In a row there are 6 boys between A and B and A is being the first boy in the row. There are 3 boys between B and C. If there are 12 boys after C, then how many maximum boys are there in the row?

X is more powerful than Y and Y is more powerful than Z. P is more powerful than Q but less than Y. Q is also more powerful than Z . Who is the least powerful?

Shailendra is shorter than Keshav but taller than Rakesh. Madhav is the tallest. Ashish is a little shorter than Keshav and little taller than Shailendra. If they stand in the order of increasing heights, who will be the second ? 

A class of boys stands in a single line. One boy is nine tenth in order from both the ends. How many boys are there in the class? 

Ravi is 7 ranks ahead of Summit in a class of 39. If Sumit's rank is seventeenth from the last, what is Ravi's rank from the start? 

The total strength of the class is 90 and the number of girls is twice that of boys. Suraj is ranked 14th from the top. Suppose there are 10 girls ahead of Suraj. Find the number of boys after Suraj in the ranking order.

Raja walks slower than Raghu and Raghu walks faster than Guru and Krishna walks faster than Guru, then who walks the faster?