Puzzle 153
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 Copyright © Kevin Stone
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Puzzle 154
Take a word from the first column, and a word from the second column.
You will now have 6 lots of eight letters, and each of these eight letters is an anagram of something that lives in water.
dish leek
tray shoe
raft sign
cram golf
ears fern
loud hiss
Puzzle Copyright © Kevin Stone
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Puzzle 155
Can you find a number …
… whose double exceeds its quarter by 7.
Puzzle Copyright © Kevin Stone
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Puzzle 156
At the equator the radius of the earth is 6,378 km, so its circumference is almost exactly 40,000 km.
Imagine we had a long rope which went around the equator, this would of course be 40,000 km long.
If we now placed 1 metre sticks vertically all the way around and lay the rope on top of these sticks (so the rope would be 1m higher all the way around) how much extra rope would we require?
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