| Independence from Whom | 0 | - | 4.99 | 213,131 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,491 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,864 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,143 |
| Countries by Founding Story | 0 | - | 4.95 | 77,827 |
| Landlocked Countries | 0 | - | 4.99 | 426,144 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,898,202 |
| Recently Independent Countries | 0 | - | 4.98 | 160,379 |
| Countries of the World in 1900 | 0 | - | 4.89 | 86,003 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,818 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,216 |
| Countries by Former Name | 0 | - | 4.99 | 125,859 |
| Historical City to Country | 0 | - | 4.85 | 79,038 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,397 |
| Himalayan Countries | 0 | - | 4.93 | 140,353 |
| Andean Countries | 0 | - | 4.94 | 85,525 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,674 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,098 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,247 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,479 |
| Danube Countries | 0 | - | 4.97 | 72,436 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,633 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,866 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,185 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,657 |
| European Landlocked Countries | 0 | - | 4.99 | 147,634 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,344 |
| Countries with the Most Species | 0 | - | 4.99 | 103,585 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,440 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,784 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,897 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,858 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,595 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,039 |
| Countries in the Alps | 0 | - | 4.87 | 118,816 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,698 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,924 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,980 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,045 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,987 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,285 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,435 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,885 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,443 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,204 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,896 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,756 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,576 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,822 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,912 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,908 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,634 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,358 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,710 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,834 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,210 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,532 |
| Largest Countries By Category | 0 | - | 4.97 | 158,895 |
| Countries by Countries | 0 | - | 4.96 | 63,668 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,293 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,412 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,677 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,072 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,450 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,128 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,806,045 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,448 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,918 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,553 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,216 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,525 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,869 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,785 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,101 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,697 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,503 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,598 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,903 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,669 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,757 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,827 |
| Island Countries | 0 | - | 4.99 | 712,652 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,023 |
| Northernmost Countries | 0 | - | 4.99 | 364,137 |
| Countries of South America | 0 | - | 5.00 | 933,015 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,821 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,127 |
| "Land" Countries | 0 | - | 4.98 | 338,452 |
| Former Countries by Capital | 0 | - | 4.45 | 127,826 |
| Former Countries | 0 | - | 4.77 | 134,244 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,471 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,233 |
| Countries with Megacities | 0 | - | 4.99 | 267,276 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,915 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,175 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,233 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,289 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,269 |
| Countries by Official Language | 0 | - | 4.95 | 196,045 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,690 |
| Countries in their Native Language | 0 | - | 4.99 | 199,785 |
| Subdivisions by Country | 0 | - | 4.87 | 50,628 |
| Megadiverse Countries | 0 | - | 4.96 | 135,296 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,982 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,547 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,715 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,233 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,303 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,577 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,086 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,262 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,584 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,394 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,452 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,159 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,596 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,892 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,419 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,512 |
| Battle to Country | 0 | - | 4.91 | 53,990 |
| World Map Quiz | 0 | - | 4.81 | 65,776 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,392 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,731 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,209 |
| Countries by Road Signs | 0 | - | 4.98 | 54,371 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,312 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,116 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,595 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,647 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,465 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,569 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,768 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,713 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,777 |
| Widest Countries East to West | 0 | - | 4.92 | 130,638 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,604 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,280 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,525 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,077 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,007 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,503 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,511 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,899 |
| Countries with Double Letters | 0 | - | 4.96 | 97,138 |
| Countries that End in N | 0 | - | 4.95 | 172,016 |
| Countries with Five Letters | 0 | - | 4.96 | 284,002 |
| Countries with Six Letters | 0 | - | 4.94 | 214,552 |
| Countries with W | 0 | - | 4.96 | 161,002 |
| Countries with Z | 0 | - | 4.98 | 292,524 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,331 |
| Countries That End in U | 0 | - | 4.95 | 121,215 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,159 |
| Countries that End in O | 0 | - | 4.92 | 160,241 |
| Countries that End in R | 0 | - | 4.87 | 119,198 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,959 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,905 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,186 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,857 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,780 |
| Countries That End in Y | 0 | - | 4.91 | 186,101 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,497 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,304 |
| Countries that End in I | 0 | - | 4.94 | 135,337 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,662 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,073 |
| Countries That End in NIA | 0 | - | 4.92 | 110,084 |
| Countries That End in BIA | 0 | - | 4.93 | 149,603 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,574 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,794 |
| Countries That End in RIA | 0 | - | 4.93 | 127,075 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,412 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,656 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,227 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,665 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,214 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,825 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,349 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,546 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,935 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,663 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,761 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,459 |
| Countries that End in L | 0 | - | 4.94 | 157,153 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,127 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,354 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,553 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,026 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,473 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,486 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,169 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,450 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,299 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,004 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,236 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,251 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,841 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,263 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,503 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,585 |
| One Border Countries | 0 | - | 4.98 | 472,073 |
