It’s a foreign fish, at least
“There are five houses in a row in different colors. In each house lives a person with a different nationality. The five owners drink a different drink, smoke a different brand of cigar and keep a different pet, one of which is a Walleye Pike.”
There are fifteen hints that help you narrow down to the one possibility. I’m no logic genius and this took me about forty-five minutes, so I tend to question the idea that only one in fifty people can solve this puzzle. So, give it a try!