[OK]

Privacy Policy  -  Terms & Conditions  -  See Details
We use cookies to personalise content and ads. We also share information about your use of our site with our advertising partners who may combine it with other information you've provided to them or they've collected from your use of their services.

BB Logo
Spacer
Line
Line
Mathematical Puzzles


Difficulty: MediumPuzzle 17

In the following sum the digits 0 to 9 have all been used, O = Odd, E = Even, zero is even and the top row's digits add to 9. Can you determine each digit?

Puzzle Image

Show Hint Show Answer Print Puzzle
[Ref: ZVZB] © Kevin Stone 


Difficulty: MediumPuzzle 18

The BrainBashers mechanical computer is a very sensitive device, in consists of four sequential cog wheels which are in constant mesh.

The largest cog has 63 teeth and the others have 42, 35 and 27 respectively.

By accident, Daniel started to rotate the largest cog.

How many revolutions must he rotate the largest cog make before the computer is back in its starting position with all of the cogs where they started?

Puzzle Cogs

Show Hint Show Answer Print Puzzle
[Ref: ZTLC] Copyrighted 


Difficulty: MediumPuzzle 19

Puzzle IconThe local library decided to hand out some of its old books to its 1400 borrowers.

To each of the female borrowers they gave 6 books and to each male borrower they gave 4 books.

If only half of the females in town and three quarters of the males in town accepted the books, how many books were given away?

Show Hint Show Answer Print Puzzle
[Ref: ZNXG] © Kevin Stone 


Difficulty: EasyPuzzle 20

Puzzle IconAt dawn on Monday a snail fell into a bucket that was 12 inches deep.

During the day it climbed up 3 inches, however, during the night it fell back 2 inches.

On what day did the snail finally manage to climb out of the bucket?

Show Hint Show Answer Print Puzzle
[Ref: ZQGM]  

Previous Puzzles Next Puzzles

 



 

Line


BrainBashers™ is a trademark. We use cookies to personalise content and ads. We also share information about your use of our site with our advertising partners who may combine it with other information you've provided to them or they've collected from your use of their services. For more information please view our privacy policy. By using the site you also agree to our terms and conditions.

Line
Line