| Spanish-Speaking Countries | 0 | - | 4.95 | 376,889 |
| Countries by Official Language | 0 | - | 4.95 | 196,132 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,801 |
| Countries in their Native Language | 0 | - | 4.99 | 199,851 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,050 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,728 |
| French-Speaking Countries | 0 | - | 4.85 | 271,785 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,954 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,927,651 |
| Landlocked Countries | 0 | - | 4.99 | 426,682 |
| English Speaking Countries | 0 | - | 4.64 | 358,359 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,808,556 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,631 |
| Himalayan Countries | 0 | - | 4.93 | 140,556 |
| Andean Countries | 0 | - | 4.94 | 85,661 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,794 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,278 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,350 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,579 |
| Danube Countries | 0 | - | 4.97 | 72,487 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,709 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,912 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,308 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,757 |
| European Landlocked Countries | 0 | - | 4.99 | 147,683 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,424 |
| Countries with the Most Species | 0 | - | 4.99 | 103,610 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,543 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,794 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,923 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,887 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,628 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,083 |
| Countries in the Alps | 0 | - | 4.87 | 118,877 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,830 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,021 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,020 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,108 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,053 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,337 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,482 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,931 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,477 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,254 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,926 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,796 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,623 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,861 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,960 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,029 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,669 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,801 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,766 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,001 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,335 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,568 |
| Largest Countries By Category | 0 | - | 4.97 | 158,973 |
| Countries by Countries | 0 | - | 4.97 | 63,727 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,350 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,427 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,690 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,218 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,485 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,169 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,971 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,075 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,046 |
| Island Countries | 0 | - | 4.99 | 712,790 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,503 |
| Northernmost Countries | 0 | - | 4.99 | 364,332 |
| Countries of South America | 0 | - | 5.00 | 933,529 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,532 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,236 |
| "Land" Countries | 0 | - | 4.98 | 338,635 |
| Top World Languages | 0 | - | 4.92 | 830,607 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 128,442 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,502 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,355 |
| Countries with Megacities | 0 | - | 4.99 | 267,518 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,009 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,247 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,342 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,349 |
| Independence from Whom | 0 | - | 4.99 | 213,252 |
| Subdivisions by Country | 0 | - | 4.87 | 50,643 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,572 |
| Megadiverse Countries | 0 | - | 4.96 | 146,247 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,559 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,759 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,241 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,368 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,894 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,198 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,598 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,130 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,275 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,664 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,443 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,472 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,183 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,610 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,924 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,558 |
| World Map Quiz | 0 | - | 4.81 | 65,850 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,589 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,767 |
| Countries by Founding Story | 0 | - | 4.95 | 77,868 |
| Countries by Road Signs | 0 | - | 4.98 | 54,398 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,398 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,166 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,632 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,754 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,494 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,614 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,800 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,737 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,865 |
| Widest Countries East to West | 0 | - | 4.92 | 130,783 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,619 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,319 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,539 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,110 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,053 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,551 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,519 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,910 |
| Countries with Double Letters | 0 | - | 4.96 | 97,307 |
| Countries that End in N | 0 | - | 4.95 | 172,392 |
| Countries with Five Letters | 0 | - | 4.96 | 284,296 |
| Countries with Six Letters | 0 | - | 4.94 | 214,696 |
| Countries with W | 0 | - | 4.96 | 161,110 |
| Countries with Z | 0 | - | 4.98 | 292,691 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,457 |
| Countries That End in U | 0 | - | 4.95 | 121,281 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,249 |
| Countries that End in O | 0 | - | 4.92 | 160,286 |
| Countries that End in R | 0 | - | 4.87 | 119,231 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,995 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,000 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 176,790 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,955 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,110 |
| Countries That End in Y | 0 | - | 4.91 | 186,125 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,754 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,343 |
| Countries that End in I | 0 | - | 4.94 | 135,370 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,859 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,103 |
| Countries That End in NIA | 0 | - | 4.92 | 110,109 |
| Countries That End in BIA | 0 | - | 4.93 | 149,664 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,845 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,829 |
| Countries That End in RIA | 0 | - | 4.93 | 127,102 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,466 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,779 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,278 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,742 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,294 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,857 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,382 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,565 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,980 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,683 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,819 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,513 |
| Countries that End in L | 0 | - | 4.94 | 157,190 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,293 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,365 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,650 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,074 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,502 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,552 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,231 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,479 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,350 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,092 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,277 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,272 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,961 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,856 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,308 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,497 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,140 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,750 |
| One Border Countries | 0 | - | 4.98 | 472,286 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,851,047 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,656,671 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,270 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,409 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,380 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,743 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,951 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,303 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,682 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,958 |
| Countries by National Anthem | 0 | - | 4.92 | 71,424 |
| NATO Countries | 0 | - | 4.98 | 283,729 |
| EU Countries Quiz | 0 | - | 4.99 | 278,401 |
| Recently Independent Countries | 0 | - | 4.98 | 160,432 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,189 |
