What is black and white with red dots?
A zebra with chicken pox.
What is black and white, black and white, black and white and green?
Three zebras fighting over a pickle.
What is black and white and red all over?
A sunburnt zebra.
What is the difference between a zebra and a horse?
A zebra has its pyjamas on.
When is a zebra invisible?
When its on a zebra-crossing.
When is a zebra-crossing invisible?
When its not been painted yet.