skip to main content


Random Puzzles 


?

Puzzle 1 


Can you fill the thermometers with mercury, such that the numbers outside the grid indicate how many cells in each row and column contain mercury.

Mercury always starts filling from the bottom of a thermometer and not every thermometer has to contain mercury.

Puzzle Copyright © Johan de Ruiter

workings hint answer print

??

Puzzle 2 


As my autumnal birthday approaches I like to collect leaves! A little bizarre perhaps, but I enjoy it!

Starting on the first day of the month I collect 1 leaf, on the second day I collect 2 leaves, the third day I collect 3 leaves, and so on.

On my birthday, I will have collected 276 leaves altogether. Which day of the month is my birthday?

Bonus Question: how many days would it take for me to collect 56,616 leaves?

Puzzle Copyright © Kevin Stone

workings hint answer print

?

Puzzle 3 


I was quite bored yesterday, so I visited my local animal sanctuary.

To pass the time, I counted 612 legs.

This came from an equal number of beetles, spiders, and mice.

Can you work out the total number of animals I counted?

Puzzle Copyright © Kevin Stone

workings hint answer print

??

Puzzle 4 


What number comes next in this sequence:
986888
724864
143224
==??==

Puzzle Copyright © Kevin Stone

workings hint answer print

Note: BrainBashers has a Dark Mode option. For BrainBashers, I'd recommend not using your browser's built-in dark mode, or any dark mode extensions (sometimes you can add an exception for a specific website).