Relacionar Columnas RiddlesVersión en línea set of EFL riddles por Tatiana Caro 1 What is as big as an elephant, but weighs nothing at all? 2 What two keys can’t open any doors? 3 What always sleeps with its shoes on? 4 Why do dragons sleep all day? 5 What fur do we get from a Tiger? 6 What has two heads, four eyes, six legs, and a tail? As fur away as possible! A donkey and a monkey The shadow of an elephant A cowboy riding his horse They like to hunt knights.