What are Pablo Picasso's 5 most famous paintings?

Claude Monet was a European impressionist painter. He painted all sorts of things. Mostly things that were simple. He painted them in different lights at different times of day. He painted over 20 paintings of the Rouen Cathedral, over 60 lilies, over 20 haystacks/grain-stacks, alot of his garden (not sure how many), and lots of others.