How many feet have forty sheep a shepherd and his dog?

This is a bit of a trick question! Here's how to solve it:

* Sheep: Each sheep has 4 feet, so 40 sheep have 40 * 4 = 160 feet.

* Shepherd: A shepherd has 2 feet.

* Dog: A dog has 4 feet.

Total: 160 + 2 + 4 = 166 feet