| Axis Occupied Countries of WWII | 0 | - | 4.99 | 206,381 |
| Countries in World War I | 0 | - | 4.89 | 208,141 |
| Battle to Country | 0 | - | 4.92 | 34,779 |
| Important Cities in WWII | 0 | - | 4.48 | 82,603 |
| Independence from Whom | 0 | - | 4.99 | 182,845 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 111,810 |
| Most Recently-Settled Countries | 0 | - | 4.91 | 48,593 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,543 |
| Communist Countries in History | 0 | - | 4.65 | 451,389 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,308 |
| Countries of the World in 1900 | 0 | - | 4.88 | 64,787 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 168,589 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 126,071 |
| Countries by Former Name | 0 | - | 4.98 | 92,473 |
| Historical City to Country | 0 | - | 4.82 | 71,845 |
| Cities Bombed During WWII | 0 | - | 4.09 | 26,858 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,436,667 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 220,882 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.76 | 57,173 |
| WWII First Names | 0 | - | 4.46 | 38,421 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 108,808 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 68,186 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 75,619 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,318 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,543 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,262 |
| Countries Settled by Vikings | 0 | - | 4.93 | 110,734 |
| Countries with the Most Christians | 0 | - | 4.93 | 106,027 |
| Warsaw Pact Countries | 0 | - | 4.85 | 79,787 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 71,471 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 85,988 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 161,103 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 317,189 |
| Countries with the Most Catholics | 0 | - | 4.91 | 91,853 |
| Orthodox Countries | 0 | - | 4.91 | 115,996 |
| Countries that Have Won the Most Battles | 0 | - | 4.07 | 35,813 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 68,133 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,015,164 |
| Monarchies of Europe | 0 | - | 4.88 | 86,224 |
| Monarchies of Asia | 0 | - | 4.95 | 53,577 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 97,008 |
| World Leaders of the World Wars | 0 | - | 4.40 | 34,163 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 91,851 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 176,577 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 108,614 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 100,623 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 80,339 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 179,958 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 114,787 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 116,096 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,463 |
| Countries by Independence Day Quiz | 0 | - | 4.64 | 44,325 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 351,528 |
| Countries on the Equator | 0 | - | 4.82 | 132,315 |
| Members of the Arab League | 0 | - | 4.82 | 59,120 |
| Island Countries Quiz | 0 | - | 4.99 | 638,359 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,075 |
| Himalayan Countries | 0 | - | 4.95 | 102,377 |
| Andean Countries | 0 | - | 4.90 | 56,866 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,706 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,543 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,862 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,523 |
| Former Countries by Capital | 0 | - | 4.45 | 103,301 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,701 |
| Danube Countries | 0 | - | 4.97 | 56,351 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,385 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,586 |
| Countries with the Best Passports | 0 | - | 4.86 | 70,279 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,757 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,360 |
| European Landlocked Countries | 0 | - | 4.99 | 114,828 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,733 |
| Countries with the Most Species | 0 | - | 4.99 | 89,079 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,799 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,426 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,802 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,742 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,100 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,442 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,666 |
| Countries in the Alps | 0 | - | 4.82 | 101,780 |
| Former Countries | 0 | - | 4.71 | 123,514 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,593 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,731 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,105 |
| Guerrillas by Country | 0 | - | 4.45 | 38,266 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,685 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,332 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,834 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,011 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,733 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,056 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,124 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,890 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,323 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,400 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,939 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,472 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,944 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,530 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,933 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,930 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 192,592 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,293 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,934 |
| Largest Countries By Category | 0 | - | 4.96 | 143,838 |
| Countries by Countries | 0 | - | 4.95 | 54,047 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 66,767 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,283 |
| Biggest Countries by Area | 0 | - | 5.00 | 924,333 |
| Northernmost Countries | 0 | - | 4.99 | 325,238 |
| Political Movements by Country | 0 | - | 4.47 | 68,179 |
| Countries of South America | 0 | - | 5.00 | 783,205 |
| Countries of Oceania | 0 | - | 5.00 | 881,394 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,106,284 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,550,314 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.87 | 67,161 |
| Top 10 Richest Countries in Asia | 0 | - | 4.86 | 72,379 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 66,873 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 133,563 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 66,807 |
| Biggest Trading Partners - European Union | 0 | - | 4.90 | 64,115 |
| Deadliest U.S. Wars | 0 | - | 4.82 | 156,813 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,301,634 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,458 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,062 |
| Countries with Megacities | 0 | - | 4.99 | 194,616 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,357 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,813 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,617 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,671 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,913 |
| Countries by Official Language | 0 | - | 4.95 | 153,422 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,588 |
| Countries in their Native Language | 0 | - | 4.98 | 176,940 |
| Subdivisions by Country | 0 | - | 4.82 | 46,167 |
| Megadiverse Countries | 0 | - | 4.96 | 124,712 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,883 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 105,987 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,115 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,030 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,287 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,479 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,967 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,797 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,785 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,337 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,474 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,904 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,729 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,033,662 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 79,984 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,708 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 87,475 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,260 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,068 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,021 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,481 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,534 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,842 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,421 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,273 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,816 |
| Widest Countries East to West | 0 | - | 4.93 | 118,679 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,671 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,840 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,084 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,753 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,618 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,478 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,244 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,852 |
| Countries with Double Letters | 0 | - | 4.96 | 66,742 |
| Countries that End in N | 0 | - | 4.94 | 131,196 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,654 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,479 |
| Countries with W | 0 | - | 4.97 | 121,482 |
| Countries with Z | 0 | - | 4.98 | 242,226 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,490 |
| Countries That End in U | 0 | - | 4.94 | 106,837 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 88,195 |
| Countries that End in O | 0 | - | 4.92 | 146,314 |
| Countries that End in R | 0 | - | 4.86 | 96,073 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,827 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,481 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,823 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,543 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,472 |
| Countries That End in Y | 0 | - | 4.90 | 160,770 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,577 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,784 |
| Countries that End in I | 0 | - | 4.92 | 114,128 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,357 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,784 |
| Countries That End in NIA | 0 | - | 4.93 | 100,303 |
| Countries That End in BIA | 0 | - | 4.91 | 125,301 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,333 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,018 |
| Countries That End in RIA | 0 | - | 4.89 | 100,441 |
