When it comes in,
From sea to shore,
Twenty paces you'll see,
No less, no more.
What instrument can make any sound and be heard but not touched or seen?See answer
It is a sound of empty, speak and it'll talk back plenty. But all the more you yack, you'll get the same words back.See answer
Select a pack of riddles and try to solve it in an interesting way.
This riddle appears in the following downloadable PDF files: