Here is a question about this article: Since the 19th century, many if not all presidents were assisted by a central figure or "gatekeeper", sometimes described as the President's Private Secretary, sometimes with no official title at all. Eisenhower formalized this role, introducing the office of White House Chief of Staff – an idea he borrowed from the United States Army. Every president after Lyndon Johnson has also appointed staff to this position. Initially, Gerald Ford and Jimmy Carter tried to operate without a chief of staff, but each eventually appointed one.
What is the answer to this question: Along with Ford, what president initially didn't appoint a Chief of Staff but later did?
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So... Jimmy Carter


Here is a question about this article: Portugal lost much of its wealth and status with the destruction of Lisbon in a 1755 earthquake, occupation during the Napoleonic Wars, and the independence of Brazil, its wealthiest colony, in 1822. After the 1910 revolution deposed the monarchy, the democratic but unstable Portuguese First Republic was established, later being superseded by the "Estado Novo" right-wing authoritarian regime. Democracy was restored after the Portuguese Colonial War and the Carnation Revolution in 1974. Shortly after, independence was granted to all its colonies, with the exception of Macau, which was handed over to China in 1999. This marked the end of the longest-lived European colonial empire, leaving a profound cultural and architectural influence across the globe and a legacy of over 250 million Portuguese speakers today.
What is the answer to this question: How many Portugese speakers are there today?
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So... 250 million


Here is a question about this article: The Berggarten is an important European botanical garden.[citation needed] Some points of interest are the Tropical House, the Cactus House, the Canary House and the Orchid House, which hosts one of the world's biggest collection of orchids, and free-flying birds and butterflies. Near the entrance to the Berggarten is the historic Library Pavillon. The Mausoleum of the Guelphs is also located in the Berggarten. Like the Great Garden, the Berggarten also consists of several parts, for example the Paradies and the Prairie Garden. There is also the Sea Life Centre Hanover, which is the first tropical aquarium in Germany.[citation needed]
What is the answer to this question: What is the name of the area inside the Berggarten that hosts one of the world's biggest collection of orchids?
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So...
Orchid House