A man called Drew White sells houses.
He starts to tell this newly wed couple about a great yellow house. It's an old, kind of prairie one-story, with great views of the country side. It has well water and everything.
The only problem with this house is that everything is yellow. The walls are yellow, the ceiling and floor are yellow. The chairs are yellow, even the doors are yellow, and the sink, and the toilet, and believe it or not, the windows, are tinted yellow. What color are the stairs?