Heavenly Bodies: At 40 million kms, this is the star nearest to the Earth?

Questions

General Knowledge To refuel your car you go to a ?

General Knowledge Wedding rings are normally worn on what finger of your hand?

General Knowledge What are catalogued under the Dewey decimal system?

General Knowledge What are the 3 big colleges of the Ivy League (name them alphabetically)?

General Knowledge What company makes Pampers disposable diapers?