| Countries of the World in 1444 | 0 | - | 4.98 | 59,522 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 68,196 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,484 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,145 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,839 |
| Independence from Whom | 0 | - | 4.99 | 209,663 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,728 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,992 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,924 |
| Countries by Founding Story | 0 | - | 4.95 | 76,525 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,800,710 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,939 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,106 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,565 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.74 | 45,147 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.77 | 32,939 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,912,266 |
| Recently Independent Countries | 0 | - | 4.98 | 157,978 |
| Countries by Former Name | 0 | - | 4.99 | 124,273 |
| Historical City to Country | 0 | - | 4.84 | 78,122 |
| Landlocked Countries | 0 | - | 4.99 | 413,513 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 552,764 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,697 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,213 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,282 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,260 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,604 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,558 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,807 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,211 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,834 |
| Pixelated World Map | 0 | - | 5.00 | 142,426 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,270 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,402 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,715,878 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,330 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,546 |
| Himalayan Countries | 0 | - | 4.95 | 135,324 |
| Andean Countries | 0 | - | 4.94 | 82,808 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,204 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,176 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,883 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,587 |
| Danube Countries | 0 | - | 4.97 | 71,069 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,746 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,529 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,452 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,372 |
| European Landlocked Countries | 0 | - | 4.99 | 145,742 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,186 |
| Countries with the Most Species | 0 | - | 4.99 | 95,236 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,324 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,365 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,951 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,569 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,944 |
| Countries in the Alps | 0 | - | 4.86 | 116,805 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,552 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,241 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,997 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,410 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,150 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,992 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,559 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,743 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,239 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,042 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,193 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,038 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,447 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,731 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,744 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,041 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,632 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,252 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,760 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,232 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,653 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,597 |
| Largest Countries By Category | 0 | - | 4.97 | 156,743 |
| Countries by Countries | 0 | - | 4.96 | 62,249 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,371 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,961 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,330 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,650 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,093 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,758 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,785 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,088 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,798 |
| Island Countries | 0 | - | 4.99 | 707,582 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,343 |
| Northernmost Countries | 0 | - | 4.99 | 357,679 |
| Countries of South America | 0 | - | 5.00 | 914,551 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,252 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,025 |
| "Land" Countries | 0 | - | 4.98 | 333,623 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,588 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,071 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,362 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,032 |
| Battle to Country | 0 | - | 4.91 | 52,514 |
| Countries by Independence Day | 0 | - | 4.56 | 52,605 |
| Former Countries by Capital | 0 | - | 4.45 | 127,040 |
| Former Countries | 0 | - | 4.75 | 132,691 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,140 |
| Countries with Megacities | 0 | - | 4.99 | 246,806 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,060 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,938 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,484 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,824 |
| Countries by Official Language | 0 | - | 4.95 | 192,755 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,098 |
| Countries in their Native Language | 0 | - | 4.99 | 196,622 |
| Subdivisions by Country | 0 | - | 4.86 | 50,063 |
| Megadiverse Countries | 0 | - | 4.97 | 133,892 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,781 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,918 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,425 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,857 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,641 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,839 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,136 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,209 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,738 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,554 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,408 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,486 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,494 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,663 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,019 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,791 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,553 |
| World Map Quiz | 0 | - | 4.81 | 63,491 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,792 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,629 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,319 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 63,108 |
| Countries by Road Signs | 0 | - | 4.98 | 53,094 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,330 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,979 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,939 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,725 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,845 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,052 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,267 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,940 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,331 |
| Widest Countries East to West | 0 | - | 4.92 | 128,599 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,215 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,196 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,562 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,682 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,621 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,032 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,050 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,578 |
| Countries With the Tallest People | 0 | - | 4.91 | 94,512 |
| Countries with Double Letters | 0 | - | 4.97 | 93,374 |
| Countries that End in N | 0 | - | 4.94 | 156,719 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,668 |
| Countries with Six Letters | 0 | - | 4.93 | 210,340 |
| Countries with W | 0 | - | 4.97 | 158,214 |
| Countries with Z | 0 | - | 4.98 | 287,852 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,537 |
| Countries That End in U | 0 | - | 4.95 | 119,511 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,524 |
| Countries that End in O | 0 | - | 4.92 | 158,546 |
| Countries that End in R | 0 | - | 4.87 | 118,269 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,856 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,999 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,312 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,483 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,000 |
| Countries That End in Y | 0 | - | 4.90 | 185,196 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,357 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,672 |
| Countries that End in I | 0 | - | 4.94 | 134,407 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,181 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,188 |
| Countries That End in NIA | 0 | - | 4.92 | 109,001 |
| Countries That End in BIA | 0 | - | 4.92 | 147,706 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,050 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,478 |
| Countries That End in RIA | 0 | - | 4.93 | 126,071 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,995 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,168 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,511 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,883 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,348 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,925 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,109 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,637 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,498 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,810 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,122 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,801 |
| Countries that End in L | 0 | - | 4.94 | 155,714 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,141 |
