Puzzle 1
What number comes next in this sequence:
2 · 5 · 9 · 19 · 37 · ?
Puzzle 2
I was having trouble sleeping last night and I tossed and turned well into the night.
Our local town hall has a clock which strikes on the hour and also strikes just once on the half hour.
During one of my more awake moments I heard the clock strike once, but I could not tell what time it was.
Half an hour later it struck once again, but I still could not tell what time it was.
Finally, half an hour later it struck once again and I knew what the time was.
What time was it?
Puzzle 3
Hidden in the grid below are eight, 7-letter words. Each word begins with the central V and you can move one letter in any direction to the next letter. All of the letters are used exactly once each. What are the words?
| R | E | T | N | R | E | N |
| I | P | M | A | G | I | Y |
| I | L | A | A | A | C | C |
| L | N | A | V | A | C | N |
| A | R | A | A | A | C | A |
| H | N | U | R | I | O | U |
| S | I | L | T | E | D | S |
Note: this puzzle is not interactive, and the letters cannot be clicked.
Puzzle 4
Here we have a rectangular room, measuring 30 feet by 12 feet, and 12 feet high.
There is a spider in the middle of one of the end walls, 1 foot from the ceiling (A).
There is a fly in the middle of the opposite wall, 1 foot from the floor (B).
What is the shortest distance that the spider must crawl in order to reach the fly?
The Spider and the Fly, The Canterbury Puzzles, Henry Ernest Dudeney.
