Directions: In each of these questions, three words are related in some way. The relationship among the words in the question can best be represented by one of the five diagrams (a), (b), (c), (d) and (e) given below. Mark your answer accordingly.

Iron, Lead, Nitrogen  

Shyam goes to his friend's house which is directly 10 km away from his house. On his way back, he turns right and walks 2 km and turns right. He walks 10 km before turning right again. How far is Shyam still from his house?

Which of the following numbers will replace the question mark (?) in the given series?

189, 532, 316, ?, 377

Find the number of square?

A man takes 6 km distance to go around the rectangular area. If the area of the rectangle is 2 sq. km. find the difference between length and breadth.

Find the minimum number of straight lines required to make the given figure.

There are five friends Shailendra, Keshav, Madhav, Ashish and Rakesh. 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. Who is the shortest? 

25 : 625 : : 35 : ?