Choose the correct alternative to complete the series: $........babbba...a........$

Find out the wrong term from the given series:
$105, 85, 60, 30, 0, -45, -90$

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?

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

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

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

If all the symbols in the arrangement are removed, then which of the following will be the $7^{th}$ to the left of the $13^{th}$ element from the left end?

Find the wrong number in the series.
$3, 8, 15, 24, 34, 48, 63$

Fill in the blank space for the given series with the correct alternative.
$11, 10, (...), 100, 1001, 1000, 10001$