Verbal Reasoning - Mental Ability Questions

If "-" means "plus", "x" means "divided by", "÷" means "multiply" and "+" means "substraction", then

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

12 x 6 ÷ 5 + 4 = ?

In a certain code, 'book is big' is written as 756; 'big is story' is 764 and 'story book is interesting' is 4356. Which digit represents 'interesting'?

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

m_o_mn_p_no_

Select the missing number from the given responses.

The weights of 4 boxes are 70, 50, 30 and 90 kilograms. Which of the following cannot be the total weight,in kilograms, of any combination of these boxes and in a combination a box can be used only once?

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

? , YV, BY, FC

X drives 30 km south, then turns right and drives 30km, then turns left and drives 20 km and then turns left and drives 30 km. How far is X from his/her initial position?