Verbal Reasoning - Mental Ability Questions

Select the related word/letters/number from the given alternatives.
DI : M : : CR : ?

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

a_d_bd_ab_dd

Starting from a point, a person travels 3 km towards east and turns left and travels 4 km. Then again he turns to left by 45° and moves straight. Which direction is he facing now?

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

? , 9, 19, 39, 79

If ' + ' means minus , ' - ' means multiplication , ' ÷ ' means plus , and ' x ' means division , then 15 - 3 + 10 x 5 ÷ 5

From the given alternative words, select the word which cannot be formed using the letters of the given word:
PRONOUNCEMENT

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

1.5, 9/4, 3, ? , 4.5, 21/4

If 'HARBOUR' is written as 'IBSCPVS' , how is 'HABITAT' written in that code?