Puzzle 1
In the illustration we have a sketch of Sir Edwyn de Tudor going to rescue his love, who was held captive by a neighbouring wicked baron.
Sir Edwyn calculated that if he rode at fifteen miles an hour he would arrive at the castle an hour too soon, while if he rode at ten miles an hour he would get there just an hour too late.
Now, it was of the first importance that he should arrive at the exact time appointed, in order that the rescue that he had planned should be a success, and the time of the tryst was five o'clock, when the captive would be taking afternoon tea.
The puzzle is to discover exactly how far Sir Edwyn de Tudor had to ride.
Sir Edwyn De Tudor, Amusements In Mathematics, Henry Ernest Dudeney.
Puzzle 3
River Logall logic puzzles
One fine morning, twelve intrepid travellers found themselves facing a rather large river that they had to cross.
Luckily, there was a log that they could use to cross the river, but only if they crossed in single file.
Can you figure out who crossed first (and the order in which they all crossed)?
Since they crossed from left to right, the first person to cross is on the right, and the last person to cross is on the left.
The names of the travellers were: Alex, Ashley, Billie, Chris, Jessie, Emery, Logan, Quinn, Riley, Ray, Sam, Taylor.
Sam got on the log three people later than Chris, which means that there were two people between them. Chris got on two people after Logan.
Ray got on the log two people earlier than Emery, who got on two people earlier than Logan, who got on three people earlier than Riley. Ray was not the first one on the log.
Alex got on the log two people after Quinn.
Billie got on three people before Quinn.
Jessie got on the log two people before Taylor. Jessie was not the first one on the log.
Taylor got on just after Emery.
Puzzle Copyright © Randall Fine
Puzzle 4
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?
| 3R | 4R | 2R | 2D | 2R | 4D | 2D |
| 2R | 1U | 1U | 3D | 2D | 1R | 2L |
| 3D | 1D | 3R | 1R | 2L | 4L | 1D |
| 1U | 4R | 2L | 3D | 2D | 2L | 4L |
| 4U | 1L | 2D | E | 2R | 1D | 4L |
| 1R | 1D | 1R | 4U | 2R | 3L | 1D |
| 5U | 5U | 2L | 2R | 2U | 5U | 2L |
Note: this puzzle is not interactive, and the safe buttons cannot be clicked.