## How many addition signs should be put between digits of 987654321

How many addition signs should be put between digits of 987654321 to equal 99? Where should they be placed? Time to solve 10 minutes.

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Submitted by Atanu Chaudhuri on Thu, 14/01/2021 - 23:47

Submitted by Atanu Chaudhuri on Tue, 22/12/2020 - 23:37

9 squares puzzle: Find area of rectangle with 9 gradually smaller squares inside it and the side length of smallest square 3 units. Time 30 minutes.

Submitted by Atanu Chaudhuri on Thu, 17/12/2020 - 23:30

Surely you can solve the 3 digit number puzzle in 20 mins if you approach the puzzle with systematic problem solving techniques.

Submitted by Atanu Chaudhuri on Wed, 16/12/2020 - 23:52

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Submitted by Atanu Chaudhuri on Sun, 26/04/2020 - 21:39

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Cheryl's Birthday Problem: Cheryl gives Albert and Bernard 10 possible dates for her birthday and also a few clues. And you have to find Cheryl's birthday.

Submitted by Atanu Chaudhuri on Sat, 12/08/2017 - 18:19

Bank cashier mistake puzzle: Double the cheque amount less 20 paise received as Cashier interchanged paise with rupees. What were the cheque figures?

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