You are a performer. You take an ordinary box of
matches, open it at the end where no head of match is visible and show
it to your audience (see Fig. 1). The heads are all at the other end
of the box.
Now you close the box in front of your spectators, give it a shake,
and then reopen it (see Fig. 2). Everybody can see a match inside the
box turned round with its head visible.
Then you let the spectators examine the box and the matches to see
they are all sound.
Do you have any suggestions how such a trick can be performed?
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