A person who tells a tale is commonly referred to as a storyteller. They captivate their audience by narrating stories that often entertain, educate, or inspire.
The person who tells you a tale is usually a narrator.
This would be a storyteller or a narrator.
a person who tells proudly about himself is a boaster or a braggart.
A prophet
Trustworthy !
An origin story or a creation myth is commonly used to describe a tale that explains the reason behind something's existence or origin.
The word "scale" tells your weight and rhymes with "tale."
a snitch
The fairy tale you are referring to is "Godfather Death" by the Brothers Grimm. In this tale, Death tells the doctor to stand at the sick person's feet so that he can claim their soul when the person is ill.
meterologists
a hipporcet
A person who tells tall stories is often referred to as a "tall tale teller" or simply a "storyteller." They may also be called a "fibber" or "embellisher" if their stories are exaggerated or not entirely truthful. In some contexts, the term "liar" might apply, though it suggests a more negative connotation regarding honesty.