Weekly Problem 14 - 2009
Five friends live in five towns in southern France. In which town should they meet to keep the total travelling distance as small as possible?
In a club, there are four committees, which are organised according to some rules. How many people are there in the committee?
Weekly Problem 27 - 2011
Pizza, Indian or Chinese takeaway. Each teenager from a class only likes two of these, but can you work which two?