The werewolf myth includes many cultures however the most ancient and credible reports come from Greece.
One comet myth is the belief that comets were seen as omens of great events, such as wars or natural disasters, in various ancient cultures.
There are gods and myths which the ancient Egyptians borrowed from other cultures and cultures which took myth and gods and goddesses from Egyptians. Many cultures in that area lived and traded and communicated with each other for thousands upon thousands of years, so "stolen" myths and gods and goddesses on both sides are to be expected.
Since our ancestors tended to congregate near clean water sources such as rivers, it's safe to say most of them. And if you are referring specifically to Ancient European, Asian and Afircan cultures, all of them. The story of Noah predates the story of Abraham, and is presumed Babylonian in origin. The Greek, and by proxy the Romans also had a flood myth, as did the Egyptians. AS I recall, the Chinese also have one. The ancient Roman, Hebrew, Karen of SE Asia, Lisu tribe of China, Ojibway cultures, certain tribes of Africa and many others
Unlike many other ancient cultures the Greek gods were human shaped and human nature at heart, they loved, they pitied, they cried - they were not monsters that only hated and were vengeful - there is a certain beauty in the Greek myths whose gods and goddesses were portrayed later as being beyond the need of human sacrifice which marked so many other cultures. There are hints to the dark past of Greek myth, but in the myths they seem remote even in the time when Greek myth was old religion.
In Ancient Greek myth, the river that souls must cross to reach the Underworld was called Styx. In Japanese Buddhism, there is a similar river called Sanzu. In ancient Mesopotamia, the river was called Hubur. Many other cultures have comparable rivers.
As a ancient deity from myth only Apollo can say.
The mermaid myth was created by the ancient Celts and Greeks.
An ancient myth is a very old story set in ancient times, with no truth in it at all, that is why some creaures are called mythical creaures, they don't exist.
Yes, It is an ancient greek myth
Aphrodite was a goddess of the ancient Greek people before she was a "myth".
Yes.