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7 men got on an empty bus, paid the driver, and sat down. Each man carried 7 bags, and in each bag there were 7 dogs. Each dog had 7 puppies. No one was missing a leg. How many legs were there on the bus?

[b]The solution:[/b]
Dogs’ legs: 7 x 7 x 7 x 4=[b]1372[/b]
Puppies’ legs: 7 x 7 x 7 x 7 x 4=[b]9604[/b]
Men’s legs: 7 x 2=[b]14[/b]
Driver’s legs: [b]2[/b]

1372 + 9604 + 14 + 2=[b]10992[/b]

Congratulations to those who solved it correctly!


[b]THIS MONTH’S RIDDLE: EINSTEIN’S PUZZLE[/b]

This month, we’ve given you a challenge straight from the genius mind of Albert Einstein himself. It’s said that Albert Einstein invented this riddle when he was a little boy and stated that “only 2 percent of the world’s population can solve it.” (Many people question the authenticity of this claim and insist that Einstein never wrote the riddle – but it’s a good story!)

There are no tricks – just logic – so don’t give up!

1. On a street, there are five houses painted five different colors.
2. In each house lives a person of a different nationality.
3. These fives homeowners each drink a different beverage, smoke a different brand of cigar, and keep a different pet.

[b]THE QUESTION: WHO OWNS THE FISH?[/b]

Hints:

1. The Brit lives in a red house.
2. The Swede keeps dogs as pets.
3. The Dane drinks tea.
4. The green house is next to and on the left of the white house.
5. The owner of the green house drinks coffee.
6. The person who smokes Pall Mall owns birds.
7. The owner of the yellow house smokes Dunhill.
8. The man living in the center house drinks milk.
9. The Norwegian lives in the first house.
10. The man who smokes Blends lives next to the one who keeps cats.
11. The man who keeps horses lives next to the man who smokes Dunhill.
12. The man who smokes Blue Master drinks beer.
13. The German smokes Prince.
14. The Norwegian lives next to the blue house.
15. The man who smokes Blends has a neighbor who drinks water.

Once you think you’ve got the correct answer, type www.sysaid.com/nationality to see if you’re right. For example, if you think the Italian owns the fish, type www.sysaid.com/italian. (No, Italian is not actually a real option – just to save any further confusion!)

Good luck!
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For those of you who aren't familiar with this type of puzzle, here's a grid to help you get started:

[img]http://www.tlstyer.com/LogicPuzzleGrids/6,5.png[/img]

Fill in all the variables in the long fields on the sides. Use checkmarks and Xs to indicate known true and known false data.

I already have a finished one with all five houses marked in order by occupant, cigar, pet, and beverage...but I won't post that yet, of course ]]> http://www.ilient.com/Sysforums/posts/preList/3664/16768.page http://www.ilient.com/Sysforums/posts/preList/3664/16768.page GMT http://www.ilient.com/Sysforums/posts/preList/3664/16798.page http://www.ilient.com/Sysforums/posts/preList/3664/16798.page GMT but it came out real similar to the other two techniques mentioned.]]> http://www.ilient.com/Sysforums/posts/preList/3664/16818.page http://www.ilient.com/Sysforums/posts/preList/3664/16818.page GMT
About halfway through the puzzle I drew five houses in a row in the white space and started filling in details. It helps to visualize it, especially when reading the hints about who lives next to whom. I came close to making mistakes but was able to catch myself because it didn't fit with what I could see when looking at the houses.]]> http://www.ilient.com/Sysforums/posts/preList/3664/16821.page http://www.ilient.com/Sysforums/posts/preList/3664/16821.page GMT