Paradox Probability

This is a famous paradox which has caused a great deal of argument and disbelief from many who cannot accept the correct answer. Four balls are placed in a hat. One is white, one is blue and the other two are red. The bag is shaken and someone draws two balls from the hat. He looks at the two balls and announces that at least one of them is red. What are the chances that the other ball he has drawn out is also red?




Similar Riddles

Why blonde cannot dial 911?

Asked by Neha on 07 Jun 2026


What four weights can be used to balance from 1 to 30 pounds?

Asked by Neha on 25 Apr 2022

What's the best place to go shopping in the ocean?

Asked by Neha on 31 Oct 2024


What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

Asked by Neha on 08 Feb 2024

Rihana, Peeta, and Logan order a pizza for $10. Out of the three, Rihana and Peeta were quite hungry and ate 6 slices a piece, while Logan had just 2 slices.

Now, they want to split the cost among them fairly but due to the lack of change, they decide to round off the cost to the nearest possible dollar.

Can you find out the fairway which should be used to split the money?

What if the pizza was worth $11?

Asked by Neha on 16 Jun 2026

In a town, there are over 100 flats.
Flat-1 is named first flat.
Flat-2 is named second flat.
Flat-3 is named third flat.

A visitors 'Victor' decides to walk through all the flats, he finds all the flats except flat-62.
Victor later founds that the local of the town have given it another name.

What is the name of the Flat?

Asked by Neha on 05 May 2021


Can you count the number of triangles in the picture below?

Count the Triangle

Asked by Neha on 11 Apr 2024

What goes up but never comes down?

Asked by Neha on 26 Oct 2021

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

Asked by Neha on 08 Dec 2024


What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

Asked by Neha on 27 Jul 2023

Hot Articles

Amazing Facts

Gambling

In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.