What is what black white and red all over?

The phrase "black, white, and red all over" is a wordplay on the homophonic phrase "read all over." The traditional answer to the riddle is a newspaper, which is printed in black and white and often has the color red as a prominent feature on the front page. However, the answer can also be interpreted in other ways, such as a zebra in a blender (black and white mixed together and made into a "red" smoothie) or a sunburned penguin (black and white feathers turn red from sunburn).