What Is Black When It Is Clean And White When It Is Dirty? 23/11/2021 by Mr. Riddles Riddle: What is black when it is clean and white when it is dirty?Show AnswerAnswer: Blackboard Solve More Riddles:What Becomes White When It Is Dirty?Within, I Clean All That Is Bad And Is OldWhat Stays On The Ground But Never Gets Dirty?When Its Dirty This Should Never Be Aired In PublicEveryone Has It but No One Can Lose ItWhat Goes In The Water Red, And Comes Out Black?With Three Eyes And A Black As NightWhat Turns From Red To Black As Soon As It Touches Water?White Bird, Featherless, Flying Out Of ParadiseThose Wooden Birds Are Now In Sight Whose Voices Roar