In the book The Hobbit where did Bilbo find the ring?

Answer 1

In the goblin tunnels in the Misty mountains, farther down than even the goblins themselves liked to go. In this deep tunnel lived Gollum, the previous owner of The Ring. Gollum had dropped the ring, and that is how Bilbo came to chance upon it.

Answer 2

Smeagol (Gollum) stole The Ring from his best friend, Deagol, who found it in the bottom of a river. Smeagol strangled Deagol, stole The Ring, and left him.

Answer 3

To Mount Doom in Mordor, the realm of Sauron.