Puzzle 549
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?
| 6D | 2D | 3R | 1R | 2D | 1D | 6L |
| 2R | 1U | 2R | 2L | 2D | 2D | 2D |
| 1U | 1D | 2U | 1U | 1L | 3L | 1U |
| 2D | 1L | 2D | 3U | 2D | 2L | 4L |
| 2U | 1R | 2R | 3R | E | 2U | 5L |
| 3R | 1D | 4R | 1U | 3L | 1U | 1D |
| 2U | 1R | 1R | 1R | 1R | 1U | 6U |
Note: this puzzle is not interactive, and the safe buttons cannot be clicked.
Puzzle 550
During a recent trip to Scotland, I filled my car's 10 gallon fuel tank to the very top.
I travelled at 60 mph up the motorway, and I knew that I averaged exactly 40 miles per gallon.
However, the moment I started, my fuel tank developed a leak, and four hours later I came to a complete stop as I'd run out of fuel!
How much fuel did I lose through the leak?
Puzzle 551
Find an word which is singular, add an 's' and it becomes plural, and add another 's' it becomes singular again?
Puzzle 552
Place letters into the grid such that every row, column, and 2 x 2 block has letters (in any order) that form a common word. Each letter is only used once, and no letter is repeated in the rows / cols / blocks.
Letters allowed: C O L U M B U S
| D | K | ||
| P | |||
| E | T | ||
| E | L | A |
Note: this puzzle is not interactive, and the squares cannot be clicked.
Puzzle Copyright © Alan Stillson and Frank Longo