How many such digits are there in the number $5831649$ each of which is as far away from the beginning of the number as when the digits are rearranged in ascending order?

These questions are based on the following set of numbers.
$738, 495, 329, 653, 849$
If $1$ is subtracted from the last digit as well as the first digit and then the second and third digits are interchanged,which number will be the second if arranged in ascending order?

Find out the wrong term from the given series: $8, 27, 125, 343, 1331$.

Fill in the blank space for the given series with the correct alternative.
$19, 2, 38, 3, 114, 4, (...)$

These questions are based on the following arrangement. Study it carefully and answer the questions.
$8, H, \%, 3, 7, T, A, 4, \#, 6, B, I, @, R, 1, Q, \star, L, E, 2, K, \,U,5,9$
Four of the following five are alike in a certain way on the basis of their positions in the above arrangement and so form a group. Which is the one that does not belong to the group?

Fill in the blank space for the given series with the correct alternative.
$6, 11, 21, 36, 56, (\ldots)$