In the following question, a word is represented by only one set of numbers as given in any one of the alternatives. The sets of number given in the alternatives are represented by two classes of alphabets as in the 2 matrices given below. The columns and rows of Matrix-I are numbered from 0 to 4 and that of Matrix-II from 5 to 9. A letter from these matrices can be represented first by its row and next by column number. For example, 'W' can be represented by 13, 20 etc, 'H' can be represented by 66, 78 etc. Identify the set of the word PENS.

Ravi goes to his school from his home. He walks 6 km and then turns to the right and walks 7 km. Again, he turns to the right and reaches his school after walking some distance. Now his face is in the West. What was the direction in which he started to walk?

If 'rain' is 'water', 'water' is ' road ', 'road' is 'cloud' , 'cloud' is 'sky', 'sky' is 'sea' sea is 'path', where do aero planes fly ? 

Six persons (U, V, W, X, Y, Z) sitting in a circle (not necessarily in same order). U and X are sitting opposite to each other. Z is between U and Y. W is opposite to Z. Who is sitting between V and X?

My face is in South Direction. I turns Right and walks 20 m. Then turns Right and walks 10 m. Then terns left and walks 10 m. Then turns right and walks 20m. Again turns right and walks 60 m. In which direction I am from (starting) Initial point? 

Babu is Rahim's neighbour and his house is 200 metres away in the north - west direction. Joseph is Rahim's neighbour and his house is located 200 metres away in the south - west direction. Gopal is Joseph's neighbour and he stay 200 metres away in the south - east direction. Roy is Gopal's neighbour and his house is located 200 metres away in the north east direction. Then where is the position of Roy's house in relation to Babu's ? 

Select the option that is related to the third number in the same way as the second number is related to first number.
19 :400 :: 24 :___

In each of the following questions, select the related letter/word/ figure/ number from the given alternatives.
Ramanujan: Mathematician:: Sushruta:?