Label the Box

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?




Similar Riddles

As shown in the picture below, we can see a boy hanging on the tree branch to save his life. There are various ways in which he can die like1. A snake hanging toward the right waiting to bite the boy.2. A roaring Lion near the tree.3. Two crocodiles are ready to attack if the boy reaches near water. The tree is chopped to some extent, so can fall as if he moves a lot. Can you give this boy an escape plan?

The Escape Plan

Asked by Neha on 06 Jul 2023


I have branches, but no fruit, trunk or leaves. What am I?

Asked by Neha on 18 May 2022

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

Asked by Neha on 30 May 2025


Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

Asked by Neha on 31 Jan 2021

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

Asked by Neha on 17 Mar 2026

Solve the mathematical equation in the picture below.

Math Equation Picture

Asked by Neha on 16 May 2023


When we see 2 but call 10?

Asked by Neha on 14 Oct 2023

People put me on the table and cut me but do not eat me. What am I?

Asked by Neha on 09 Jul 2024

To tease, King Akbar told his most clever advisor Birbal to give his daughter one thing that she can eat when hungry, drink if she feels thirsty and can burn if she feels cold. King Akbar was shocked when Birbal gave Akbar's daughter one such thing that satisfies all of the above.

What did Birbal give to Akbar's daughter?

Asked by Neha on 28 Jan 2023


How many times can you subtract the number 5 from 25?

Asked by Neha on 05 Oct 2021

Hot Articles

Amazing Facts

Crossword puzzles

In the 1920s, people feared that crossword puzzles would contribute to illiteracy.