Finally, the definitive answer to the age old question: Which came first, the chicken, or the egg?

If this is a question that you've pondered many a time, then rejoice! Not only can you discover the answer, but you can prove it again and again.

So, which came first? Clear the track, wind up the two opponents and release them. Note the winning participant carefully, it's the answer to one of life's greatest conundrums.

In the box

• 1 wind up racing chicken
• 1 wind up racing egg (yes the egg has legs and it's wearing trainers)