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

Fill in the blank space for the given series with the correct alternative.
$1, 1, 3, 9, 6, 36, 10, 100, (\ldots), 225$

Study the following arrangement carefully and answer the question given below:
$B, 2, I, J, K, 4, 3, H, 5, E, R, P, 6, N, A, 9, W, 8, T, U, 1, V, D, 7, F$
How many such numbers are there in the above arrangement,each of which is immediately preceded by a vowel and immediately followed by a consonant?

In the series $7, 14, 28, \ldots$,what will be the $10^{th}$ term?

Choose the correct alternative for the missing term:
$2 A 11, 4 D 13, 12 G 17, ?$

Find out the wrong term from the given series:
$3, 7, 15, 39, 63, 127, 255, 511$