| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,889 |
| Countries in World War I | 0 | - | 4.88 | 229,543 |
| Battle to Country | 0 | - | 4.91 | 54,180 |
| Important Cities in WWII | 0 | - | 4.42 | 94,322 |
| Independence from Whom | 0 | - | 4.99 | 213,591 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,788 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,970 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,398 |
| Countries by Founding Story | 0 | - | 4.95 | 77,961 |
| Communist Countries in History | 0 | - | 4.63 | 499,021 |
| Recently Independent Countries | 0 | - | 4.98 | 160,601 |
| Countries of the World in 1900 | 0 | - | 4.89 | 86,329 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 197,263 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,649 |
| Countries by Former Name | 0 | - | 4.99 | 126,052 |
| Historical City to Country | 0 | - | 4.85 | 79,130 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,376 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,021,181 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,699 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.78 | 78,424 |
| WWII First Names | 0 | - | 4.45 | 42,032 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,764 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,088 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,656 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,340 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,600 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,967 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,933 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,238 |
| Countries with the Most Christians | 0 | - | 4.93 | 145,065 |
| Warsaw Pact Countries | 0 | - | 4.83 | 85,029 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,447 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,877 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,874 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,435 |
| Landlocked Countries | 0 | - | 4.99 | 427,892 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,755 |
| Orthodox Countries | 0 | - | 4.92 | 133,046 |
| Countries that Have Won the Most Battles | 0 | - | 4.01 | 39,834 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,662 |
| Monarchies of Europe | 0 | - | 4.90 | 99,112 |
| Monarchies of Asia | 0 | - | 4.97 | 71,657 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,400 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,816,936 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,795 |
| World Leaders of the World Wars | 0 | - | 4.36 | 38,093 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,207 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,106 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,556 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,962 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 93,025 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,155 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 128,058 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,848 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,200 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,232 |
| Countries by Independence Day | 0 | - | 4.62 | 52,890 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,749 |
| Island Countries | 0 | - | 4.99 | 713,298 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,204 |
| Himalayan Countries | 0 | - | 4.93 | 141,087 |
| Andean Countries | 0 | - | 4.94 | 85,939 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 65,039 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,685 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,588 |
| Former Countries by Capital | 0 | - | 4.45 | 127,929 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,783 |
| Danube Countries | 0 | - | 4.97 | 72,627 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,899 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,038 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,581 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 151,059 |
| European Landlocked Countries | 0 | - | 4.99 | 147,843 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,637 |
| Countries with the Most Species | 0 | - | 4.99 | 103,682 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,745 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,840 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,984 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,972 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,722 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,205 |
| Countries in the Alps | 0 | - | 4.87 | 119,076 |
| Former Countries | 0 | - | 4.77 | 134,362 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,169 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,286 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,102 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,236 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,212 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,437 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,659 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,050 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,550 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,365 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,987 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,860 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,722 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,980 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,080 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,308 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,775 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,886 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,936 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,646 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,746 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,655 |
| Largest Countries By Category | 0 | - | 4.97 | 159,217 |
| Countries by Countries | 0 | - | 4.97 | 63,872 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,399,019 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 73,150 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,554 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,465 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,727 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,311 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,948 |
| Northernmost Countries | 0 | - | 4.99 | 364,925 |
| Political Movements by Country | 0 | - | 4.46 | 72,857 |
| Countries of South America | 0 | - | 5.00 | 935,166 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,726 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,895,276 |
| "Land" Countries | 0 | - | 4.98 | 339,218 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 95,830 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,198 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,511 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,879 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,462 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,115 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,457,119 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,280 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,716 |
| Countries with Megacities | 0 | - | 4.99 | 268,288 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,345 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,444 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,690 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,558 |
| Countries by Official Language | 0 | - | 4.95 | 196,363 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,130 |
| Countries in their Native Language | 0 | - | 4.99 | 200,074 |
| Subdivisions by Country | 0 | - | 4.87 | 50,689 |
| Megadiverse Countries | 0 | - | 4.96 | 149,896 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,240 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,604 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,871 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,277 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,580 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,665 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,226 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,304 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,935 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,534 |
| Hindu Countries | 0 | - | 4.86 | 50,720 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,543 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,258 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,684 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 72,022 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,942 |
| World Map Quiz | 0 | - | 4.81 | 66,007 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 160,277 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,881 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 105,085 |
| Countries by Road Signs | 0 | - | 4.98 | 54,509 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,671 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,313 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,792 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,113 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,634 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,753 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,915 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,794 |
| Tallest Countries North to South | 0 | - | 4.85 | 131,036 |
| Widest Countries East to West | 0 | - | 4.92 | 130,923 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,641 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,489 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,594 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,214 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,512 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,674 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,555 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,935 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 55,066 |
| Countries with Double Letters | 0 | - | 4.96 | 97,822 |
| Countries that End in N | 0 | - | 4.95 | 172,823 |
| Countries with Five Letters | 0 | - | 4.96 | 284,896 |
| Countries with Six Letters | 0 | - | 4.94 | 215,161 |
| Countries with W | 0 | - | 4.96 | 161,456 |
| Countries with Z | 0 | - | 4.98 | 293,223 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,825 |
| Countries That End in U | 0 | - | 4.95 | 121,472 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,583 |
| Countries that End in O | 0 | - | 4.92 | 160,439 |
| Countries that End in R | 0 | - | 4.87 | 119,324 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,093 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,304 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 187,866 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,318 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 144,004 |
| Countries That End in Y | 0 | - | 4.91 | 186,218 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,549 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,510 |
| Countries that End in I | 0 | - | 4.94 | 135,468 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,489 |
