Rounding Off Numbers

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.




Similar Riddles

What is the relationship between these matchstick pictures below?

Matchsticks Relationship Riddle

Asked by Neha on 09 Jun 2026


Make a sentence consisting of three words that have the whole alphabet.

Asked by Neha on 11 Dec 2025

Why despite killing dozens of people Charley and Wilma were not punished?

Asked by Neha on 21 May 2026


Which alphabet is a part of our body?

Asked by Neha on 03 Nov 2023

What has many teeth, but cannot bite?

Asked by Neha on 15 Jul 2025

Why is the Hole below a Lock?

Hole in Lock

Asked by Neha on 23 Jul 2023


My sock drawer has 26 blue socks, 13 pink socks, 33 green socks, and 12 red socks, how many socks would I have to pull out in the dark to be sure I had a matching pair?

Asked by Neha on 13 May 2026

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

Asked by Neha on 27 Sep 2023

1. Where does Easter come from before Valentine's Day?

2. Do you know what is in the middle of Valentine's?

3. What did the lady bee say to the man bee on the occasion of Valentine's Day

Asked by Neha on 24 Oct 2024


How far can you walk into the woods?

Asked by Neha on 21 Jul 2025

Hot Articles

Amazing Facts

Word ladder puzzle

The word ladder puzzle was invented by Lewis Carroll, author of Alice’s Adventures in Wonderland.