If HOSPITAL is written as 32574618 in a certain code, how would POSTAL be written in that code? 

Out of four figures which figure will best represent the relationship among st the classes:
(1) Sparrow
(2) Birds
(3) Mice

A and B are brothers. E is the daughter of F. F is the wife of B. What is the relation of E to A? 

If PKROK code with 72962 and KRRPK coded with 29972 then how will be coded NJMLZ?

How many triangles are there in the given figure?

A, B, C, D, E, F, G and H are sitting around a circular table facing the centre but not necessarily in the same order. C is an immediate neighbour of both G and A. E sits second to left of C. Two people sit between E and H. B is an immediate neighbour of G. Only one person sits between B and F. Who amongst the following is an immediate neighbour of both B and F?

Given set
10.5, 15.0, 21.5 

Statement: Increasing levels of air pollution is creating health hazards for people living in the cities.
Courses of action :
I. All industries should be shifted immediately to the outskirts of the cities.
II. Transport authorities should immediately ban all the vehicles running on petrol.