| Spanish-Speaking Countries | 0 | - | 4.95 | 375,965 |
| Countries by Official Language | 0 | - | 4.95 | 195,542 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,801 |
| Countries in their Native Language | 0 | - | 4.99 | 199,324 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,344 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,552 |
| French-Speaking Countries | 0 | - | 4.85 | 271,194 |
| German-Speaking Countries | 0 | - | 4.92 | 145,871 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,570 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,697,119 |
| Landlocked Countries | 0 | - | 4.99 | 423,384 |
| English Speaking Countries | 0 | - | 4.64 | 357,854 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,788,818 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,169 |
| Himalayan Countries | 0 | - | 4.94 | 139,364 |
| Andean Countries | 0 | - | 4.94 | 84,951 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,170 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,335 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,737 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,053 |
| Danube Countries | 0 | - | 4.97 | 72,169 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,249 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,571 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,615 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,121 |
| European Landlocked Countries | 0 | - | 4.99 | 147,323 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,900 |
| Countries with the Most Species | 0 | - | 4.99 | 103,382 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,036 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,661 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,777 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,649 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,404 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,809 |
| Countries in the Alps | 0 | - | 4.87 | 118,429 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,919 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,363 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,784 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,766 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,675 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,069 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,864 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,638 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,271 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,991 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,741 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,612 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,355 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,603 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,677 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,261 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,435 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,996 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,297 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,717 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,529 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,342 |
| Largest Countries By Category | 0 | - | 4.97 | 158,474 |
| Countries by Countries | 0 | - | 4.96 | 63,398 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,931 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,335 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,603 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,171 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,836 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,807 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,858 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,258 |
| Island Countries | 0 | - | 4.99 | 711,580 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,766 |
| Northernmost Countries | 0 | - | 4.99 | 362,732 |
| Countries of South America | 0 | - | 5.00 | 929,389 |
| Countries of Oceania | 0 | - | 5.00 | 1,059,451 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,881,881 |
| "Land" Countries | 0 | - | 4.98 | 337,740 |
| Top World Languages | 0 | - | 4.92 | 826,531 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,950 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,387,398 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,338 |
| Countries with Megacities | 0 | - | 4.99 | 265,591 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,134 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,698 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,395 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,772 |
| Independence from Whom | 0 | - | 4.99 | 212,441 |
| Subdivisions by Country | 0 | - | 4.87 | 50,506 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,986 |
| Megadiverse Countries | 0 | - | 4.96 | 135,124 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,437 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,319 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,152 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,321 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,675 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,665 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,443 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,727 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,195 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,993 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,984 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,298 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,036 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,457 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,578 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,678 |
| World Map Quiz | 0 | - | 4.81 | 65,304 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,013 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,497 |
| Countries by Founding Story | 0 | - | 4.95 | 77,492 |
| Countries by Road Signs | 0 | - | 4.98 | 54,160 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,416 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,501 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,191 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,749 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 111,087 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,203 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,451 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,525 |
| Tallest Countries North to South | 0 | - | 4.83 | 122,923 |
| Widest Countries East to West | 0 | - | 4.92 | 129,873 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,494 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,944 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,411 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,875 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,757 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,022 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,428 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,832 |
| Countries with Double Letters | 0 | - | 4.96 | 96,570 |
| Countries that End in N | 0 | - | 4.95 | 171,470 |
| Countries with Five Letters | 0 | - | 4.96 | 283,052 |
| Countries with Six Letters | 0 | - | 4.94 | 213,916 |
| Countries with W | 0 | - | 4.96 | 160,569 |
| Countries with Z | 0 | - | 4.98 | 291,839 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,940 |
| Countries That End in U | 0 | - | 4.95 | 120,980 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,718 |
| Countries that End in O | 0 | - | 4.92 | 159,635 |
| Countries that End in R | 0 | - | 4.87 | 119,052 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,809 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,391 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,869 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,618 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,523 |
| Countries That End in Y | 0 | - | 4.91 | 185,966 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,128 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,025 |
| Countries that End in I | 0 | - | 4.94 | 135,192 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,303 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,905 |
| Countries That End in NIA | 0 | - | 4.92 | 109,874 |
| Countries That End in BIA | 0 | - | 4.93 | 149,351 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,280 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,565 |
| Countries That End in RIA | 0 | - | 4.93 | 126,914 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,161 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,974 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,905 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,332 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,882 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,660 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,152 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,478 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,665 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,524 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,456 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,156 |
| Countries that End in L | 0 | - | 4.94 | 156,961 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,467 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,300 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,126 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,050 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,100 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,019 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,865 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,265 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,010 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,660 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,012 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,156 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,747 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,079 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,835 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,547 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,530 |
| One Border Countries | 0 | - | 4.98 | 470,703 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,840,331 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,640,273 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,098 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,074 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,518 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,361 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,692 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,911 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,363 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,568 |
| Countries by National Anthem | 0 | - | 4.93 | 71,345 |
| NATO Countries | 0 | - | 4.98 | 282,244 |
| EU Countries Quiz | 0 | - | 4.99 | 276,408 |
| Recently Independent Countries | 0 | - | 4.98 | 159,659 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,959 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,071 |
