Number Trivia

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




Similar Riddles

_ _ _ IE _ _
_ _ _ IE _
_ _ IE _ _
_ _ IE _
_ _ _ _ IE

Like you see, some letters have gone missing from these words that contain the IE pair at some or the other place. The letters that will be used to fill the blanks are given below. Use them and form meaningful words. Can you do that?

A, C, D, F, H, K, L, M, N, N, O, R, R, S, S, S, T, T, Y and Y.

Asked by Neha on 22 Jul 2021


Whats the next number in the below number sequence pattern.

Picture Pattern Riddle

Asked by Neha on 12 Nov 2025

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Asked by Neha on 28 Oct 2025


Solve the alphametic puzzle by replacing the alphabet with the number.

S T O R M +
S O L E S
=========
T O W E L
=========

Asked by Neha on 30 Jul 2024

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

Asked by Neha on 23 Feb 2024

The world's largest Thanksgiving turkey was on display at a fair. Everyone was admiring it when suddenly a woman ran up and shot the turkey and left. Everyone knew her yet nobody made any attempts to stop or report her. Why?

Asked by Neha on 24 Feb 2023


A donkey is behind another donkey
I'm behind that second donkey
But there is a whole nation behind me

It is a murder you can describe in a word.

Asked by Neha on 16 Nov 2025

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

Cube Game

Asked by Neha on 17 Jan 2021

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

Asked by Neha on 10 Oct 2021


There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Asked by Neha on 03 May 2021

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.