Have You Herd Of Cows Puzzle - Solution

The Puzzle:

Have You Herd Of Cows
Old Farmer Palmer has a herd of cows, but he always seems to forget how many animals there are. When he counts them he just makes sure he can see 6 cows from each window of his house:

One night, however, Russell the Rustler took away half of the herd. Farmer Palmer didn't notice for ages because the next morning he could still see 6 cows from each window. How was it done?

Our Solution:

Many solutions and variations are possible once you get the idea! Here's one simple version:

Puzzle Author: Stephen Froggatt

See this puzzle without solution
Discuss this puzzle at the Math is Fun Forum
Logic PuzzlesPuzzles Index