Cloth Roll to be Cut

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

math

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Special Interesting Number

A number with an interesting property:

When I divide it by 2, the remainder is 1.
When I divide it by 3, the remainder is 2.
When I divide it by 4, the remainder is 3.
When I divide it by 5, the remainder is 4.
When I divide it by 6, the remainder is 5.
When I divide it by 7, the remainder is 6.
When I divide it by 8, the remainder is 7.
When I divide it by 9, the remainder is 8.
When I divide it by 10, the remainder is 9.

It's not a small number, but it's not really big, either.
When I looked for a smaller number with this property I couldn't find one.

Can you find it?

logic RIDDLE

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Asked by Neha on 21 Nov 2024

Newspaper Pages

A newspaper is supposed to have 60 pages, but pages 24 and 41 are missing.
Which other pages won't be there?

logic RIDDLE

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Asked by Neha on 12 Apr 2024

Unususal Paragraph

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

kids RIDDLE

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Asked by Neha on 02 May 2022

Date Puzzle

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

logic RIDDLE

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Asked by Neha on 14 Aug 2024

Dance in the Concert

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

logic RIDDLE

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Asked by Neha on 11 Aug 2024

Two out of one

I make two people out of one. What am I?

kids RIDDLE

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Asked by Neha on 29 Mar 2022

Ants on Triangle

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

logic RIDDLE

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Asked by Neha on 05 Sep 2021