Quick Maths Riddle

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?




Similar Riddles

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

Next Dice Movement

Asked by Neha on 02 Dec 2023


The peacock is a bird that does not lay eggs. How do they get baby peacocks?

Asked by Neha on 09 Dec 2023

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.

Asked by Neha on 30 Sep 2021


Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

Asked by Neha on 29 Jan 2024

I’m tall when I’m young, and I’m short when I’m old. What am I?

Asked by Neha on 12 Feb 2022

I am white when I am dirty, and black when I am clean. What am I?

Asked by Neha on 31 Mar 2022


Why is Saturday stronger than Monday?

Asked by Neha on 13 Feb 2023

You can see it everyday, But cannot touch it at will. What is it?

Asked by Neha on 17 May 2021

What is full of holes but still holds water?

Full of holes riddle

Asked by Neha on 26 Apr 2021


Two fathers and two sons decided to go to a shop and buy some sweets upon reaching. Each of them bought 1 kg of sweet. All of them returned home after some time and found out that they had 3kg of sweets with them.

They did not eat the sweets in the way, nor threw or lose anything. Then, how can this be possible?

Asked by Neha on 01 Jun 2024

Hot Articles

Amazing Facts

No Solution

In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki