Here are the basic ones (correct me if i am wrong)

All are return. Single is half the number of points.

Europe Return - 25,000

North America - 50,000 Economy 80,000 Business

Indian Subcontinent - 80,000 & 120,000 Business

Far East - 100,000 Economy (not sure what business is)

Australia - 120,000 & 160,000

Not sure about the other destinations off hand. I am sure other FF's can add more info.