...monarchies in South America
...cities hit by the atomic bomb
...countries beginning with the letter V
...players on a basketball team
...countries crossed by the Nile
...time zones in Brazil
...states in New England
...countries on the island of Borneo
...even divisors of 20
...books in the Harry Potter saga.
...presidents of the United States who have been killed
...founders of Rome
...rivers in Saudi Arabia
...countries ending in “stan”
...countries crossed by the Tropic of Capricorn
...elements with fewer protons than Boron
...deadly sins
...teams that have won at least 10 NBA titles
...books in the Torah
...teams that have won the UEFA Conference League
...cases in the German language
...people who have won at least 2 Nobel Prizes
...vowels
...years in 50 months
...European OPEC countries
...Great Lakes
...official languages of the UN
...lobes in the liver
...strings in a guitar
...capitals further south than Buenos Aires
...legs in an ant
...sides in a square
...faces in a dice
...countries bordering Spain
...stars closer to us than Proxima Centuari
...countries bordering the Baltic Sea
...inches in 20 centimeters
...colors on the flag of Seychelles
...American countries that have hosted the Olympic Games
...children of William, Prince of Wales
...Boroughs of New York City
...sports in the modern pentathlon