The main sacred text is Iliad and The Odyssey which were a series of poems written by Homer
Judaism is not a sacred text, it is a religion and that religion happens to have a sacred text. To learn more about Judaism's Sacred Text, read the Related Question.
Often indigenous religion such as the Aboriginals and Torres Strait Islanders. They had no sacred text as their religious knowledge was passed down from generation to generation orally. As they have been around for over 40,000 years it classifies them as ancient.
The Holy Bible is the sacred text for Christians.
Confucianism.
Judaism
Upanishads is one of the many sacred texts of Hinduism.
Since atheism is not a religion or a belief system but an absence of those things, it has no sacred text, no tenets, no dogma. In addition the term "sacred" implies "handed down by a god". In atheism there is no god, therefor no handing down, therefore no text
No. The Talmud is an explanatory legal treatise in Judaism. It is not a "sacred text" nor is it affiliated with Christianity in any way. (The Jewish sacred text is the Tanakh or Jewish Bible.)
The Vedas
Yes, Buddhism is a recognized world religion with its own sacred text.
The religion here is Islam. The holy book is the Qur'an.
The Mahabharata is a sacred Indian text, followed by practitioners of Hinduism.