Verbal Reasoning - Mental Ability Questions

If the given interchanges namely signs + and / and numbers 2 and 4 are made in signs and numbers, which one of the following would be correct?

The weights of 4 boxes are 90, 40, 80 and 50 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 and B are standing at place "P". They start moving in the opposite directions at the speed of 5 Kmph and 4 Kmph respectively. What will be the distance between them after 3 hours?

Nitin ranks 23rd from the top in a class of 42. What will be his rank from the last?

Choose the pair which is related in the same way as the words in the first pair from the given choices.

DOG : KENNEL :: BEE : ___

Select the missing number from the given options.

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

Acute angle, right angle, obtuse angle, ?

In the question, 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 in two matrices given below. 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, e.g., 'C' can be represented by 04, 40, etc., and 'K' can be represented by 56, 75, etc.
Similarly you have to identify the set for the word 'NICE'.