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

b b c – b – c a b b – a – b c a 

QAR, RAS, SAT, TAU, ? 

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

Direction: Study the following arrangement carefully and answer the given question below. 

S D 9 5 E # K 6 T I 8 P 1 % A 2 C λ L M U3 W @ N 4 © J $ 7 F B 

How Many such vowels are there in the above arrangement each of which is immediately followed by a numeral and immediately preceded by a consonant?

In each of the following question , find the missing letters from the given response.
HIIJ, IJJK, JKKL,  KLLM,  LMMN, ?

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 

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