None of the muses carried a paint easel. The arts inspired by the Muses were mostly related to history, science, and various forms of poetry (epic, love, and tragic). Though painting was certainly an important part of Ancient Greek art, particularly in the form of frescoes in Crete, it was not one of the art forms embodied in the Muses. 

The food of the gods was ambrosia. In many Greek myths mortals tried to steal ambrosia in order to become immortal - at the conclusion of his labors, the goddess Athena offered ambrosia to the hero Heracles as part of his journey to immortality. Ambrosia is also often referred to as the "nectar of the gods," and even now the term "ambrosia" is used to mean a food that is particularly good tasting or smelling. 

Heracles was NOT asked to defeat the monster Charybdis. Charybdis was a sea monster, commonly pictured as a giant whirlpool that Odysseus had to navigate on his way back from the Trojan War. 

Zeno founded the first school of Stoicism in Athens in the third century BCE. Zeno’s work was carried on by his successor, Cleanthes. Together, these two men are responsible for the emergence of Stoicism as one of the leading philosophical disciplines of the classical Greco-Roman world.

Epicureanism is a philosophy that was developed in ancient Greece by the philosopher Epicurus. It was founded in the late-fourth century BCE. Epicureanism emphasizes the pursuit of pleasure through the acquisition of knowledge and through moderate living. It is often misunderstood as a sort of hedonism, but Epicurus actually advocated for a much stricter style of living.

Stoicism is an ancient Greek philosophy that was established by Zeno, in Athens, in the third century BCE. Stoicism emphasizes personal conduct and the pursuit of knowledge and wisdom. It is often compared and contrasted with Epicureanism. Epicureanism teaches that the pursuit of pleasure is the most important aspect of one’s life. Although, what exactly constitutes “pleasure” is generally misunderstood.

Euclid lived in Alexandria (in Egypt) during the height of Hellenistic rule in Egypt. He is most famous for his contributions to geometry. His most influential work is called Elements and was an instrumental text in the teaching of geometry up to the nineteenth century.

Hippocrates is most famous for his contributions to medicine. He is often referred to as “the father of western medicine” for his efforts in establishing medicine as an independent and esteemed discipline. He may or may not have coined the Hippocratic Oath which bears his name.

Archimedes is one of the most famous and accomplished mathematicians and scientists of the classical era. He lived in Syracuse, on the island of Sicily, during the third century BCE. Among other accomplishments, Archimedes is remembered for determining a rough approximation of pi and developing a rudimentary system of calculus.

The Great Library of Alexandria was built in Ptolemaic Egypt (the name of the Hellenistic dynasty in Egypt) in the third century BCE. It was a center of learning for three centuries and attracted scholars from around the world.