Necessity is the mother of invention
The sun was very bright and it was extremely hot. A crow felt very thirsty. He flew here and there but could not find any water to quench his thirst. Luckily, he found a pitcher. There came happiness on his face. He perched on the mouth of the pitcher to dip his beak and drink water. But the water was very shallow. His thirst increased but he was helpless. He did not know what to do. It was a question of survival for him. He saw some pebbles lying nearby. These pebbles gave him a brilliant idea. One by one he dropped the pebbles with his beak into the pitcher. The level of water slowly rose up to the mouth of the pitcher. He comfortably drank the water to his satisfaction and flew away singing.
Moral: Necessity is the mother of invention.
Where there is a will, there is a way.