Choose the correct alternative to complete the series: $...bcc... ac..aabb... ab ...$

These questions are based on the following set of numbers.
$738, 495, 329, 653, 849$
If $1$ is subtracted from the last digit of each number and then the numbers are arranged in descending order,which number will be the first?

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

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

How many such digits are there in the arrangement each of which is immediately preceded by a letter?

The following questions are based on the five three-digit numbers given below:
$972, 526, 487, 359, 251$
If $1$ is subtracted from the last digit of each of the above numbers,the sum of the digits of how many of them are prime numbers?

Choose the correct alternative for the missing term in the series: $G 4 T, J 10 R, M 20 P, P 43 N, S 90 L$.

Fill in the blank space for the given series with the correct alternative.
Which of the following will not be a number of the series $1, 8, 27, 64, 125, \ldots$?