Insect order of tea mosquito bug is:

Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

_1 m_j_m k_ _m k j 1 m_

Answer the questions based on the information given below.

TOL     PUB    PEN    GEB    RIA

Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it? 

_ Y _ X_ Z X _ Z X _ _ X Y _

If in the words, all the letters are arranged in English alphabetical order within the word, how many words will begin with a vowel?

Select the odd letters from the given alternatives?

Select the letter-cluster that can replace the question mark (?) in the following series. CXB, HUI, MRP, ROW, ?