| Countries of the World in 1444 | 0 | - | 4.98 | 59,799 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,060 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,393 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,973 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,878 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,582 |
| Independence from Whom | 0 | - | 4.99 | 210,296 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,159 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,158 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,427 |
| Countries by Founding Story | 0 | - | 4.95 | 76,775 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,810,000 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,375 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,398 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,599,461 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.74 | 45,271 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.77 | 33,132 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,093,328 |
| Recently Independent Countries | 0 | - | 4.98 | 158,266 |
| Countries by Former Name | 0 | - | 4.99 | 124,579 |
| Historical City to Country | 0 | - | 4.84 | 78,265 |
| Landlocked Countries | 0 | - | 4.99 | 415,765 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 559,210 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,868 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,656 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,588 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,470 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,842 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,727 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,969 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,459 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,033 |
| Pixelated World Map | 0 | - | 5.00 | 142,767 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,338 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,126 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,734,218 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,585 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,486 |
| Himalayan Countries | 0 | - | 4.95 | 136,127 |
| Andean Countries | 0 | - | 4.95 | 83,245 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,560 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,743 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,252 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,889 |
| Danube Countries | 0 | - | 4.97 | 71,306 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,066 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,757 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,960 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,904 |
| European Landlocked Countries | 0 | - | 4.99 | 146,015 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,607 |
| Countries with the Most Species | 0 | - | 4.99 | 95,374 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,737 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,285 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,454 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,094 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,746 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,115 |
| Countries in the Alps | 0 | - | 4.86 | 117,192 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,811 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,691 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,185 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,631 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,440 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,179 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,867 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,926 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,728 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,260 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,297 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,164 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,653 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,919 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,924 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,555 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,826 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,367 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,101 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,493 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,331 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,761 |
| Largest Countries By Category | 0 | - | 4.97 | 157,118 |
| Countries by Countries | 0 | - | 4.96 | 62,490 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,751 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,045 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,391 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,433 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,331 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,008 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,179 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,239 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,026 |
| Island Countries | 0 | - | 4.99 | 708,503 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,296 |
| Northernmost Countries | 0 | - | 4.99 | 358,930 |
| Countries of South America | 0 | - | 5.00 | 918,489 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,126 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,855,806 |
| "Land" Countries | 0 | - | 4.98 | 334,214 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,832 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,215 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,667 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,339 |
| Battle to Country | 0 | - | 4.91 | 52,764 |
| Countries by Independence Day | 0 | - | 4.61 | 52,657 |
| Former Countries by Capital | 0 | - | 4.45 | 127,201 |
| Former Countries | 0 | - | 4.75 | 132,901 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,034 |
| Countries with Megacities | 0 | - | 4.99 | 248,470 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,916 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,422 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,307 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,362 |
| Countries by Official Language | 0 | - | 4.95 | 193,531 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,051 |
| Countries in their Native Language | 0 | - | 4.99 | 197,273 |
| Subdivisions by Country | 0 | - | 4.86 | 50,163 |
| Megadiverse Countries | 0 | - | 4.96 | 134,489 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,444 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,041 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,575 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,927 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,937 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,313 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,479 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,321 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,794 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,025 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,541 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,645 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,613 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,816 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,144 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,016 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,264 |
| World Map Quiz | 0 | - | 4.81 | 63,895 |
| Empty World Map without 20 Random Countries | 0 | - | 4.93 | 135,900 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,928 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,634 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,416 |
| Countries by Road Signs | 0 | - | 4.98 | 53,317 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,883 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,581 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,297 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,469 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,168 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,365 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,554 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,102 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,573 |
| Widest Countries East to West | 0 | - | 4.92 | 129,071 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,302 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,551 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,668 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,897 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,889 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,274 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,912 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,652 |
| Countries With the Tallest People | 0 | - | 4.91 | 94,652 |
| Countries with Double Letters | 0 | - | 4.96 | 93,771 |
| Countries that End in N | 0 | - | 4.94 | 157,210 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,148 |
| Countries with Six Letters | 0 | - | 4.93 | 210,797 |
| Countries with W | 0 | - | 4.97 | 158,474 |
| Countries with Z | 0 | - | 4.98 | 288,353 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,830 |
| Countries That End in U | 0 | - | 4.95 | 119,649 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,960 |
| Countries that End in O | 0 | - | 4.92 | 158,686 |
| Countries that End in R | 0 | - | 4.87 | 118,400 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,953 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,507 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,606 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,698 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,258 |
| Countries That End in Y | 0 | - | 4.90 | 185,310 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,691 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,969 |
| Countries that End in I | 0 | - | 4.94 | 134,578 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,556 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,338 |
| Countries That End in NIA | 0 | - | 4.92 | 109,179 |
| Countries That End in BIA | 0 | - | 4.92 | 148,186 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,319 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,683 |
| Countries That End in RIA | 0 | - | 4.93 | 126,236 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,221 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,865 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,739 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,094 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,649 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,061 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,329 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,847 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,740 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,924 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,399 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,064 |
| Countries that End in L | 0 | - | 4.94 | 156,189 |
