BrainBashers™ is a collection of brain teasers & Japanese-type puzzles, optical illusions, and other fun stuff.
BrainBashers has items such as: Daily BB Words, logic puzzles, Sudoku, stereograms, magic games, memory games, mazes, typing tests, and so much more. Including a pointless box and a blank page!
There is a wide range of things to do every single day – take a look at the site map to see a list of everything, or perhaps choose a random page instead.
Daily Puzzle – Nov 18
Alex and Billie have to empty all of the bookshelves in the library, and move the books into storage.
Alex, on her own, can empty the bookshelves in 18 hours.
Billie, on her own, can also empty the bookshelves in 18 hours.
Unfortunately, Drew likes to move the books from storage back onto the bookshelves, and she can refill the bookshelves in 36 hours.
How long will it take the three of them, working at the same time, to empty the bookshelves?
Puzzle Copyright © Kevin Stone
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All daily items change at midnight GMT – set your local time zone.
New And Updated Stuff
These items were new / updated in the last 14 days. I also have a more complete list of new / updated items.
New illusion in the last 7 days. Is the gray ring a uniform colour?
Updated in the last 14 days. New / updated brain teasers twice a month.
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).