...catheti in a right triangle
...world wars
...countries that produce more oil than Saudi Arabia
...movies that grossed more than $3 billion
...U.S. states bordering the Pacific Ocean
...islands larger than Borneo
...calories in a joule
...lumbar vertebrae
...scientific bases in Antarctica
...femurs in the human body
...muscles in the hand
...capitals in South Africa
...rivers longer than the Volga
...teams in London that have won the Champions League
...national teams that have won at least 2 UEFA European Football Championships
...perfect squares between 10 and 30
...pounds in a kilogram
...landlocked countries in Americas
...goalkeepers who won the Ballon d'Or
...weeks in 1,000 hours
...BRICS countries in Africa
...countries that border Cyprus
...quarters in a basketball game
...planets smaller than Earth in the solar system
...hills of Rome
...natural satellites of Neptune
...stars on the flag of Syria
...nuclei in a eukaryotic cell
...popes born in the 20th century
...foci in an ellipse
...Tropics
...EU countries that do not use the Euro
...colors in the flag of China
...capitals farther south than Montevideo
...symphonies written by Beethoven
...countries bordering Spain
...Abrahamic religions
...countries with more people than the United States
...U.S. presidents elected for two non-consecutive terms
...different teams that have won the UEFA Conference league
...months in which Catholic Easter can be celebrated
...monarchies in Africa
Nommed
Thanks also for the suggestion about the Americas, I didn't know that.