If we assume one of the people own a fish, (from left to right)
House #1-Norwegian, yellow house, water, cats, Dunhill
House #2-Dane, blue, tea, horses, Blend
House #3-Brit, red, milk, birds, Pallmall
House #4-German, green, coffee, FISH, Prince
House #5-Swede, white, beer, dogs, Bluemaster...