Black Changes its Colour

What is black when you buy it, red when you use it, and gray when you throw it away?




Similar Riddles

In order to complete the racing competition, the Mexico racetrack has to submit its top and the most famous three horses to win the competition. Due to an electrical storm, all the records are cleared and no one knows which horse holds the record. They all look identical and it becomes even more difficult to differentiate the horses. There are 25 horses in the Mexico racetrack. But there can be only five horses at a time on the track. What will the least number of races that can be conducted to find out the three fastest horses?

Horse Race in Mexico

Asked by Neha on 24 Mar 2021


Next Number in the Series,

5, 16, 49, 104, ?

Asked by Neha on 31 Dec 2025

Which Travels Faster? Solve below famous picture riddle:

Which Travels Faster

Asked by Neha on 11 Dec 2024


Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

Asked by Neha on 03 May 2022

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

Asked by Neha on 11 Feb 2021

There is a jar in which there are two types of candies.
20 blueberries and 16 strawberries. You perform the following steps:
1) You take out two candies.
2) If the two candies are of the same flavour, you add a blueberry one otherwise, you add the strawberry one.

You repeat these two steps till there is just one candy remaining in the jar. Which flavoured candy will be left?

Asked by Neha on 30 Aug 2023


What does this below rebus puzzle mean?

Personality Rebus Puzzle

Asked by Neha on 12 Aug 2024

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

Asked by Neha on 28 Apr 2022

A man is sitting in a bar when a rich man sits next to him. He turns to the rich man and says, “Did you know I know almost every song that has ever existed?”

The rich man laughs. The man then says, “I bet you all the money you have in your wallet that I can sing a genuine song with a lady’s name of your choice in it. The rich man laughs again and says, “OK, how about my daughter’s name, Jamie Armstrong-Miller?” Minutes later, the man collects his cash and the rich man goes home cashless. What song did the man sing?

Asked by Neha on 28 Jun 2025


A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

Asked by Neha on 26 Apr 2025

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Amazing Facts

Challenging

There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.