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Problem One: A Secret Box

Sep 27th, 2006 by tony

Ok, this is a easy one if you think about it the right way.

Suppose you want to send a valuable object to a friend via postal mail. You have a box which is big enough to hold the object. The box has a locking ring which is large enough to have a lock attached and you have several locks with keys. However, your friend does not have the key to any lock that you have. You cannot send the key in an unlocked box since it may be stolen or copied. How do you send the valuable object, locked, to your friend - so that your friend will be able to open it?

Update: Solutions have been posted.

Posted in Classic, Logical | 3 Comments

3 Responses to “Problem One: A Secret Box”

  1. on 27 Sep 2006 at 2:01 pm   Allen

    um send a key afterwards?

  2. on 27 Sep 2006 at 2:34 pm   tony

    Wow you are sure creative!

  3. on 28 Sep 2006 at 1:40 am   Sarah & Heather

    how about if

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