Why is a small hole provided at the back of a power plug?
on October 23rd, 2005 | One answer

In the game of pool, what are rails?
on March 11th, 2005 | One answer

If a strange dog is running toward you, should you run or stand your ground?
on March 7th, 2005 | 8 answers | 2 people like this

Can ultrasonic waves (less than 20 Hz) help repel pests, and are the waves harmful to people?
on March 7th, 2005 | 3 answers

How many universities are there in India?
on January 30th, 2005 | 5 answers | 4 people like this