White when dirty

I am white when I am dirty, and black when I am clean. What am I?




Similar Riddles

Vin Diesel is pulling a theft and has planned to run away with all the cash kept in the safe. But the only way to open the safe is the 13 character password. He has a set of five clues given to him by a trustworthy source.

Exactly two of the below statements are false.
The password is contained within this sentence.
The password is not in this hint.
The password is within only one of these statements.
At least one of the above statements is a lie.

Asked by Neha on 01 Jun 2023


f you were running a race, and you passed the person in 2nd place, what place would you be in now?

Asked by Neha on 14 May 2021

Can you count the number of squares in the figure below?

Count the number of squares

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Which five letter word can be added at the end of below word to form a
valid word?

> Pin
> Check
> Boiling
> View

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Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

Asked by Neha on 24 Mar 2022

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

Asked by Neha on 23 Jan 2021


What is the word or phrase below?
R | E | A | D

Asked by Neha on 28 Jul 2024

A car meter reading shows 72927 miles a palindromic number.
what is the minimum number of miles you would need to travel to see another palindromic number on the car meter reading?

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John decided to give his bike 3 coats of paint. Which coat would go on the first?

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There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

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Amazing Facts

Rubik’s Cube

The inventor of the Rubik’s Cube didn’t realize he’d built a puzzle until he scrambled it the first time and tried to restore it.