| World Map Quiz | 0 | - | 4.81 | 65,832 |
| Landlocked Countries | 0 | - | 4.99 | 426,629 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,924,769 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,599 |
| Himalayan Countries | 0 | - | 4.93 | 140,528 |
| Andean Countries | 0 | - | 4.94 | 85,644 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,780 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,251 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,337 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,571 |
| Danube Countries | 0 | - | 4.97 | 72,478 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,695 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,906 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,290 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,747 |
| European Landlocked Countries | 0 | - | 4.99 | 147,679 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,415 |
| Countries with the Most Species | 0 | - | 4.99 | 103,607 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,526 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,791 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,917 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,883 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,624 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,081 |
| Countries in the Alps | 0 | - | 4.87 | 118,868 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,819 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,013 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,017 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,103 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,046 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,330 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,479 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,926 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,475 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,247 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,921 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,790 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,622 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,857 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,956 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,018 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,665 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,723 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,761 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,980 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,321 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,561 |
| Largest Countries By Category | 0 | - | 4.97 | 158,961 |
| Countries by Countries | 0 | - | 4.97 | 63,720 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,342 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,427 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,689 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,476 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,160 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,808,260 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,033 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,874 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,031 |
| Island Countries | 0 | - | 4.99 | 712,782 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,455 |
| Northernmost Countries | 0 | - | 4.99 | 364,315 |
| Countries of South America | 0 | - | 5.00 | 933,496 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,490 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,151 |
| "Land" Countries | 0 | - | 4.98 | 338,606 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,414 |
| Europe Map Quiz | 0 | - | 5.00 | 4,790,471 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,343 |
| Countries with Megacities | 0 | - | 4.99 | 267,496 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,999 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,240 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,332 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,341 |
| Countries by Official Language | 0 | - | 4.95 | 196,127 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,795 |
| Countries in their Native Language | 0 | - | 4.99 | 199,847 |
| Independence from Whom | 0 | - | 4.99 | 213,243 |
| Subdivisions by Country | 0 | - | 4.87 | 50,642 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,568 |
| Megadiverse Countries | 0 | - | 4.96 | 145,816 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,041 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,558 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,756 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,240 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,361 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,892 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,193 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,596 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,129 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,275 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,653 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,439 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,467 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,181 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,609 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,923 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,547 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,576 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,761 |
| Countries by Founding Story | 0 | - | 4.95 | 77,861 |
| Countries by Road Signs | 0 | - | 4.98 | 54,396 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,390 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,164 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,627 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,750 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,489 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,612 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,797 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,735 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,858 |
| Widest Countries East to West | 0 | - | 4.92 | 130,780 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,619 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,316 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,538 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,105 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,051 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,546 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,518 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,909 |
| Countries with Double Letters | 0 | - | 4.96 | 97,273 |
| Countries that End in N | 0 | - | 4.95 | 172,358 |
| Countries with Five Letters | 0 | - | 4.96 | 284,250 |
| Countries with Six Letters | 0 | - | 4.94 | 214,675 |
| Countries with W | 0 | - | 4.96 | 161,088 |
| Countries with Z | 0 | - | 4.98 | 292,660 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,430 |
| Countries That End in U | 0 | - | 4.95 | 121,270 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,232 |
| Countries that End in O | 0 | - | 4.92 | 160,279 |
| Countries that End in R | 0 | - | 4.87 | 119,226 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,987 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,978 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 174,937 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,929 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,014 |
| Countries That End in Y | 0 | - | 4.91 | 186,122 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,672 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,341 |
| Countries that End in I | 0 | - | 4.94 | 135,368 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,795 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,096 |
| Countries That End in NIA | 0 | - | 4.92 | 110,108 |
| Countries That End in BIA | 0 | - | 4.93 | 149,656 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,834 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,822 |
| Countries That End in RIA | 0 | - | 4.93 | 127,100 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,456 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,767 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,271 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,732 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,287 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,854 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,375 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,561 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,977 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,681 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,806 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,502 |
| Countries that End in L | 0 | - | 4.94 | 157,189 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,266 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,633 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,362 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,622 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,066 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,499 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,541 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,225 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,475 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,341 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,080 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,271 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,271 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,961 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,853 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,303 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,082 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,735 |
| One Border Countries | 0 | - | 4.98 | 472,256 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,893 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,817 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,643 |
| Asia Map Quiz | 0 | - | 4.99 | 925,882 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,727 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,850,911 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,498 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,656,418 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,405 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,370 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,739 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,948 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,300 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,679 |
| Countries by National Anthem | 0 | - | 4.92 | 71,422 |
| NATO Countries | 0 | - | 4.98 | 283,715 |
| EU Countries Quiz | 0 | - | 4.99 | 278,333 |
| Recently Independent Countries | 0 | - | 4.98 | 160,422 |
| French-Speaking Countries | 0 | - | 4.85 | 271,774 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,185 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,002 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,639 |
