How many such digits are there in the number $5231698$ 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 added to the first digit of each number and $1$ is subtracted from the second digit,which number will be the largest?

Find out the wrong term from the given series.
$8, 13, 21, 32, 47, 63, 83$

Study the following arrangement carefully and answer the questions given below:
$R, 4, E, J, 5, T, 1, A, M, Q, 3, 8, N, I, K, 7, W, F, 6, D, 9, U, 2, Y, V$
Four of the following five are alike in a certain way based on their positions in the above arrangement and so form a group. Which is the one that does not belong to this group?

The positions of the first and the fifth digits in the number $53216894$ are interchanged. Similarly,the positions of the second and the sixth digits are interchanged,and so on. Which of the following will be the second from the right end after the rearrangement?

Choose the alternative that will complete the series:
$aku, fpz, kue, (\ldots), ueo, zjt$