Problem: What were installed on the White House roof by Jimmy Carter (but removed by Ronald Reagan)?
Answer: solar panels

Problem: According to Irish mythology, which great warrior was responsible for the building of the 'Giant's Causeway' to link the shores of Scotland and Ireland?
Answer: finn mccool

Problem: Stapleton international airport is in which US state?
Answer: colorado

Problem: What is the official language of Cambodia ?
Answer:
khmer