In each of the letter series, find the missing letters.

b b c – b – c a b b – a – b c a 

Direction: Study the following arrangement carefully and answer the questions given below.
C 3 # R A T 1 E J $ K @ F U 5 4 V I 6 © D 8 * H N 7 δ 2 W

How many such numbers are there in the above arrangement each of which is immediately preceded by a letter but not immediately followed by a letter? 

Direction: From the given alternatives select the word which cannot be formed using the letters of the given word.
IMPASSIONABLE

If it is possible to make only one meaningful word with the first, fifth and the tenth letters of the word ‘AUTOMOBILE’, which would be the second letter of the word from the right? If more than one such word can be formed, give ‘Y’ as the answer. If no such word can be formed, given ‘Z’ as your answer.

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
m_ane_nma_men_eam_an 

In the English alphabet series, how many consonants are there between the second and the last vowel?

Direction: What should come in place of the questions mark (?) in the following letter series?
a, k, e, o, i, s,  ? __ ? _ , q , a , u , e