Problem: Which nation's Supreme Court legalized same sex marriage in June 2015?
Answer: usa

Problem: Which US state in 1907 was the last to declare Christmas a legal holiday?
Answer: oklahoma

Problem: Which artist and sculptor who died in 2010 was nicknamed Spiderwoman?
Answer: louise bourgeois

Problem: In which US National Park is the geyser known as 'Old Faithful'?
Answer:
yellowstone