Ans: the border of the Argentine province of Misiones and the Brazilian state of Parana
Ques: The Iguazu Falls, Iguazu Falls, Iguassu Falls, or Iguacu Falls (Spanish: Cataratas del Iguazu ( kataatas el iwasu); Guarani: Chororo Yguasu (ooo wasu); Portuguese: Cataratas do Iguacu (kataats du iwasu) ) are waterfalls of the Iguazu River on the border of the Argentine province of Misiones and the Brazilian state of Parana. They are the largest waterfalls system in the world. The falls divide the river into the upper and lower Iguazu. The Iguazu River rises near the city of Curitiba. For most of its course, the river flows through Brazil; however, most of the falls are on the Argentine side. Below its confluence with the San Antonio River, the Iguazu River forms the boundary between Argentina and Brazil.

Answer this question based on the passage: where is the iguazu falls located on a map?
CoT: The important part for answering this question is: The Iguazu Falls, Iguazu Falls, Iguassu Falls, or Iguacu Falls (Spanish: Cataratas del Iguazu ( kataatas el iwasu); Guarani: Chororo Yguasu (ooo wasu); Portuguese: Cataratas do Iguacu (kataats du iwasu) ) are waterfalls of the Iguazu River on the border of the Argentine province of Misiones and the Brazilian state of Parana.
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Ans: at the King Abdullah Sports City 's King Abdullah International Stadium in Jeddah , Saudi Arabia
Ques: Greatest Royal Rumble was a professional wrestling pay-per-view event and WWE Network event promoted by WWE for their Raw and SmackDown brands. The event was held on April 27, 2018 at the King Abdullah Sports City's King Abdullah International Stadium in Jeddah, Saudi Arabia. The event was scheduled for 7: 00 p.m. local time. It aired live in the United States at noon EDT, with a pre-show starting at 11 a.m. EDT. At the event, all men's main roster championships were defended, in addition to a 50-man Royal Rumble match.

Answer this question: where is the greatest royal rumble taking place?
CoT: To answer the above question, the relevant sentence is: The event was held on April 27, 2018 at the King Abdullah Sports City's King Abdullah International Stadium in Jeddah, Saudi Arabia.
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Ans: Quincy Jones
Ques: "Mack the Knife" was introduced to the United States hit parade by Louis Armstrong in 1956, but the song is most closely associated with Bobby Darin, who recorded his version at Fulton Studios on West 40th Street, New York City, on December 19, 1958 (with Tom Dowd engineering the recording). Even though Darin was reluctant to release the song as a single, in 1959 it reached number one on the Billboard Hot 100 and number six on the Black Singles chart, and earned him a Grammy Award for Record of the Year. Dick Clark had advised Darin not to record the song because of the perception that, having come from an opera, it would not appeal to the rock and roll audience. In subsequent years, Clark recounted the story with good humor. Frank Sinatra, who recorded the song with Quincy Jones on his L.A. Is My Lady album, called Darin's the "definitive" version. Billboard ranked this version as the No. 2 song for 1959. Darin's version was No. 3 on Billboard's All Time Top 100. In 2003, the Darin version was ranked # 251 on Rolling Stone's "500 Greatest Songs of All Time" list. On BBC Radio 4's Desert Island Discs, pop mogul Simon Cowell named "Mack the Knife" the best song ever written. Darin's version of the song was featured in the movies Quiz Show and What Women Want. Both Armstrong and Darin's versions were inducted by the Library of Congress in the National Recording Registry in 2016.

Who sang mack the knife with frank sinatra?
CoT: The relevant information to answer the above question is: Frank Sinatra, who recorded the song with Quincy Jones on his L.A. Is My Lady album, called Darin's the "definitive" version.
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