| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 181,370 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 137,980 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 92,923 |
| Countries of the World in 1444 | 0 | - | 4.98 | 55,509 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.81 | 52,913 |
| Independence from Whom | 0 | - | 4.99 | 197,743 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 122,094 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 58,901 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 85,088 |
| Countries by Founding Story | 0 | - | 4.94 | 71,892 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 64,737 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,599,971 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 150,906 |
| Countries by Former Name | 0 | - | 4.99 | 119,154 |
| Historical City to Country | 0 | - | 4.83 | 75,046 |
| Countries of the World Quiz | 0 | - | 5.00 | 43,743,088 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 375,098 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 39,447 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,342,897 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,418,633 |
| Most Populous Countries by Year | 0 | - | 4.81 | 101,247 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 129,197 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 71,852 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 79,753 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 56,143 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 69,792 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 91,486 |
| Sahara Desert Countries | 0 | - | 4.98 | 142,070 |
| Himalayan Countries | 0 | - | 4.95 | 119,081 |
| Andean Countries | 0 | - | 4.92 | 66,768 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 55,322 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 110,693 |
| Coffee Producing Countries | 0 | - | 4.81 | 58,368 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 58,027 |
| Danube Countries | 0 | - | 4.97 | 59,983 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 95,704 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,026 |
| Countries with the Best Passports | 0 | - | 4.81 | 78,576 |
| Countries with the Worst Passports | 0 | - | 4.92 | 61,374 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 134,868 |
| European Landlocked Countries | 0 | - | 4.99 | 139,921 |
| Partially Recognized Countries | 0 | - | 4.98 | 96,567 |
| Countries with the Most Species | 0 | - | 4.99 | 91,786 |
| Countries 197 to 205 | 0 | - | 4.87 | 62,034 |
| Countries Settled by Vikings | 0 | - | 4.93 | 116,310 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,347 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,467 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 51,854 |
| Countries that Use the Peso | 0 | - | 4.84 | 48,985 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,413 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 52,871 |
| Countries in the Alps | 0 | - | 4.86 | 109,185 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 89,845 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 96,082 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 74,754 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 82,672 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 109,672 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,204 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,132 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,147 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,459 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,091 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,203 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 50,785 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 38,658 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,464 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,164 |
| Countries with the Most Grassland | 0 | - | 4.93 | 72,825 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 107,302 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,242 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,171 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 218,558 |
| World Countries - Blind Typing | 0 | - | 5.00 | 82,986 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 44,508 |
| Largest Countries By Category | 0 | - | 4.97 | 150,180 |
| Countries by Countries | 0 | - | 4.96 | 57,829 |
| Pixelated World Map | 0 | - | 5.00 | 135,488 |
| Country Flags with the Most White | 0 | - | 4.87 | 130,398 |
| Warsaw Pact Countries | 0 | - | 4.82 | 82,262 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,389 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 58,478 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,061 |
| All Countries by Population With a Map | 0 | - | 4.98 | 90,837 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 82,150 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 82,996 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 75,749 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 357,234 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 378,336 |
| Island Countries Quiz | 0 | - | 4.99 | 686,261 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.75 | 42,465 |
| Biggest Countries by Area | 0 | - | 5.00 | 981,022 |
| Northernmost Countries | 0 | - | 4.99 | 340,244 |
| Countries of South America | 0 | - | 5.00 | 851,041 |
| Countries of Oceania | 0 | - | 5.00 | 961,998 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,703,232 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 167,550 |
| Countries by Independence Day | 0 | - | 4.56 | 45,326 |
| Former Countries by Capital | 0 | - | 4.43 | 107,442 |
| Former Countries | 0 | - | 4.74 | 128,852 |
| Guerrillas by Country | 0 | - | 4.43 | 39,856 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,231,119 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 100,572 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 73,445 |
| Battle to Country | 0 | - | 4.91 | 48,134 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 141,285 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 155,939 |
| Countries with Megacities | 0 | - | 4.99 | 215,087 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 184,711 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 105,174 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 118,529 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 71,943 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 266,837 |
| Countries by Official Language | 0 | - | 4.95 | 182,364 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 279,684 |
| Countries in their Native Language | 0 | - | 4.98 | 187,302 |
| Subdivisions by Country | 0 | - | 4.86 | 48,215 |
| Megadiverse Countries | 0 | - | 4.96 | 129,942 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 120,392 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 110,228 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 49,122 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 154,169 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,408 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 79,646 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,128 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 65,209 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,215 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,396 |
| Countries with the Highest HDI | 0 | - | 4.95 | 133,750 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 71,639 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,014 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 95,988 |
| World Map Quiz | 0 | - | 4.88 | 56,440 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 131,714 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 85,919 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 57,400 |
| Countries by Road Signs | 0 | - | 4.98 | 48,874 |
| Southernmost Countries of the World | 0 | - | 4.99 | 216,802 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 97,581 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 115,081 |
| Countries With the Most Languages | 0 | - | 4.88 | 187,081 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 91,858 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 87,624 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 92,304 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 57,744 |
| Tallest Countries North to South | 0 | - | 4.85 | 114,885 |
| Widest Countries East to West | 0 | - | 4.92 | 123,787 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,961 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 164,385 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,098 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 89,645 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 124,266 |
| Countries with the Most Desert | 0 | - | 4.93 | 122,621 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 67,799 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,349 |
| Countries With the Tallest People | 0 | - | 4.91 | 92,128 |
| Countries with Double Letters | 0 | - | 4.96 | 80,368 |
| Countries that End in N | 0 | - | 4.93 | 144,484 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 243,448 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 198,705 |
| Countries with W | 0 | - | 4.97 | 132,090 |
| Countries with Z | 0 | - | 4.98 | 273,872 |
| Countries with Letters Missing | 0 | - | 4.97 | 175,345 |
| Countries That End in U | 0 | - | 4.95 | 113,418 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 98,924 |
| Countries that End in O | 0 | - | 4.92 | 153,064 |
| Countries that End in R | 0 | - | 4.84 | 99,483 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,483 |
| Countries Ending in "IA" | 0 | - | 4.99 | 196,515 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 162,391 |
| Countries by Last Two Letters | 0 | - | 4.89 | 121,162 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 134,679 |
| Countries That End in Y | 0 | - | 4.91 | 181,254 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 187,908 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 126,654 |
| Countries that End in I | 0 | - | 4.92 | 117,048 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 157,320 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 91,584 |
| Countries That End in NIA | 0 | - | 4.92 | 104,603 |
| Countries That End in BIA | 0 | - | 4.92 | 141,672 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 160,365 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,057 |
| Countries That End in RIA | 0 | - | 4.89 | 104,927 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 105,167 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 213,253 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 126,198 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 117,898 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 83,917 |
| Countries With One Word and Three A's | 0 | - | 4.93 | 47,950 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 97,019 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 119,163 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 45,800 |
| Countries with the Word "And" | 0 | - | 4.98 | 89,024 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 46,790 |
| Countries that End in L | 0 | - | 4.94 | 151,089 |
| "Land" Countries | 0 | - | 4.98 | 298,542 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 195,909 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,759 |
| City to Country Quiz #1 | 0 | - | 4.95 | 138,458 |
| City to Country Quiz #3 | 0 | - | 4.87 | 103,166 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 74,905 |
