n With the help of Hal Fittipaldi of Allentown, Pa., we have compiled a list of 20 performers in John Wayne films who had one or more Billboard Top 40 tunes in the U.S. The first half: Paul Anka, Ann-Margaret, Frankie Avalon, Pat Boone, Walter Brennan, Red Buttons, Glen Campbell, Johnny Crawford, Bing Crosby and Fabian.

n The familiar Formica brand of plastic surface is made from paper or fabric laminated with melamine resin. Formica was invented in 1912 by two Westinghouse researchers, and first used as an electrical insulator.

The world’s busiest artificial waterway, in terms of number of ships using it, is located in:

A) Africa

B) Central America

C) Europe

D) Asia

Answer Monday.

Thursday’s word: Sushi literally means “it is sour” in Japanese.

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