One term in the number series is wrong or missing. Find it.
$2, 3, 5, 8, 13, 34$

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

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

If the first element in the above arrangement exchanges its position with the element in the $26 th$ position and the second with the one in the $25 th$ position and so on, which of the following will be in the tenth position from the left after rearrangement?

To answer these questions study carefully the following arrangement of letters, digits and symbols.

$6,=, C,E, 3,8 ,G,L,M, 7, \star, @ ,P,R, 4, \#, \$, N,T, 5, S,V$

How many such digits are there in the arrangement each of which is immediately preceded by a letter?

Find out the wrong term from the given series:
$1, 5, 9, 16, 25, 37, 49$

Choose the correct alternative to fill in the blanks in the series: $b . . a b b e . . b b c a . . b c a b b . . a b$

Choose the correct alternative to complete the series:
$ac\_\_\_\_cab\_\_\_\_baca\_\_\_\_aba\_\_\_\_acac$