| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,397 |
| Countries in World War I | 0 | - | 4.88 | 226,597 |
| Countries in World War II | 0 | - | 4.53 | 904,459 |
| Battle to Country | 0 | - | 4.91 | 52,514 |
| Important Cities in WWII | 0 | - | 4.42 | 92,878 |
| Independence from Whom | 0 | - | 4.99 | 209,665 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,729 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,992 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,932 |
| Countries by Founding Story | 0 | - | 4.95 | 76,525 |
| Communist Countries in History | 0 | - | 4.63 | 492,491 |
| Cities Bombed During WWII | 0 | - | 4.08 | 29,902 |
| Recently Independent Countries | 0 | - | 4.98 | 157,979 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,262 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,487 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,147 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,841 |
| Countries by Former Name | 0 | - | 4.99 | 124,274 |
| Historical City to Country | 0 | - | 4.84 | 78,124 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,316 |
| WWII First Names | 0 | - | 4.44 | 41,559 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,215 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,283 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,261 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,605 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,559 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,808 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,212 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,912,940 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,834 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,442 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,271 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,913 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,408 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,713 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,588 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,028 |
| Orthodox Countries | 0 | - | 4.91 | 130,372 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,361 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,033 |
| Monarchies of Europe | 0 | - | 4.90 | 97,305 |
| Monarchies of Asia | 0 | - | 4.97 | 70,595 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,430 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,587 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,650 |
| Landlocked Countries | 0 | - | 4.99 | 413,520 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,841 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,252 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,360 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,238 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,082 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,715,931 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,238 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,116 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,487 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,805 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,091 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,805 |
| Island Countries | 0 | - | 4.99 | 707,585 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,555 |
| Himalayan Countries | 0 | - | 4.95 | 135,328 |
| Andean Countries | 0 | - | 4.94 | 82,810 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,205 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,183 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,884 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,590 |
| Danube Countries | 0 | - | 4.97 | 71,070 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,750 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,530 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,455 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,376 |
| European Landlocked Countries | 0 | - | 4.99 | 145,743 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,188 |
| Countries with the Most Species | 0 | - | 4.99 | 95,238 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,324 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,365 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,951 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,569 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,944 |
| Countries in the Alps | 0 | - | 4.86 | 116,805 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,552 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,243 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,997 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,413 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,152 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,992 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,561 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,743 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,247 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,043 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,193 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,038 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,447 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,731 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,744 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,044 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,632 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,252 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,761 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,234 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,654 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,598 |
| Largest Countries By Category | 0 | - | 4.97 | 156,743 |
| Countries by Countries | 0 | - | 4.96 | 62,249 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,094 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,273 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,373 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,961 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,330 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,758 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,351 |
| Northernmost Countries | 0 | - | 4.99 | 357,687 |
| Countries of South America | 0 | - | 5.00 | 914,574 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,261 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,043 |
| "Land" Countries | 0 | - | 4.98 | 333,626 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,094 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,172 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,143 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,672 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,105 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,245 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,937 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,590 |
| Countries by Independence Day | 0 | - | 4.56 | 52,606 |
| Former Countries by Capital | 0 | - | 4.45 | 127,042 |
| Former Countries | 0 | - | 4.75 | 132,695 |
| Hindu Countries | 0 | - | 4.85 | 49,570 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,607 |
| Political Movements by Country | 0 | - | 4.46 | 72,259 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,779 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,479 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,800,742 |
| One Border Countries | 0 | - | 4.98 | 464,337 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,724 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,631 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,147 |
| Countries with Megacities | 0 | - | 4.99 | 246,811 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,069 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,942 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,490 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,827 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,493 |
| Countries by Official Language | 0 | - | 4.95 | 192,757 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,102 |
| Countries in their Native Language | 0 | - | 4.99 | 196,624 |
| Subdivisions by Country | 0 | - | 4.86 | 50,063 |
| National Founders | 0 | - | 4.40 | 83,647 |
| Megadiverse Countries | 0 | - | 4.97 | 133,893 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,870 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,787 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,918 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,746 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,425 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,857 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,644 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,138 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,209 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,739 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,555 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,408 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,487 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,497 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,668 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,019 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,557 |
| World Map Quiz | 0 | - | 4.81 | 63,491 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,637 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,319 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,697 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 81,802 |
| Countries by Road Signs | 0 | - | 4.98 | 53,094 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,331 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,979 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,940 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,731 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,845 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,053 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,267 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,940 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,332 |
| Widest Countries East to West | 0 | - | 4.92 | 128,600 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,215 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,197 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,562 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,682 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,621 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,032 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,050 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,694 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,578 |
| Countries of Africa | 0 | - | 5.00 | 2,507,655 |
| Countries with Double Letters | 0 | - | 4.97 | 93,374 |
| Countries that End in N | 0 | - | 4.94 | 156,743 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,668 |
| Countries with Six Letters | 0 | - | 4.93 | 210,342 |
| Countries with W | 0 | - | 4.97 | 158,215 |
| Countries with Z | 0 | - | 4.98 | 287,855 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,538 |
