Squigly Squigly's Brain Teasers

Question:

What has a spine but no bones?

Answer:

A book.

Try another Brain Teaser:

A farmer has a sack of grain, a chicken and a fox. He has to get them across the river and he can't go around or fly but he does have a boat. He can only take one thing at a time across the river. How can he get them across?