In a one-story pink house, there was a pink person, a pink cat, a pink fish, a pink computer, a pink chair, a pink table, a pink telephone, a pink shower-- everything was pink! What color were the stairs?

Why this works

This riddle plays on the expectation that every detail mentioned will relate to the color pink, tricking you into focusing on that theme. However, the key detail is that it's a "one-story" house, which means there are no stairs at all. The riddle cleverly misdirects you into thinking about the color of stairs that don’t exist, leading to a lighthearted surprise in its resolution!