Color Trick

Author: Riddle King
8 years ago

Riddle: What is black when you buy it, red when you use it, and gray when you throw it away?
Answer: Charcoal.
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Source: https://www.riddles.com/index.php/3929
COMMENT
What is black when you buy it, red when you use it, and gray when you throw it away?
Color Trick by Riddle King Riddle