Who was the Greek hero who had to empty the sea with a spoon?

The Greek hero who had to empty the sea with a spoon is Heracles, also known as Hercules. This task was one of the Twelve Labors assigned to him as punishment for killing his family in a fit of madness. The task was essentially impossible, symbolizing the futility of trying to achieve the unattainable. Instead of completing it literally, he managed to find a clever solution by diverting two rivers to wash the Augean stables clean.