Yesterday's Answer:
The metals silver, cadmium, and copper can be used to make green gold.
Today's Question:
Which war gave rise to the term "fifth columnists."
I don't know.
(Sources: American Mensa, email transmission, December 23, 2011; http://chemistry.about.com/od/jewelrychemistry/a/goldalloys.htm; www.indiamart.com)
Compiled by Otto Ladensack with Patricia Ladensack
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