...Russian rubles in a dollar
...astronomical units of distance between the Sun and Neptune
...states that recognize Kosovo
...diagonals in a hexagon
...natural satellites around Saturn
...teams that have won the UEFA Champions League.
...weeks in a year
...pairs of spinal nerves in the human body
...tennis players who have won a Grand Slam tournament
...countries larger than France
...muscles in the hand
...millions of bacteria living in the human body
...languages spoken by at least 20 million people
...billionaires in the United Kingdom
...divisors of the number 1000000
...countries in Africa
...metals in the periodic table
...countries bordering Russia or China
...teeth in the mouth of a human being
...countries in the Commonwealth of Nations
...athletes who have run the 100 meters in less than 10 seconds
...squares in a chessboard
...capitals further south of the equator.
...landlocked countries
...parliamentary republics in the world
...living veterans of World War I
...neutrons in a copper atom
...mountains above 6,000 meters in altitude
...football players who have won two World Cups
...countries with more people than Australia
...meters in 50 yards
...states in the United States
...popes with a pontificate of less than one year
...countries whose flag features the color black
...countries that do not border other countries
...books in the Bible
...letters in the Russian Cyrillic alphabet
...cities with more than one million inhabitants in China
...countries bordering the Indian Ocean
...presidents in the history of the United States
...teams that have participated in the Super Bowl
...countries that have won at least 50 medals at the Summer Olympics