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

At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?

Asked by Neha on 13 May 2023


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

An inspection by the superintendent of St. Joseph School was scheduled on the next day. The class teacher Jenifer knew that he would be asking questions from her class and she would have to choose a pupil to answer. To offer a perfect impression over him, the teacher explained certain instructions to the students to maximise the chances of getting correct answer every time.

What did she say to the students?

Asked by Neha on 14 Jul 2021


Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

Asked by Neha on 24 Jan 2023

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

Asked by Neha on 06 Apr 2024

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

Asked by Neha on 11 Oct 2024


In a picnic session, a footballer was practicing. During his play, he busted lips and ears and broke ribs and thighs. However, he was still able to play a professional match on the very next day.



How can this be possible?

Asked by Neha on 20 Jan 2021

Can you find the missing piece of the Porsche?

Find the missing part

Asked by Neha on 23 Jun 2023

Count the number of squares in the picture below.

Count The Magic Squares

Asked by Neha on 14 Dec 2024


I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Asked by Neha on 05 Feb 2021

Hot Articles

Amazing Facts

Challenging

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