What's the Kennection? #28

Welcome to Kennections, a weekly quiz created by Jeopardy! champion/co-host Ken Jennings. Here's how to play: All five answers to the questions below have something in common. Can you figure it out? (Note: We've given you a hint by showing you how many letters are contained within the answer, but this quiz is not interactive.)

1.  What’s the most common metal used for indoor electrical wiring, except for briefly in the 1970s when aluminum was the standard?

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2. In 1998, Lillian Fishburne became the first Black woman appointed to what rank in the U.S. Navy?

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3.  What’s the official state tree of Ohio, the source of the nut that gave Ohioans their nickname?

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4.  What term for a brightly colored Victorian house was first coined in a 1978 book about the “Postcard Row” houses opposite San Francisco’s Alamo Square Park?

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5.  What new Fox series stars Susan Sarandon and Trace Adkins as the heads of a country music dynasty?

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