On the banks of a river sat three indian women, sitting on three different animal skins.

On a deer skin was a woman with her son, and the son weighed 140 pounds.

On a buffalo skin was another woman, and her son who weighed 160 pounds.

And on a hippopotamus skin sat an immense indian woman, who refused to tell anyone her weight.

The locals asked the local wise man Dances With Maths if he knew how much she weighed and he said 300 pounds.

Amazingly when the villagers checked he was right, when they asked him how he knew he replied:

"The squaw on the hippopotamus was equal to the sons of the squaws on the other two hides."