Title: Alaska.
Question: How much of Alaskan state revenue comes from petroleum extraction?

Title: Adolescence.
Question: What questionaire has been used to measure the age in which adolescents should be able to engage in autonomous behaviors?

Title: Northwestern University.
Question: What is the name of the Northwestern program for students interested in community service?

Title: Muammar Gaddafi.
Question:
In what month and year did the United States remove its military bases from Libya?