Today's puzzler, inspired by the impending arrival on the world scene of 2 new women heads of state/government, plus the birthday of another:
Schoolchildren in many countries are taught that the world has 7 continents (this is not a universally accepted count):
(c) North America
(d) South America
Which is the only continent where a woman not has served of head of state or government in either the 20th or 21st century?