Pirate Postmen
Problem
You are trying to send your brother in Australia a bag of gold coins. You both have a unique lock and key set, along with access to the UPS (the United Pirate Service) to deliver the coins. The UPS will safely deliver your packages, but they will steal anything that is in an unlocked package. You can send packages back and forth to your brother through the UPS as many times as you want.
How can you send the coins to your brother without them being stolen by the pirates?
Clarifications
Can my key unlock both locks?
No, each key only works with the original lock in its set. You and your brother each start with a different lock and key set.
Can I send my key through the UPS?
Yes, but it will get stolen unless it is in a locked package. You should assume anything sent that is not in a locked package will be stolen.
How do I lock the package?
You can use any type of box or container for your package so the choice is yours!
Solution
Send me an email at [email protected]!