Black When Clean and White When Dirty

What is black when it’s clean and white when it’s dirty?

A chalkboard (or blackboard). It’s solid black when clean, and as you write on it with white chalk it becomes dirty.

Posted in Riddles


26 Comments on "Black When Clean and White When Dirty"

Victoria says
May 17, 2018 @ 20:47

People stop making fun of other people for saying chalkboard i say chalkboard. Anyone who says chalkboard don’t change and you are perfect the way you are

Sean says
July 2, 2018 @ 03:47

This is bad and you guys are answering after seeing the answer we all know it. By the way chalkboards are blackboards. Blackboards are chalkboards and both are GREEN not black you stupid riddler. And a little something called dust makes so that just because it’s dirty it doesn’t HAVE to be white god you make these riddles stupid and such a stretch they’re just wrong. I came up with this in seconds. I cry but I dont shed tears I jump but don’t fall I eat but I don’t chew what am I.

A bird

Wu Ming No name says
July 12, 2018 @ 20:50

Sean, you’re getting mad at a riddle that makes sense. There are black blackboards, not just green. LOOK IT UP.

Nellz says
October 28, 2019 @ 04:23


Sharon Delafuente says
March 20, 2020 @ 22:55

Really Sean? You just made more of us laugh more, there are seriously actual blackboards! I’m really surprised you either didn’t remember or just never really paid attention to certain things. Kinda odd and funny. Thsnks for the himor at times like this?

Sharon Delafuente says
March 20, 2020 @ 22:57

Meant thanks for the humor (mispell) see even I make mistakes

Ethan says
December 16, 2020 @ 10:27

It get white when you draw
Black when clean

Rose says
March 26, 2021 @ 09:07

A chalkboard (or blackboard).

Emma says
May 14, 2021 @ 16:12

Its a blackboard

Jennifer says
December 16, 2022 @ 15:22

For those of you that are comparing “blackboards” to “chalkboards”, they are indeed the same, but the words used imply different things. Both are made with slate, but the type and color of the slate is different which is where the different terminology comes in play.

Blackboard refers strictly to a chalkboard with a black appearance because of using a darker or black slate in construction.

Chalkboard refers to ANY chalkboard regardless of color (green, tan, red, etc), although when the color is close to black or actually black it is more appropriate to use “blackboard” instead.

July 14, 2024 @ 12:34

A chalkboard I did not check for any answers.

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