The thirsty crow.
Once a crow was very thirsty.It flew here and there in search of water.At last it saw a jug in a garden.There was little water in it.But its beak could not reach there.It saw some pebbles lying nearby.It dropped them into the jug one by one.The water rose up.The crow drank it and flew away.
Moral: Necessity is the mother of invention.
