What Mozart opera focuses on fiancee swapping as its theme?

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Which University did Lady Gaga attend before dropping out to pursue her music career?

Defenestration is the act of being thrown out of what?

In a standard deck of cards, the Jack, Queen, and King all show both eyes in what suit?

What word refers to minimum attendance necessary for US Congress to conduct business?

What year was the first half of "The Faerie Queene" epic poem published?

What is the number of thieves that Alibaba had?

What is the largest rodent in the US?

Which substance can you not eat, if you have celiac disease?

What disease does the "tine test" detect?

The plane carrying what country’s national rugby team crashed on Friday, October 13, 1972?

The Gotthard Base Tunnel, which opened on June 1, 2016, is located in which country?

Who created the comic book series "Strangers in Paradise"?

In the fable "The Tortoise and the Hare", what animal judges the race?

Who played the mermaid Madison in the 1984 film "Splash"?

Which English band had the hit song "Unbelievable"?