Google shows the source of that information. I would not like if the "Intelligent Agent" didn't show the source :)

Try "Population of India" on Google http://www.google.com/search?num=100&hl=en&lr=&q=population+of+india , does not give much. But try it on Ask and you get http://uk.ask.com/web?q=population+of+india this.

Try:

- What is the age of Billy Joel
- What is the meaning of cot

Read the post again and try "What is the population of India" :
http://www.google.com/search?num=100&hl=en&lr=&q=What+is+the+population+of+india&btnG=Search