Choose the alternative that will complete the series:
$aku, fpz, kue, (\ldots), ueo, zjt$

What should come next in the following letter series?
$H, G, F, E, D, C, B, A, G, F, E, D, C, B, A, F, E, D, C, B, A, ?$

Study of the following arrangement carefully and answer the questions given below.

$Q,E ,* ,P,M ,8 ,R,A ,@ ,C ,9 ,U,H,W, \# ,J,Z, ,S, \beta, Y,N ,5 ,\$ ,G,I,T$

Which of the following is exactly in the middle between the twelfth from the right and the seventh from the left end?

Study the following arrangement carefully and answer the question.
$O, 4, E, J, 5, T, 1, A, M, Q, 3, 8, N, I, K, 7, W, F, 6, S, 9, U, 2, Y, X$
Four of the following five are alike in a certain way based on their positions in the above arrangement and so form a group. Which is the one that does not belong to this group?

Study the following arrangement carefully and answer the questions given below:

$7, R,E,T ,4 ,A ,9 ,\% ,D,F, 1, U, \# ,B ,@ ,8 ,H,I ,$©$, W,M, \star, 3,2 ,V ,\$ ,5 ,N,P,6, Q$

How many such consonants are there in the above arrangement, each of which is immediately preceded by a consonant and immediately followed by a number?

Find out the wrong term from the given series.
$11, 2, 21, 3, 32, 4, 41, 5, 51, 6$