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Puzzle 661
The local River Trent is 4,100 inches wide, which happens to be a fantastic number.
There is a magnificent, perfectly straight, bridge that spans the river at right angles.
During a recent survey of the area, it was found that one-seventh of the overall length of the bridge was on one bank of the river, and one-eighth of the bridge was on the other bank.
What is the total length of the bridge that spans the River Trent?
Puzzle 662
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?
| 6R | 4R | 3D | 2D | 2L | 2L | 2D |
| 2D | 1U | 4R | 4D | 3L | 2L | 2L |
| 1U | 1R | 3R | 3L | 2U | E | 2D |
| 1R | 1U | 3R | 1D | 2D | 1L | 3L |
| 4U | 1L | 3U | 2D | 2U | 3U | 2D |
| 1D | 1U | 1D | 3L | 2R | 3L | 2U |
| 1R | 1U | 2U | 2R | 2U | 1U | 2L |
Note: this puzzle is not interactive, and the safe buttons cannot be clicked.
Puzzle 663
Three teachers were discussing how long they had each been teaching.
Alex and Billie had been teaching for a combined total of 36 years.
Charlie and Billie had been teaching for a combined total of 22 years.
Charlie and Alex had been teaching for a combined total of 28 years.
How long had each been teaching?
Puzzle 664
Place the digits 1 to 8, into the grid. The numbers you can see are the totals for the surrounding numbers.
