If the digits of the number $5726489$ are arranged in ascending order,how many digits will remain at the same position?

Choose the correct alternative to complete the series: $c _ b b b _ a b b b b _ a b b b b _ a b$

Choose the correct alternative for the missing term.
$C4X, F9U, I16R, ?$

These questions are based on the following arrangement. Study it carefully and answer the questions.

$J ,\star, R, 3, P,L ,2 ,\# ,I,N, 7, O,C, @ ,K, 5, D, =, M, \$, 6, B, > ,A ,Q ,4$

How many such symbols are there in the above arrangement each of which is immediately followed by a consonant and immediately preceded by a number?

Find out the missing term for the given series from the given alternatives.
$AYD, BVF, DRH, ?, KGL$

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?