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Here are five questions we'll answer on this weekend's Motley Fool Money radio show:

1. With the evolving crisis in Japan and rising tensions in the Middle East, what are the economic implications for investors?

2. Remember Warren Buffett's itchy trigger finger?  The itch got scratched with Berkshire Hathaway's (NYSE: BRK-A), (NYSE: BRK-B) $9 billion purchase of Lubrizol. How will the chemical company fit into Buffett's portfolio of companies?

3. Shares of Nike (NYSE: NKE) dropped following its first profit miss in five years. What will it take to get the stock back on track? 

4. For the first time in its history, Cisco Systems (Nasdaq: CSCO) will begin paying a dividend. What motivated the tech giant to start returning cash to shareholders?

5. Microsoft (Nasdaq: MSFT) announced that it won't introduce any new models of the Zune. Our question: You didn't even know the Zune was still around, did you?

All that, plus New York Times writer Jenny Anderson discusses her new book, Spousonomics: Using Economics to Master Love, Marriage, and Dirty Dishes.

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For all the news and numbers about your favorite companies, you can create your personalized version of My Watchlist, free from the Fool. Add Nike to My Watchlist.

Chris Hill owns shares of Microsoft and Cisco Systems. Berkshire Hathaway and Microsoft are Motley Fool Inside Value recommendations. Berkshire Hathaway and Nike are Motley Fool Stock Advisor picks. The Fool has created a bull call spread position on Cisco Systems. Motley Fool Options has recommended a diagonal call position on Microsoft. The Fool owns shares of Berkshire Hathaway and Microsoft. Motley Fool Alpha LLC owns shares of Cisco Systems. Try any of our Foolish newsletter services free for 30 days. The Motley Fool’s disclosure policyloves March Madness.