| Independence from Whom | 0 | - | 4.99 | 212,729 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,200 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,750 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,889 |
| Countries by Founding Story | 0 | - | 4.95 | 77,659 |
| Landlocked Countries | 0 | - | 4.99 | 424,382 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,773,139 |
| Recently Independent Countries | 0 | - | 4.98 | 159,785 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,720 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,414 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,866 |
| Countries by Former Name | 0 | - | 4.99 | 125,649 |
| Historical City to Country | 0 | - | 4.85 | 78,850 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,583 |
| Himalayan Countries | 0 | - | 4.94 | 139,733 |
| Andean Countries | 0 | - | 4.94 | 85,164 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,342 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,593 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,914 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,202 |
| Danube Countries | 0 | - | 4.97 | 72,258 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,396 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,689 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,834 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,329 |
| European Landlocked Countries | 0 | - | 4.99 | 147,443 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,065 |
| Countries with the Most Species | 0 | - | 4.99 | 103,468 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,201 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,707 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,818 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,737 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,466 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,892 |
| Countries in the Alps | 0 | - | 4.87 | 118,567 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,267 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,578 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,850 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,866 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,793 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,126 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,088 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,729 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,332 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,055 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,785 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,655 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,438 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,671 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,762 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,486 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,513 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,502 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,475 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,159 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,811 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,419 |
| Largest Countries By Category | 0 | - | 4.97 | 158,625 |
| Countries by Countries | 0 | - | 4.96 | 63,495 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,074 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,361 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,641 |
| All Countries by Population With a Map | 0 | - | 4.98 | 110,513 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,266 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,968 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,795,563 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,225 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,763 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,434 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,112 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,448 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,786 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,645 |
| Countries Settled by Vikings | 0 | - | 4.92 | 121,957 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,640 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,133 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,398 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,782 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,088 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,277 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,882 |
| Island Countries | 0 | - | 4.99 | 712,009 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,148 |
| Northernmost Countries | 0 | - | 4.99 | 363,360 |
| Countries of South America | 0 | - | 5.00 | 930,761 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,147 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,885,103 |
| "Land" Countries | 0 | - | 4.98 | 338,031 |
| Former Countries by Capital | 0 | - | 4.45 | 127,744 |
| Former Countries | 0 | - | 4.77 | 134,120 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,390,459 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,766 |
| Countries with Megacities | 0 | - | 4.99 | 266,322 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,482 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,891 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,775 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,999 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,134 |
| Countries by Official Language | 0 | - | 4.95 | 195,761 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,281 |
| Countries in their Native Language | 0 | - | 4.99 | 199,539 |
| Subdivisions by Country | 0 | - | 4.87 | 50,561 |
| Megadiverse Countries | 0 | - | 4.96 | 135,190 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,751 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,480 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,380 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,179 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,433 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,502 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,772 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,221 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,181 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,304 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,369 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,091 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,512 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,629 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,993 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,355 |
| Battle to Country | 0 | - | 4.91 | 53,810 |
| World Map Quiz | 0 | - | 4.81 | 65,428 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,562 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,568 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,095 |
| Countries by Road Signs | 0 | - | 4.98 | 54,248 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,973 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,933 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,425 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,207 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,279 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,400 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,590 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,616 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,038 |
| Widest Countries East to West | 0 | - | 4.92 | 130,299 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,558 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,096 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,464 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,977 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,851 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,354 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,465 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,862 |
| Countries with Double Letters | 0 | - | 4.96 | 96,789 |
| Countries that End in N | 0 | - | 4.95 | 171,678 |
| Countries with Five Letters | 0 | - | 4.96 | 283,378 |
| Countries with Six Letters | 0 | - | 4.94 | 214,141 |
| Countries with W | 0 | - | 4.96 | 160,734 |
| Countries with Z | 0 | - | 4.98 | 292,110 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,087 |
| Countries That End in U | 0 | - | 4.95 | 121,070 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,891 |
| Countries that End in O | 0 | - | 4.92 | 159,718 |
| Countries that End in R | 0 | - | 4.87 | 119,110 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,856 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,567 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,997 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,707 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,640 |
| Countries That End in Y | 0 | - | 4.91 | 186,021 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,279 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,128 |
| Countries that End in I | 0 | - | 4.94 | 135,250 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,450 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,973 |
| Countries That End in NIA | 0 | - | 4.92 | 109,957 |
| Countries That End in BIA | 0 | - | 4.93 | 149,451 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,385 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,659 |
| Countries That End in RIA | 0 | - | 4.93 | 126,975 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,262 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,246 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,023 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,456 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,024 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,727 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,227 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,507 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,775 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,577 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,582 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,265 |
| Countries that End in L | 0 | - | 4.94 | 157,030 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,959 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,316 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,588 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,373 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,220 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,203 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,993 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,337 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,123 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,808 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,107 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,190 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,777 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,155 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,093 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,976 |
| One Border Countries | 0 | - | 4.98 | 471,285 |
