contable and uncontable nouns Online version Read the following riddle, concentrate and enjoy it. With my sheets well joined, that the wind does not take me, I do not give shade or shelter, But I teach and entertain. by lenis del carmen herazo torres 1 I have leaves without being a tree, I speak to you without a voice, If you open me, I'm not complaining. Hints 1 it's in the sea 2