There are some who attribute a long and happy life to never having tackled a crossword. There is at least one American lady who says otherwise. Still going strong at 100 years old, Bernice Gordon is possibly the world's oldest crossword-puzzle composer.

In our continuing series called Going Strong, Al Jazeera has been visiting centenarians - people who have reached the age of 100.

Al Jazeera's Tom Ackerman reports from Washington DC.

Source: Al Jazeera