Fill in the blank space for the given series with the correct alternative.
$4, 5, 9, 18, 34, (\dots)$

Fill in the blank space for the given series with the correct alternative.
In the series $2, 6, 18, 54, \ldots,$ what will be the $8^{th}$ term?

Fill in the blank space for the given series with the correct alternative.
$9, 12, 11, 14, 13, (\ldots), 15$

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?

Study carefully the following arrangement of letters, digits and symbols to answer these

questions.

$M, 7 ,\&, 8, L ,P ,@ ,Q ,N ,\beta ,T ,Y ,3 ,2 ,= ,E ,\$ ,4 ,9 ,\#, G ,H ,5$

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

Find out the wrong term from the given series:
$445, 221, 109, 46, 25, 11, 4$