| Independence from Whom | 0 | - | 4.99 | 201,982 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 125,183 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,039 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 88,296 |
| Countries by Founding Story | 0 | - | 4.95 | 73,618 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 389,277 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,817,356 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 153,216 |
| Countries of the World in 1900 | 0 | - | 4.88 | 77,483 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 185,253 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 141,597 |
| Countries by Former Name | 0 | - | 4.99 | 120,951 |
| Historical City to Country | 0 | - | 4.83 | 76,160 |
| Sahara Desert Countries | 0 | - | 4.97 | 148,877 |
| Himalayan Countries | 0 | - | 4.94 | 125,063 |
| Andean Countries | 0 | - | 4.93 | 70,396 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 57,961 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 115,301 |
| Coffee Producing Countries | 0 | - | 4.83 | 61,326 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 60,466 |
| Danube Countries | 0 | - | 4.97 | 61,592 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 97,916 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 82,631 |
| Countries with the Worst Passports | 0 | - | 4.92 | 75,064 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 140,550 |
| European Landlocked Countries | 0 | - | 4.99 | 142,004 |
| Partially Recognized Countries | 0 | - | 4.98 | 99,693 |
| Countries with the Most Species | 0 | - | 4.99 | 93,035 |
| Countries 197 to 205 | 0 | - | 4.87 | 64,632 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 47,044 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,127 |
| Countries that Use the Peso | 0 | - | 4.89 | 56,962 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 70,486 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 54,374 |
| Countries in the Alps | 0 | - | 4.86 | 111,872 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 91,498 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 99,287 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 75,995 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 84,417 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 111,576 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 92,568 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 96,051 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 50,425 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 48,419 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 59,429 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 51,676 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 39,487 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,735 |
| Arctic Ocean Countries | 0 | - | 4.94 | 76,422 |
| Countries with the Most Grassland | 0 | - | 4.93 | 74,225 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 110,676 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 65,384 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 57,313 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.94 | 40,431 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 225,772 |
| World Countries - Blind Typing | 0 | - | 5.00 | 97,308 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,643 |
| Largest Countries By Category | 0 | - | 4.97 | 152,370 |
| Countries by Countries | 0 | - | 4.96 | 59,074 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,445,622 |
| Country Flags with the Most White | 0 | - | 4.85 | 133,124 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,926 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,520 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 84,684 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,519,659 |
| Most Populous Countries by Year | 0 | - | 4.81 | 104,117 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 131,039 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 73,196 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 81,289 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 64,929 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 70,987 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 93,386 |
| Countries Settled by Vikings | 0 | - | 4.93 | 117,536 |
| Warsaw Pact Countries | 0 | - | 4.82 | 82,835 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 61,476 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 94,860 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 362,400 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 386,040 |
| Island Countries Quiz | 0 | - | 4.99 | 694,662 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,005,020 |
| Northernmost Countries | 0 | - | 4.99 | 344,735 |
| Countries of South America | 0 | - | 5.00 | 872,981 |
| Countries of Oceania | 0 | - | 5.00 | 988,350 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,752,719 |
| Former Countries by Capital | 0 | - | 4.44 | 119,425 |
| Former Countries | 0 | - | 4.74 | 129,939 |
| Guerrillas by Country | 0 | - | 4.43 | 40,245 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,281,924 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 162,158 |
| Countries with Megacities | 0 | - | 4.99 | 221,685 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 188,908 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 107,463 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 128,525 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 74,811 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 295,864 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 169,154 |
| Countries by Official Language | 0 | - | 4.95 | 185,826 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 284,285 |
| Countries in their Native Language | 0 | - | 4.98 | 190,208 |
| Subdivisions by Country | 0 | - | 4.85 | 48,838 |
| Megadiverse Countries | 0 | - | 4.96 | 131,158 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 123,754 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 53,314 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 122,554 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 73,417 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 49,547 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 156,705 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 150,075 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 80,950 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,612 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 69,328 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 105,259 |
| Countries Furthest from the United States | 0 | - | 4.93 | 86,407 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,886 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 72,594 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 69,102 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 100,296 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 75,055 |
| Battle to Country | 0 | - | 4.91 | 49,534 |
| World Map Quiz | 0 | - | 4.87 | 58,915 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 138,505 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 87,687 |
| Countries by Road Signs | 0 | - | 4.98 | 50,327 |
| Southernmost Countries of the World | 0 | - | 4.99 | 220,116 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 99,815 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 117,597 |
| Countries With the Most Languages | 0 | - | 4.89 | 191,612 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 96,101 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 89,432 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 94,648 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,907 |
| Tallest Countries North to South | 0 | - | 4.84 | 116,516 |
| Widest Countries East to West | 0 | - | 4.92 | 125,583 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,402 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 181,383 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,929 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 91,038 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 126,141 |
| Countries with the Most Desert | 0 | - | 4.93 | 124,022 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,251 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,789 |
| Countries with Double Letters | 0 | - | 4.97 | 84,755 |
| Countries that End in N | 0 | - | 4.94 | 148,383 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 248,829 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 202,705 |
| Countries with W | 0 | - | 4.97 | 151,755 |
| Countries with Z | 0 | - | 4.98 | 278,531 |
| Countries with Letters Missing | 0 | - | 4.97 | 178,372 |
| Countries That End in U | 0 | - | 4.95 | 115,570 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 102,471 |
| Countries that End in O | 0 | - | 4.92 | 155,378 |
| Countries that End in R | 0 | - | 4.83 | 100,566 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 152,523 |
| Countries Ending in "IA" | 0 | - | 4.99 | 199,962 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 164,576 |
| Countries by Last Two Letters | 0 | - | 4.88 | 131,196 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 136,923 |
| Countries That End in Y | 0 | - | 4.91 | 182,748 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 190,670 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.93 | 146,530 |
| Countries that End in I | 0 | - | 4.92 | 117,961 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 159,671 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 92,976 |
| Countries That End in NIA | 0 | - | 4.92 | 105,753 |
| Countries That End in BIA | 0 | - | 4.92 | 143,644 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 162,195 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 115,559 |
| Countries That End in RIA | 0 | - | 4.89 | 106,075 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 106,805 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 217,651 |
| Divided Country Name Puzzle #2 | 0 | - | 4.98 | 128,434 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 120,381 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 86,202 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 71,835 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 49,396 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 98,963 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 120,902 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 46,858 |
| Countries with the Word "And" | 0 | - | 4.98 | 90,869 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 48,890 |
| Countries that End in L | 0 | - | 4.94 | 152,808 |
| "Land" Countries | 0 | - | 4.98 | 301,006 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 198,721 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,172 |
| City to Country Quiz #1 | 0 | - | 4.96 | 151,330 |
| City to Country Quiz #3 | 0 | - | 4.87 | 105,414 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 76,132 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 221,588 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 194,194 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 123,209 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 158,179 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 217,894 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 148,189 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 69,281 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 106,317 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.94 | 85,160 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 60,265 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,391,805 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 366,999 |
| One Border Countries | 0 | - | 4.98 | 447,892 |
