• A 1960’s craze still being manufactured today, the lava lamp, has no lava. Its main components are a transparent liquid (often mineral oil), paraffin and a metallic wire to heat the container.

• Former British Prime Minister Sir Edward Heath conducted symphony orchestras while in office, and wrote a 1976 best-selling book, “Music, a Joy for Life.”

A portrait of singer Ella Fitzgerald on display at the Smithsonian’s National Museum of American History in Washington was painted by:

A) Comedian Steve Martin

B) Singer Tony Bennett

C) Author Dr. Seuss

D) Former President Dwight Eisenhower

Tuesday’s answer: There are about 4,000 grains in the average cup of cooked rice.