A river.....
More concise question you can see this link What always murmurs but never talks, Always runs but never walks,Has a bed but never sleeps,Has a mouth but never speaks
There is something that is nothing but it has a name. It joins our walks; it joins our talks; it plays in every game. What is it?
Four brothers were born together. One runs but never walks, one eats but is never full. One drinks and is ever thirsty, and one sings a song that is never good.
Who are they?