Verbal Reasoning - Mental Ability Questions

If 'x' means '-', '-' means 'x', '+' means '/' and '/' means '+', then what is the value of 15 - 2 / 900 + 90 x 100?

The weights of 4 boxes are 20, 40, 50 and 30 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?

The weights of 4 boxes are 80, 60, 90 and 70 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes?

If a mirror is placed on the line MN, then which answer figures is the right image of the given figure?

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

Laugh, Alter, Melts, Realm, Muesli, ?

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

ENDEAVOUR

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

A word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as shown in the given two matrices. The columns and rows of Matrix-I are numbered from 0 to 4 and that of Matrix-II are numbered from 5 to 9. A letter from these matrices can be represented first  by its row and next by its column ,for example 'F' can be represented by 32,42 etc and 'M' can be represented by 88,68 etc. similarly,you have to identify the set for the word ''TEST''.