n Caroll Spinney is the puppeteer who has portrayed both Big Bird and Oscar the Grouch on “Sesame Street” since 1969. And yes, his first name is spelled “Caroll.”

n Presidential retreat Camp David was originally named Shangri-la by FDR, after the “Lost Horizon” locale. President Eisenhower renamed it for his grandson in 1953.

“Bartlett’s Familiar Quotations” lists its quotes in order of the birth date of the source. The quoted person in the newest edition of the book that has the latest birth date is a:

A) Professional athlete

B) Children’s book author

C) Politician

D) Film director

Monday’s answer: The snorkel was invented circa 1938 to allow submarines to stay submerged while still taking in air from above the surface.