Ni

Riddle Count: 1
Riddle: Many have heard me, but no one has seen me, and I will not speak back until spoken to. What am I?
Answer: An echo.
Many have heard me, but no one has seen me, and I will not Riddle Meme.
Many have heard me, but no one has seen me, and I will not Riddle Meme with riddle and answer link.