A person having a certain number of counters in each
hand, to tell how inany he has altogether... 81
Several cards being given, to tell which of them a per-
son has thought of
Another problem of the same kind
To make all the cards of the same kind be found toge-
ther, however often the pack may have been
The four indivisible kings
To write down on a piece of paper the heap of cards
which a person will choose.
Several cards being presented to several persons, to
guess that which each has thought of .. ib.
Three cards being presented to three persons, to guess
that which each has chosen
To tell the number of spots on all the bottom cards of
several heaps, arranged on a table...
To name all the cards of a pack.
To make a person believe you can distinguish the
cards by their smell..
A pack of cards being divided into two parts, to disco-
ver whetehr the number in each be odd or
To tell rhe number of spots on several cards which any
person has chosen....
A person having drawn four cards from a pack, to tell
the one he has thought of
Three things privately distributed to three persons, to
guess that which each has got.......
To tell, by inspecting a watch, at what hour a person
has resolved to rise next morning
Two persons agree to take alternately numbers less'
than a given number, and to add them toge-
ther till one of them has reached a certain
sum, by what means one of them can reach
that sum before the other
Sixteen counters being disposed in two rows, to find
that which a person has thought of
A certain number of cards being showu to a person, to
guess that which he has thought of ...
To arrange 30 criminals in such a manner as to save
15 of them, &c...
The game of the nosegays
A man has a wolf, a goat, and a cabbage, to carry over
a river, &c.
To dispose counters in the eight external cells of a
square, so that there shall always be nine in
each row, and yet the whole number shall
vary from 20 to 32