[rules-dev] A Happy New Year

Dear Drools Developers, best wishes for a successful New Year 2012. As it is a leap year, you'll have an extra day for pushing Drools ahead ;-) While you are waiting for the bubbly to pop open you might pass the time by solving (I suppose you'll use Drools) the following little problem: Five friends (Bess, Ida, Hilda, Tony, Walt) live next to each other on a small road. The numbers of their houses are 1, 3, 5, 7 and 9. They are 40, 42, 44, 48 and 50 years old. Each of them has a hobby - but no two have the same. The hobbies are: paragliding, biking, volleyball, hiking und handball. The Person living at house no. 3 is 4 years younger than Hilda. Tony who is older than Walt lives in house no. 9. Walt likes biking. The woman who likes paragliding is 44 years old. The person living at no. 5 likes to play a ball sport. The 48-year-old person enjoys hiking. The house number of the person who likes to play handball, is higher by 4 than the house number of the 40-year-old person. Ida is not the youngest woman. Who lives between Bess and the 42-year-old person? How old is Tony? What is the number of Walt's house? Who is 40 years old? What is the number of the house of the 48-year-old person? What is Hilda's hobby?