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

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

'$= N$' is to '$T 1$' and '$B 3$' is to '$G 4$' in the same way as '$EB$' is to

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?

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

Tick the number that will come next in the following sequence:
$4, 6, 12, 14, 28, 30, (\ldots)$

Fill in the blank space for the given series with the correct alternative.
$563, 647, 479, 815, (...)$

Choose the correct alternative for the missing term:
$J2Z, K4X, I7V, ?, H16R, M22P$

Choose the correct alternative answer

$a...bbbc...aab....cca....bbcc$