Verbal Reasoning - Mental Ability Questions

In a certain code language, '-' represents 'x', '÷' represents '+', '+' represents '÷' and 'x' represents '-'. Find out the answer to the following question.

160 + 8 x 30 ÷ 4 - 6 = ?

A man travels 10 km towards west, then he takes a turn towards north-­east and travels 20 km in the direction. He again takes a turn towards south-­east and covers 5 km. Taking starting point as the origin, in which direction is he now?

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

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
RS, ZA, HI, ?

Kamal starts walking from his home facing west direction. After walking 10 km he takes a right turn and walks another 10 km. He takes another right turn and walks 10 km to reach his school. How far (in km) and in which direction is he from his home?

In the following question, select the related letters from the given alternatives.TRACK : MECTV : : POND : ?

In each of the following questions, four words have been given out of which three are alike in some manner, while the fourth one is different. Choose the word which is different from the rest.

In the following question, select the related number group from the given alternatives.
19 : 367 : : ? : ?