Number Trivia

Can you find out which number multiplied by itself will give the output as 12345678987654321?




Similar Riddles

O_er_t_o_

Complete the missing letters of the given word.

Asked by Neha on 22 Feb 2022


A generous owner of a company decided to give a bonus of $45 to every man and $60 to every woman on his birthday. But only one-ninth of the men and one-twelfth of the women were present to take the bonus.

Can you calculate the amount of money the owner spent if there were 3552 employees?

Asked by Neha on 26 Nov 2024

Find the last number in the series below:

voN luJ yaM raM ---

Asked by Neha on 05 Jun 2023


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

Count The Blocks

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Can you identify the Oscar-winning movie from the rebus below?

Oscar-Winning Movie

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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


The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

Asked by Neha on 26 Mar 2024

Can you Find and name the hidden bird in the picture below ?

Hidden Bird in the Picture riddle

Asked by Neha on 17 Apr 2021

Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?

Magical Wheels

Asked by Neha on 22 Sep 2024


Keyboard words are not in alphabetical order, Why?

Asked by Neha on 26 Jul 2023

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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