Neeraj starts walking towards South. After walking 15 m, he turns towards North. After walking 20 m, the turns towards East and walks 10 m. He then turns towards South and walks 5 m. How far is he from his original position and in which direction?

In a row of forty children, P is thirteenth from the left end and Q is ninth from the right end. How many children are there between P and R, if R is fourth to the left of Q?