n Silly Putty was invented in the 1940s by a General Electric researcher trying to develop a synthetic rubber. Quite a few practical uses for it were found after it became a success as a toy. Silly Putty is great for picking up lint and pet hair, for example, and the crew of Apollo 8 used it to secure tools in its weightless environment.

Which of these celebrities does NOT hit “The Big 5-0” in 2007? In other words, who does not celebrate their 50th birthday this year?

A) Cartoonist Scott Adams

B) Singer Donny Osmond

C) Actor Jim Carrey

D) TV letter-revealer Vanna White

Answer Monday.

Thursday’s answer: Arresting wires are the cables on aircraft carriers that are used to help stop incoming planes as they land.