From Wikipedia: A horse has an infinite number of legs A horse has forelegs. And it has two back legs. Four plus two is six, thus it has six legs

From Wikipedia: A horse has an infinite number of legs A horse has forelegs. And it has two back legs. Four plus two is six, thus it has six legs Six is an odd number of legs for a horse to have But six is also an even number of legs. The only number which is both even and odd is infinity Therefore, a horse has an infinite number of legs Now we know that the infinite legs are infinitely long. (Unrelated, but along the same line of silliness from there: No horse has five legs. Any horse has four legs more than no horse does. Therefore, a horse has nine legs.)