Water, Gas, And Electricity.
There are some halfdozen puzzles, as old as the hills, that are
perpetually cropping up, and there is hardly a month in the year that
does not bring inquiries as to their solution. Occasionally one of
these, t...

The Rook's Tour.
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The Six Frogs.
The six educated frogs in the illustration are trained to reverse their
order, so that their numbers shall read 6, 5, 4, 3, 2, 1, with the blank
square in its present position. They can jump to the next square ...

Five Jealous Husbands.
During certain local floods five married couples found themselves
surrounded by water, and had to escape from their unpleasant position in
a boat that would only hold three persons at a time. Every husband was
...

King Arthur's Knights.
King Arthur sat at the Round Table on three successive evenings with his
knightsBeleobus, Caradoc, Driam, Eric, Floll, and Galahadbut on no
occasion did any person have as his neighbour one who had before s...

How To Draw An Oval.
Can you draw a perfect oval on a sheet of paper with one sweep of the
compasses? It is one of the easiest things in the world when you know
how.
...

The Honeycomb Puzzle.
Here is a little puzzle with the simplest possible conditions. Place the
point of your pencil on a letter in one of the cells of the honeycomb,
and trace out a very familiar proverb by passing always from a cel...

The Haberdasher's Puzzle
Many attempts were made to induce the Haberdasher, who was of the party, to propound a puzzle of some kind, b...

The Silk Patchwork
The lady members of the Wilkinson family had made a simple patchwork
quilt, as a small Christmas present, all composed of square pieces of
the same size, as shown in the illustration. It only lacked the four
...

The Board In Compartments.
We cannot divide the ordinary chessboard into four equal square
compartments, and describe a complete tour, or even path, in each
compartment. But we may divide it into four compartments, as in the
illustration...

The Hymnboard Poser.
The worthy vicar of Chumpley St. Winifred is in great distress. A little
church difficulty has arisen that all the combined intelligence of the
parish seems unable to surmount. What this difficulty is I will st...

Ancient Chinese Puzzle.
My next puzzle is supposed to be Chinese, many hundreds of years old,
and never fails to interest. White to play and mate, moving each of the
three pieces once, and once only.
...

A Magic Square Of Composites.
As we have just discussed the construction of magic squares with prime
numbers, the following forms an interesting companion problem. Make a
magic square with nine consecutive composite numbersthe smallest
po...

Youthful Precocity.
The precocity of some youths is surprising. One is disposed to say on
occasion, "That boy of yours is a genius, and he is certain to do great
things when he grows up;" but past experience has taught us that he
...

The Troublesome Eight.
Nearly everybody knows that a "magic square" is an arrangement of
numbers in the form of a square so that every row, every column, and
each of the two long diagonals adds up alike. For example, you would
find l...

A Postoffice Perplexity.
In every business of life we are occasionally perplexed by some chance
question that for the moment staggers us. I quite pitied a young lady in
a branch postoffice when a gentleman entered and deposited a crow...

A Queer Thing In Money.
It will be found that L66, 6s. 6d. equals 15,918 pence. Now, the four
6's added together make 24, and the figures in 15,918 also add to 24. It
is a curious fact that there is only one other sum of money, in pou...

Those Fifteen Sheep.
A certain cyclopaedia has the following curious problem, I am told:
"Place fifteen sheep in four pens so that there shall be the same number
of sheep in each pen." No answer whatever is vouchsafed, so I thought...

The Bicycle Thief.
Here is a little tangle that is perpetually cropping up in various
guises. A cyclist bought a bicycle for L15 and gave in payment a cheque
for L25. The seller went to a neighbouring shopkeeper and got him to
ch...

The Tethered Goat.
Here is a little problem that everybody should know how to solve. The
goat is placed in a halfacre meadow, that is in shape an equilateral
triangle. It is tethered to a post at one corner of the field. What
sh...
