Favourite childish joke

Email your favorite childish joke (just one, more if you like) to your 5 partners.

You know the sort of thing, clean ( suitable for 4 year olds), silly and doesn't always make sense. The sort of joke that is so corny you still laugh even though it is really stupid. Nothing rascist, sexist, sexual or nasty.

eg. Why did 6 cry? Because 7 8 9. (Because 7 ate 9)

    How do you make a cream puff?
    Chase it round the garden.

     Why did the elephant paint his toe nails red?
     So he could hide in the cherry tree.

Be fair what might be funny in one country may not make any sense in another. Newbies and poor ratings welcome. If you are let down and don't receive your joke let me know and I can bore you with one I have.