| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,647 |
| Countries in World War I | 0 | - | 4.88 | 227,777 |
| Battle to Country | 0 | - | 4.91 | 53,105 |
| Important Cities in WWII | 0 | - | 4.42 | 93,330 |
| Independence from Whom | 0 | - | 4.99 | 211,214 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,622 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,345 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,902 |
| Countries by Founding Story | 0 | - | 4.95 | 77,023 |
| Communist Countries in History | 0 | - | 4.63 | 494,751 |
| Recently Independent Countries | 0 | - | 4.98 | 158,960 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,501 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,636 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,283 |
| Countries by Former Name | 0 | - | 4.99 | 124,882 |
| Historical City to Country | 0 | - | 4.83 | 78,413 |
| Cities Bombed During WWII | 0 | - | 4.08 | 30,085 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,301,359 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,134 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,756 |
| WWII First Names | 0 | - | 4.44 | 41,738 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,324 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,057 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,040 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,305 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,132 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,413 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,039 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,249 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,708 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,435 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,816 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,733 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,441 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,551 |
| Landlocked Countries | 0 | - | 4.99 | 418,390 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,016 |
| Orthodox Countries | 0 | - | 4.92 | 131,220 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,511 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,615 |
| Monarchies of Europe | 0 | - | 4.90 | 97,918 |
| Monarchies of Asia | 0 | - | 4.97 | 70,953 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,759 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,753,912 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,403 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,794 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,676 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,770 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,727 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,173 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 127,240 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,811 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,839 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,745 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,801 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,549 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,470 |
| Countries by Independence Day | 0 | - | 4.61 | 52,704 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,859 |
| Island Countries | 0 | - | 4.99 | 709,548 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,703 |
| Himalayan Countries | 0 | - | 4.94 | 137,175 |
| Andean Countries | 0 | - | 4.95 | 83,796 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,042 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,444 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,730 |
| Former Countries by Capital | 0 | - | 4.45 | 127,349 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,267 |
| Danube Countries | 0 | - | 4.97 | 71,600 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,464 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,998 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,545 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,607 |
| European Landlocked Countries | 0 | - | 4.99 | 146,707 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,044 |
| Countries with the Most Species | 0 | - | 4.99 | 102,842 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,182 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,410 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,565 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,268 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,939 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,319 |
| Countries in the Alps | 0 | - | 4.87 | 117,605 |
| Former Countries | 0 | - | 4.75 | 133,118 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,080 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,268 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,374 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,925 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,033 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,405 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,213 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,138 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,935 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,509 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,449 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,308 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,882 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,156 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,172 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,076 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,024 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,541 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,447 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,117 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,104 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,956 |
| Largest Countries By Category | 0 | - | 4.97 | 157,552 |
| Countries by Countries | 0 | - | 4.96 | 62,792 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,675 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,542 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,137 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,147 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,461 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,277 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,544 |
| Northernmost Countries | 0 | - | 4.99 | 360,253 |
| Political Movements by Country | 0 | - | 4.46 | 72,451 |
| Countries of South America | 0 | - | 5.00 | 922,313 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,202 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,864,991 |
| "Land" Countries | 0 | - | 4.98 | 335,684 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,220 |
| Top 10 Richest Countries in Africa | 0 | - | 4.86 | 75,923 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,273 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,129 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,639 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,470 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,629 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,559 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,857 |
| Countries with Megacities | 0 | - | 4.99 | 255,087 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,718 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,899 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,017 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,890 |
| Countries by Official Language | 0 | - | 4.95 | 194,558 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,422 |
| Countries in their Native Language | 0 | - | 4.99 | 198,103 |
| Subdivisions by Country | 0 | - | 4.86 | 50,267 |
| Megadiverse Countries | 0 | - | 4.96 | 134,737 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,388 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,159 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,724 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,002 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,659 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,806 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,465 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,966 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,853 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,682 |
| Hindu Countries | 0 | - | 4.86 | 49,984 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,955 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,753 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,112 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,303 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,064 |
| World Map Quiz | 0 | - | 4.81 | 64,432 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,350 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,980 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,450 |
| Countries by Road Signs | 0 | - | 4.98 | 53,606 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,414 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,882 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,592 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,218 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,474 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,644 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,788 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,236 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,242 |
| Widest Countries East to West | 0 | - | 4.92 | 129,325 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,375 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,902 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,982 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,482 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,166 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,504 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,219 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,717 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,498 |
| Countries with Double Letters | 0 | - | 4.97 | 95,010 |
| Countries that End in N | 0 | - | 4.95 | 169,803 |
| Countries with Five Letters | 0 | - | 4.96 | 279,611 |
| Countries with Six Letters | 0 | - | 4.94 | 212,378 |
| Countries with W | 0 | - | 4.97 | 159,463 |
| Countries with Z | 0 | - | 4.98 | 289,710 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,665 |
| Countries That End in U | 0 | - | 4.95 | 120,379 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,684 |
| Countries that End in O | 0 | - | 4.92 | 159,167 |
| Countries that End in R | 0 | - | 4.87 | 118,714 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,491 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,231 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,058 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,051 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,637 |
| Countries That End in Y | 0 | - | 4.90 | 185,628 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,166 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,360 |
| Countries that End in I | 0 | - | 4.94 | 134,837 |
