| Axis Occupied Countries of WWII | 0 | - | 4.99 | 206,565 |
| Countries in World War I | 0 | - | 4.89 | 208,316 |
| Battle to Country | 0 | - | 4.92 | 34,870 |
| Important Cities in WWII | 0 | - | 4.48 | 82,681 |
| Independence from Whom | 0 | - | 4.99 | 183,766 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 112,250 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,751 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,873 |
| Communist Countries in History | 0 | - | 4.65 | 451,844 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,686 |
| Countries of the World in 1900 | 0 | - | 4.88 | 65,088 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 168,840 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 126,323 |
| Countries by Former Name | 0 | - | 4.99 | 108,493 |
| Historical City to Country | 0 | - | 4.82 | 71,919 |
| Cities Bombed During WWII | 0 | - | 4.09 | 26,877 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,490,370 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 221,015 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.76 | 57,232 |
| WWII First Names | 0 | - | 4.46 | 38,443 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 108,888 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 68,223 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 75,676 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,353 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,591 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,333 |
| Countries Settled by Vikings | 0 | - | 4.93 | 110,818 |
| Countries with the Most Christians | 0 | - | 4.93 | 106,204 |
| Warsaw Pact Countries | 0 | - | 4.85 | 79,842 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 71,621 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 86,097 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 161,191 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 317,823 |
| Countries with the Most Catholics | 0 | - | 4.91 | 92,019 |
| Orthodox Countries | 0 | - | 4.91 | 116,110 |
| Countries that Have Won the Most Battles | 0 | - | 4.07 | 35,843 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 68,226 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,021,861 |
| Monarchies of Europe | 0 | - | 4.88 | 86,312 |
| Monarchies of Asia | 0 | - | 4.95 | 53,620 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 97,155 |
| World Leaders of the World Wars | 0 | - | 4.40 | 34,193 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 91,983 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 176,788 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 108,707 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 100,757 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 80,428 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 180,051 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 114,870 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 116,131 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,702 |
| Countries by Independence Day Quiz | 0 | - | 4.64 | 44,340 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 351,987 |
| Countries on the Equator | 0 | - | 4.82 | 132,726 |
| Members of the Arab League | 0 | - | 4.82 | 59,380 |
| Island Countries Quiz | 0 | - | 4.99 | 638,980 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,216 |
| Himalayan Countries | 0 | - | 4.95 | 102,563 |
| Andean Countries | 0 | - | 4.90 | 56,991 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,833 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,600 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,923 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,569 |
| Former Countries by Capital | 0 | - | 4.45 | 103,365 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,765 |
| Danube Countries | 0 | - | 4.97 | 56,370 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,419 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,609 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,386 |
| Countries with the Worst Passports | 0 | - | 4.87 | 48,812 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,422 |
| European Landlocked Countries | 0 | - | 4.99 | 114,852 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,791 |
| Countries with the Most Species | 0 | - | 4.99 | 89,093 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,862 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,453 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,828 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,783 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,140 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,469 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,709 |
| Countries in the Alps | 0 | - | 4.82 | 101,872 |
| Former Countries | 0 | - | 4.71 | 123,622 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,681 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,857 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,143 |
| Guerrillas by Country | 0 | - | 4.45 | 38,296 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,760 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,398 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,093 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,076 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,774 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,080 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,188 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,929 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,343 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,428 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,011 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,522 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,010 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,680 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,966 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,981 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 192,938 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,472 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,980 |
| Largest Countries By Category | 0 | - | 4.96 | 143,951 |
| Countries by Countries | 0 | - | 4.96 | 54,119 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 66,800 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,396 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,389 |
| Biggest Countries by Area | 0 | - | 5.00 | 925,261 |
| Northernmost Countries | 0 | - | 4.99 | 325,405 |
| Political Movements by Country | 0 | - | 4.47 | 68,209 |
| Countries of South America | 0 | - | 5.00 | 784,197 |
| Countries of Oceania | 0 | - | 5.00 | 882,686 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,111,528 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,553,010 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.87 | 67,297 |
| Top 10 Richest Countries in Asia | 0 | - | 4.88 | 75,238 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 66,962 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 133,755 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 66,857 |
| Biggest Trading Partners - European Union | 0 | - | 4.90 | 64,206 |
| Deadliest U.S. Wars | 0 | - | 4.82 | 156,973 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,302,727 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,658 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,251 |
| Countries with Megacities | 0 | - | 4.99 | 194,924 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,588 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,918 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,789 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,766 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,248 |
| Countries by Official Language | 0 | - | 4.95 | 153,572 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,931 |
| Countries in their Native Language | 0 | - | 4.98 | 177,058 |
| Subdivisions by Country | 0 | - | 4.82 | 46,191 |
| Megadiverse Countries | 0 | - | 4.96 | 124,796 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 90,048 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 106,045 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,140 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,145 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,346 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,525 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,994 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,984 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,846 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,386 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,500 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,965 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,768 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,037,025 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 80,227 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,800 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 87,592 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,398 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,153 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,109 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,699 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,591 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,912 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,510 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,345 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,875 |
| Widest Countries East to West | 0 | - | 4.93 | 118,763 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,690 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,944 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,117 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,828 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,856 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,555 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,273 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,870 |
| Countries with Double Letters | 0 | - | 4.96 | 67,049 |
| Countries that End in N | 0 | - | 4.94 | 131,500 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,955 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,745 |
| Countries with W | 0 | - | 4.97 | 121,771 |
| Countries with Z | 0 | - | 4.98 | 242,596 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,680 |
| Countries That End in U | 0 | - | 4.94 | 107,015 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 88,402 |
| Countries that End in O | 0 | - | 4.92 | 146,435 |
| Countries that End in R | 0 | - | 4.86 | 96,142 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,904 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,671 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,935 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,629 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,563 |
| Countries That End in Y | 0 | - | 4.90 | 160,836 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,716 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,897 |
| Countries that End in I | 0 | - | 4.92 | 114,186 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,506 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,846 |
| Countries That End in NIA | 0 | - | 4.93 | 100,350 |
| Countries That End in BIA | 0 | - | 4.91 | 125,409 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,438 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,092 |
