new number thus formed are interchanged. Which of the following numbers then will be the highest number among the five?
$273, 372, 438, 184, 526$

Fill in the blank space for the given series with the correct alternative.
$2, 3, 5, 7, 11, (\ldots), 17$

Find the missing term for the given series from the given alternatives:
$DCXW, FEVU, HGTS, ?$