> 
> Six Boys – S, R, V, A, H and K – are ranked on
>  the basis of their weight, height and age such that the heaviest
>  person is ranked 1 and the lightest is ranked 6, the tallest is ranked
>  1 and the shortest is ranked 6, and the oldest is ranked 1 and the
>  youngest is ranked 6. Rank 1 is the highest rank and
>  rank 6 is the lowest rank. Furthermore, it is known that:
> 
> 
> 1. Only for S, the ranks on the three parameters are consecutive integers.
> 2. S is heavier than both V and K. The rank of S in age is lower than that of R in height.
> 3. R is neither the oldest nor the youngest, and he is also neither the heaviest and nor the lightest.
> 4. There are no pair of persons out of the six in which one is ranked higher than the other on all the parameters.
> 5. K is the only person whose sum of ranks on the three parameters is a square of a natural number.
> 6. R’s highest rank is on age and his lowest rank is on weight.
> 7. On the age parameter, A, whose rank is not the lowest on any of the three parameters, is the only person ranked between R and H.
> 
> 
> 

**QUESTIONS :**

> 
> 
> > 
> > **Q1:** What is the sum of weight-wise ranks of two boys for whom R is the only boy ranked between them on the parameter of height?
> > 
> > 
> > **Q2:** Who is the second tallest boy?
> > 
> > 
> > **Q3:** What is the sum of ranks of H on the three parameters?
> > 
> > 
> > **Q4:** How many boys are ranked lower than A on weight but are younger than him?
> > 
> > 
> > 
> 
> 
> 

Please tell the approach after solving

> 
> Source : [TIME](http://time.com/)
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>