Racecar.
更多英語(yǔ)謎語(yǔ)
No matter how little or how much you use me, you change me every month. What am I?
Iron roof, glass walls, burns and burns and never falls. What am I?
What always comes into a house through the keyhole?
Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not. What is it?