Fight Fire

A man was on a holiday last year on the island of Syracuse. Syracuse is a really peculiar shape for an island, it's rectangular, 20 miles long and only 15 feet wide, and totally covered in trees! It has two tinyvillages on it 'Start' and 'End', unfortunately, a fire has begun at Start and is travelling toward End at around 1 mile per hour. There is also a wind which is blowing towards End at around 2 miles perhour. Now, Billy, who is at End, has no way of getting off the island, he cannot pass through the fire, he cannot put the fire out and there is no one to help him. How can he save himself?

Answer :

Just light a new fire at about 1 mile from 'end'. This fire will destroy all the trees towards 'end'. because of wind. Now the old fire which is coming towards 'end' will stop at 1 mile from 'end'.