¿Qué compras para comer pero no te la comes? Una cuchara. (What do you buy so that you can eat, but don’t actually eat it? A spoon?)
My mom would hear riddles like these growing up from her parents and aunts and uncles.
I myself would also be told these kind of similar riddles in Spanish and my sisters would already know all of them and I’d be struggling to figure them out much to the enjoyment of my family. These kind of riddles are a very recurring element within the types of things circulated around my family.