It need hardly be remarked that the twists given to the original bands are responsible for this strange result.
Sold Again
Get some one to take a nickel out of his pocket, and, without showing it to you, ascertain the date of the coin, and then turn it face upwards on the palm of his hand. You will now remark that “you can tell the date.”
Appear to scrutinize the coin very attentively, and then, with the utmost importance, tell the owner of the penny the actual day of the month, and smile complacently at his indignation.
Simple Subtraction
If you have fifteen matches and remove six, how can you obtain a remainder of ten?
Fig. 25.—Showing first arrangement of matches.
Arrange the matches as in [Figs. 25] a, b, and c, and ask a friend the above-mentioned question.
When he gives it up, remove the six matches marked A, B, C, D, E, and F, and you will have the result shown in [Fig. 26].