Who was Dr Sadao? Where was his house?

A man coming out of the backdoor of his house which is facing East, walked for one kilometre, turned to his right and walked for another kilometre. Then he turned to his right and walked a kilometre again. Where was he from his house at the end?

Where was Abdul Kalam’s house?

Sahil takes 1 h to travel from his house to a market. If his speed is 1.5 m/s, then how far is the market from his house?