How does Wonder Woman control her invisible airplane?

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An amendment to the US Constitution must be ratified by what fraction of all the states?

What does the middle initial stand for in Arthur C. Clarke's name?

What is the official state tree of California?

Which US state is home to the highest mountain peak outside Alaska?

The Gila River flows into what river?

Belgium's name is derived from what Roman province?

What year did the US issue a patent on the production of margarine?

In which film did Donna Summer make her debut as an aspiring disco singer?

Whose tombstone bears the inscription "Everybody Loves Somebody Sometime"?

In 1997, who released the hit song entitled "I'll Be Missing You"?

What 1997 epic was retitled "His Powerful Device Makes Him Famous" for Hong Kong release?

Oslo's Holocaust research center is the former home of what firing squad victim?

What is the fear of mushrooms known as?

Which two cross-border neighbouring cities jointly celebrate July 1 and July 4 holidays with the International Freedom Festival?

In which country would you find the city Geneva?