Find out the missing term for the given series from the given alternatives:
$HS, JQ, LO, NM, (?)$

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

$6, N,P ,=,@, 7,1 ,\&, R, T, 3, L, ,B, \star, E ,4,\# , 8, G,H ,\$, 5, K,M ,?, 2, D,C$

How many such digits are there in the arrangement each of which is immediately followed by a symbol but not immediately preceded by a letter?

Choose the correct alternative to complete the series: $a . b e . . c . . a b b . . . b c a . . . .$

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 symbols are there in the arrangement each of which is immediately preceded by a number?

These questions are based on the following arrangement. Study it carefully and answer the questions.
$J, \star, R, 3, P, L, 2, \#, I, N, 7, O, C, @, K, 5, D, =, M, \$, 6, B, >, A, Q, 4$
What will come in place of the question mark in the following series based on the above arrangement?
$PRJ, \# L3, 7I2, @ON, ?$

Fill in the blank space for the given series with the correct alternative.
$134, 245, 356, 467, (...)$