Number Trivia

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




Similar Riddles

There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

Asked by Neha on 02 Feb 2021


A man is lying dead in a field where no one is around. His head is split open and his legs are disfigured. Near to him, there is an unopened package. No living organism can be found anywhere at the crime scene.

How did he die?

Asked by Neha on 04 Apr 2023

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Asked by Neha on 01 Mar 2022


What Does this text mean:

important=important

Asked by Neha on 20 Dec 2025

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

Asked by Neha on 25 Jan 2021

Can you find the mistake in the below statement?

Can you find the mistake, Riddle

Asked by Neha on 10 Mar 2026


I am beautiful, up in the sky. I am magical, yet I cannot fly. To people I bring luck, and to some people, riches. The boy at my end does whatever he wishes. What am I?

Asked by Neha on 27 May 2025

Before Mount Everest was discovered, what was the highest mountain in the world?

Asked by Neha on 04 Aug 2021

Why did the Girl throw the butter out of the window?

Asked by Neha on 19 Aug 2024


Can you count the number of triangles in the given figure?

Count the Triangles

Asked by Neha on 03 Jan 2021

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There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.