What Madrid museum displays The Surrender of Breda by Velazquez and The Third of May 1808 by Goya?

What one-word title is shared by Justin Timberlake's debut solo album and a 2010 neo-western crime drama series on FX?

What nine-letter word describes one of several forms of the same chemical element, such as diamond, graphite, or buckminsterfullerene ?

In what countries are the following four-letter cities:  Lima, Giza, Cork, Cebu, Kano ?
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What composer's last opera was The Magic Flute ?