| Independence from Whom | 0 | - | 4.99 | 212,739 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,207 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,752 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,894 |
| Countries by Founding Story | 0 | - | 4.95 | 77,662 |
| Landlocked Countries | 0 | - | 4.99 | 424,420 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,774,689 |
| Recently Independent Countries | 0 | - | 4.98 | 159,787 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,723 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,420 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,871 |
| Countries by Former Name | 0 | - | 4.99 | 125,653 |
| Historical City to Country | 0 | - | 4.85 | 78,858 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,589 |
| Himalayan Countries | 0 | - | 4.94 | 139,738 |
| Andean Countries | 0 | - | 4.94 | 85,167 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,345 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,601 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,916 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,208 |
| Danube Countries | 0 | - | 4.97 | 72,262 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,399 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,691 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,842 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,333 |
| European Landlocked Countries | 0 | - | 4.99 | 147,445 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,068 |
| Countries with the Most Species | 0 | - | 4.99 | 103,473 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,206 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,707 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,819 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,737 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,470 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,894 |
| Countries in the Alps | 0 | - | 4.87 | 118,568 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,277 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,582 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,853 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,873 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,798 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,127 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,109 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,737 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,332 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,056 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,786 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,656 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,443 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,675 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,764 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,493 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,515 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,504 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,476 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,166 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,818 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,421 |
| Largest Countries By Category | 0 | - | 4.97 | 158,631 |
| Countries by Countries | 0 | - | 4.96 | 63,500 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,080 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,361 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,643 |
| All Countries by Population With a Map | 0 | - | 4.98 | 110,525 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,271 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,971 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,795,706 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,227 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,764 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,438 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,112 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,451 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,788 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,648 |
| Countries Settled by Vikings | 0 | - | 4.92 | 121,960 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,640 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,135 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,400 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,784 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,148 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,286 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,894 |
| Island Countries | 0 | - | 4.99 | 712,027 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,171 |
| Northernmost Countries | 0 | - | 4.99 | 363,375 |
| Countries of South America | 0 | - | 5.00 | 930,800 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,159 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,885,153 |
| "Land" Countries | 0 | - | 4.98 | 338,040 |
| Former Countries by Capital | 0 | - | 4.45 | 127,746 |
| Former Countries | 0 | - | 4.77 | 134,122 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,390,515 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,777 |
| Countries with Megacities | 0 | - | 4.99 | 266,339 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,488 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,896 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,784 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,005 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,136 |
| Countries by Official Language | 0 | - | 4.95 | 195,761 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,289 |
| Countries in their Native Language | 0 | - | 4.99 | 199,544 |
| Subdivisions by Country | 0 | - | 4.87 | 50,562 |
| Megadiverse Countries | 0 | - | 4.96 | 135,190 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,754 |
| 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 | 163,434 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,503 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,773 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,222 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,191 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,306 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,372 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,093 |
| 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 | 111,998 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,357 |
| Battle to Country | 0 | - | 4.91 | 53,813 |
| World Map Quiz | 0 | - | 4.81 | 65,434 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,574 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,576 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,097 |
| Countries by Road Signs | 0 | - | 4.98 | 54,248 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,978 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,938 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,426 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,218 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,284 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,400 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,592 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,617 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,053 |
| Widest Countries East to West | 0 | - | 4.92 | 130,302 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,558 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,100 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,465 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,977 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,856 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,355 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,467 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,862 |
| Countries with Double Letters | 0 | - | 4.96 | 96,792 |
| Countries that End in N | 0 | - | 4.95 | 171,680 |
| Countries with Five Letters | 0 | - | 4.96 | 283,382 |
| Countries with Six Letters | 0 | - | 4.94 | 214,142 |
| Countries with W | 0 | - | 4.96 | 160,738 |
| Countries with Z | 0 | - | 4.98 | 292,117 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,090 |
| Countries That End in U | 0 | - | 4.95 | 121,072 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,895 |
| Countries that End in O | 0 | - | 4.92 | 159,720 |
| Countries that End in R | 0 | - | 4.87 | 119,111 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,856 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,577 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,998 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,710 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,640 |
| Countries That End in Y | 0 | - | 4.91 | 186,024 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,280 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,133 |
| Countries that End in I | 0 | - | 4.94 | 135,253 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,453 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,973 |
| Countries That End in NIA | 0 | - | 4.92 | 109,959 |
| Countries That End in BIA | 0 | - | 4.93 | 149,456 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,390 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,660 |
| Countries That End in RIA | 0 | - | 4.93 | 126,976 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,264 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,252 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,026 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,460 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,027 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,732 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,229 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,508 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,778 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,578 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,584 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,266 |
| Countries that End in L | 0 | - | 4.94 | 157,031 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,969 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,316 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,647 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,400 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,229 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,213 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,996 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,337 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,128 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,809 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,109 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,190 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,780 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,156 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,124 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,984 |
| One Border Countries | 0 | - | 4.98 | 471,294 |
