Fill in the blank space for the given series with the correct alternative.
$2, 6, 12, 20, 30, 42, 56, (\dots)$

Choose the correct alternative for the missing term in the series:
$QPO, SRQ, UTS, WVU, ?$

Study the following arrangement carefully and answer the question.
$O, 4, E, J, 5, T, 1, A, M, Q, 3, 8, N, I, K, 7, W, F, 6, S, 9, U, 2, Y, X$
Which of the following is exactly in the middle between $A$ and $S$ in the above arrangement?

These questions are based on the following letter/number/symbol arrangement. Study it carefully and answer the questions that follow.

$5, D,H,E, \star, 7,9, \$ ,F,I ,6 ,R ,\% ,L ,1 ,A,J, 3, B, \# ,4 ,@ ,K,P ,8, U,M, 2$

What will come in place of the question marks $(?)$ in the following series based on the above arrangement?

$E,D,H ,9 ,\star, 7, I,\$,F, ?, ?, ?$

Find out the wrong term from the given series.
$10, 14, 28, 32, 64, 68, 132$

What would come next in the following number sequence?
$2, 3, 2, 3, 4, 2, 3, 4, 5, 2, 3, 4, 5, 6, 2, 3, 4, 5, 6, 7, 2, 3, 4$