1. What member of the current U.S. Senate, who first took office in 1959, is the longest-term senator?

2. Name the library with the top collection of volumes in the United States. For Answer Man-ers' benefits, we'll list the top five U.S. sites of collections of volumes.

3. How much is the annual pay for the president of the United States?

4. What was President George Washington's annual salary for his term starting in 1789?

5. The penny was formerly made of copper ...

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