Fill in the blank space for the given series with the correct alternative.
$3, 8, 13, 24, 41, (...)$

Fill in the blank space for the given series with the correct alternative.
$3, 7, 15, 31, 63, (\dots)$

How many such $4$s are there in the following number series,each of which is immediately followed by $5$ but not immediately preceded by $3$?
$5, 4, 4, 3, 3, 4, 5, 4, 5, 5, 3, 4, 4, 3, 4, 5, 4, 3, 3, 5, 4, 5, 4, 3, 5, 4, 4, 3, 5, 4$

Choose the correct alternative to complete the series: $...acca....ccca...acccc....aaa$

Fill in the blank space for the given series with the correct alternative.
$1, 2, 3, 6, 9, 18, (\ldots), 54$

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

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

If all the letters in the arrangement are deleted, which of the following will be the third to the right of the $11^{th}$ element from the right end?