Verbal Reasoning - Mental Ability Questions

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.
Biological

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

HI, MN, RS, ?

Select the related number from the given alternatives.
3/7 : 7/3 :: 9/2 : ?

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.

0, 3, 8, ? , 24, 35

In each of the following questions three statements are given and these statements are followed by two conclusions numbered (1) and (2). You have to take the given three statements to be true even if they seem to be at variance from commonly known facts. Read the conclusions and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.
Statements:

All books are novels.
No novel is a magazine.
All magazines are newspaper.
Conclusions: 

I.No book is a magazine.
II. Some newspaper are novels.

In a certain code language, "ENERGETIC" is written as "ETICGENER". How is "CARTRIDGE" written in that code language?

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

XX, XOX, XXXX, XXOXX, XXXXXX, ?

In a certain code, 592 means 'grapes are sweet', 374 means 'I like oranges' and 267 means 'oranges are sour'. Which digit represents sour?