Puzzle 1
This arrow is currently pointing from South to North.
Move one line and add one other to leave the arrow pointing from East to West.
Puzzle Copyright © Lloyd King
Puzzle 2
Here is a well known proverb with the consonants removed. What is the proverb?
A --i--- i- -i-e -a-e- -i-e.
Puzzle 3
This BrainBashers safe has a rather unusual control panel.
In order to open the safe, you have to press every single square once only, in the correct sequence, ending on the square marked E.
Each square indicates which square to press next, for example, 2U means move up 2 squares and 3R means move right 3 squares.
Can you determine which square you must start with?
| 4R | 4D | 1R | 1D | 2D | 4L | 1D |
| 1R | 4D | 5D | 2R | 2D | 1L | 4L |
| 2R | 1D | 1L | 2R | 2R | 2D | 2U |
| 2R | 2R | 3U | 3D | 1R | 3U | 6L |
| 3U | 3R | 1D | 2U | 4L | 2D | 3L |
| 3U | 1L | 1R | 1R | 1R | 1R | 2U |
| 6U | E | 2U | 2L | 4L | 1L | 2U |
Note: this puzzle is not interactive, and the safe buttons cannot be clicked.
Puzzle 4
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?