Study the following arrangement carefully and answer the questions given below:

$7, R, E, T, 4, A, 9, \%, D, F, 1, U, \#, B, @, 8, H, I, \copyright, W, M, \star, 3, 2, V, \$, 5, N, P, 6, Q$

Which of the following is the fourth to the left of the twelfth from the left end?

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?

Study the following arrangement carefully and answer the questions given below:
$R, 4, E, J, 5, T, 1, A, M, Q, 3, 8, N, I, K, 7, W, F, 6, D, 9, U, 2, Y, V$
If all the numbers in the above arrangement are dropped,which of the following will be the ninth to the left of $D$?

Find the missing letters for the given series from the given alternatives:
$aaa....bb....aab.....baaa....bb$

Fill in the blank space for the given series with the correct alternative.
$2, 5, 11, 23, 47, (\ldots)$

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