This simple classic riddle asks what has a spine but no bones. The answer is something you might find on a shelf.
The Riddle
What has a spine but no bones?
Before scrolling to the answer, think about everyday objects that borrow the names of parts of the human body.
The Answer
A book!
The spine of a book is the edge where its pages are bound together. It helps hold the book’s pages in place and often displays the title and author’s name when the book stands on a shelf.
Why the Riddle Works
We usually associate spines with people and animals, but the word also describes an important part of a book. A book has no skeleton or bones, making it the perfect answer.
Did you guess a book immediately, or did something else come to mind?


