Frugality is the mother of invention: Tater Tots were invented by the Ore-Ida company in 1953 as a way to utilize the potato shreds left over from the production of French fries. Today, Americans consume about 70 million pounds of Tater Tots annually.

The Web site contains information about:

Building your own robot

B) Wardrobe makeovers for office workers

C) Reaching a live person on customer-service phone lines

D) DNA similarities between people and chimpanzees

Monday’s answer: In 2002, Liverpool’s airport was renamed for John Lennon. The airport’s motto, “Above us, only sky,” is a line from the Lennon tune “Imagine.”

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