Verbal Reasoning - Mental Ability Questions

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

234 x 9 - 12 + 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'?

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

Select the related word/letters/number from the given alternatives. MOLTU : ? :: HOPE : IPQF

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Scrupulous

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

15, 26, 48, 81, 125, ?

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

7 x 10 ÷ 30 - 2 + 6 = ?

In a certain code, 327 means 'don't cut tree', 635 means 'plant one tree', 138 means 'tree gives shade' and 4953 means 'we must plant tree'. Which digit represents 'shade'?