Verbal Reasoning - Mental Ability Questions

In the following question, select the related letters from the given alternatives.

NPBG : OQCH : : AJOT : ?

Find the odd word/letters/number from the given alternatives.

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

Bit, Byte, Kilobyte, Megabyte, ?

In a certain code language, if SIGN is coded as 8367 and DIRECT is coded as 134259, then SIREN will be coded as

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
72 x 9 - 14 + 2 = ?

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

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

Hut, Cottage, Bungalow, ?

Five people A,B,C,D and E are sitting in a row facing you such that D is on the left of C and B is on the right of E. A is on the right of C and B is on the left of D. If E occupies a corner position, then whose sitting in the centre?