Dad always loved a good riddle, puzzle, mind challenge, etc. John's story about the mouse trap is a great example of this. I remember Dad used to play chess, messing with a Rubicks cube, some wooden puzzle thing he picked up at a yard sale...whatever he could find to challenge his mind. I remember once he even bought this math "system" off of the T.V. because it promised to increase your speed to solve math problems exponentially. Of course he made Sherry and I watch it (for the record, I still count on my fingers). Nevertheless, he loved a good riddle too.
I walked into the living room tonight after talking with Becky (doing okay) and Rob was watching Die Hard With a Vengenance. He immediately asks me if I know how to figure out the "water jug" riddle given to Bruce Willis in the movie. He kept going over it and over it with no avail. 5 weeks ago, the first thing I would have done would be to call Dad and see if he could figure it out. Well, I knew he WOULD figure it out, but how quick would be the real challenge. There was an instant pang in my heart that I couldn't make that phone call. I imagine there will be a lot of those moments....
So, I thought it might be fun to see if any of his other kids might be able to solve this riddle that I know Dad would have gotten a kick out of. NO cheating. You can find the answer online, but you know Dad would be frowning if anyone did that. (Yes, Rob and I found it online so we could sleep tonight, but I'm not pretending I figured it out on my own. I still count on my fingers remember.) I'll post the answer in a few days if no one gets it. Good luck!
You have a 5 gallon jug, a 3 gallon jug, and an endless supply of water. What process do you go through to have EXACTLY 4 gallons in one jug? It must be exact, as the jug will be placed on a scale. If measured correctly, you disarm the bomb and save the day!