I speak without a mouth and hear without ears. I have no body, but I come alive with the wind. What am I?Answer: An echo.Forward I am heavy, but backward I am not. What am I?Answer: The word "ton."The more you take, the more you leave behind. What am I?Answer: Footsteps.The person who makes it, sells it. The person who buys it never uses it. The person who uses it never knows they're using it. What is it?Answer: A coffin.I am not alive, but I grow; I don't have lungs, but I need air. What am I?Answer: Fire.Which room can you never enter?Answer: A mushroom.I'm a box that holds keys without locks, yet they can unlock your soul. What am I?Answer: A piano.