| Spanish-Speaking Countries | 0 | - | 4.95 | 376,368 |
| Countries by Official Language | 0 | - | 4.95 | 195,809 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,357 |
| Countries in their Native Language | 0 | - | 4.99 | 199,590 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,791 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,649 |
| Landlocked Countries | 0 | - | 4.99 | 424,693 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,795,816 |
| French-Speaking Countries | 0 | - | 4.85 | 271,479 |
| German-Speaking Countries | 0 | - | 4.92 | 145,956 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,742 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,715 |
| Himalayan Countries | 0 | - | 4.93 | 139,834 |
| Andean Countries | 0 | - | 4.94 | 85,215 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,393 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,695 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,956 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,260 |
| Danube Countries | 0 | - | 4.97 | 72,289 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,437 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,726 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,892 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,392 |
| European Landlocked Countries | 0 | - | 4.99 | 147,476 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,116 |
| Countries with the Most Species | 0 | - | 4.99 | 103,503 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,265 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,717 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,828 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,762 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,495 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,917 |
| Countries in the Alps | 0 | - | 4.87 | 118,617 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,373 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,637 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,888 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,914 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,839 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,149 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,277 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,782 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,350 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,082 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,802 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,671 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,465 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,704 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,791 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,561 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,532 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,586 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,513 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,273 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,888 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,441 |
| Largest Countries By Category | 0 | - | 4.97 | 158,687 |
| Countries by Countries | 0 | - | 4.96 | 63,529 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,133 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,368 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,645 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,292 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,999 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,797,443 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,868 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,586 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,081 |
| Island Countries | 0 | - | 4.99 | 712,144 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,496 |
| Northernmost Countries | 0 | - | 4.99 | 363,493 |
| Countries of South America | 0 | - | 5.00 | 931,194 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,519 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,885,944 |
| "Land" Countries | 0 | - | 4.98 | 338,106 |
| Top World Languages | 0 | - | 4.92 | 828,431 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 128,049 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,391,136 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,863 |
| Countries with Megacities | 0 | - | 4.99 | 266,530 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,572 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,953 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,864 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,060 |
| Independence from Whom | 0 | - | 4.99 | 212,820 |
| Subdivisions by Country | 0 | - | 4.87 | 50,573 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,269 |
| Megadiverse Countries | 0 | - | 4.96 | 135,207 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,488 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,393 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,195 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,470 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,779 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,965 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,519 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,783 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,228 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,278 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,323 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,384 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,111 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,523 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,644 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,086 |
| World Map Quiz | 0 | - | 4.81 | 65,493 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,717 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,604 |
| Countries by Founding Story | 0 | - | 4.95 | 77,701 |
| Countries by Road Signs | 0 | - | 4.98 | 54,269 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,038 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,972 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,455 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,291 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,308 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,430 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,627 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,630 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,301 |
| Widest Countries East to West | 0 | - | 4.92 | 130,347 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,570 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,133 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,477 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,994 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,885 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,384 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,468 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,870 |
| Countries with Double Letters | 0 | - | 4.96 | 96,847 |
| Countries that End in N | 0 | - | 4.95 | 171,728 |
| Countries with Five Letters | 0 | - | 4.96 | 283,461 |
| Countries with Six Letters | 0 | - | 4.94 | 214,206 |
| Countries with W | 0 | - | 4.96 | 160,782 |
| Countries with Z | 0 | - | 4.98 | 292,183 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,129 |
| Countries That End in U | 0 | - | 4.95 | 121,088 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,939 |
| Countries that End in O | 0 | - | 4.92 | 159,737 |
| Countries that End in R | 0 | - | 4.87 | 119,124 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,878 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,630 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,024 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,737 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,658 |
| Countries That End in Y | 0 | - | 4.91 | 186,038 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,327 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,163 |
| Countries that End in I | 0 | - | 4.94 | 135,260 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,493 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,990 |
| Countries That End in NIA | 0 | - | 4.92 | 109,978 |
| Countries That End in BIA | 0 | - | 4.93 | 149,497 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,414 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,686 |
| Countries That End in RIA | 0 | - | 4.93 | 126,999 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,285 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,347 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,059 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,493 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,059 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,755 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,247 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,516 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,801 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,593 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,608 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,290 |
| Countries that End in L | 0 | - | 4.94 | 157,051 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 217,280 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,322 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,044 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,674 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,316 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,265 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,031 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,364 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,164 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,856 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,136 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,207 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,796 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,172 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,142 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,588 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,092 |
| One Border Countries | 0 | - | 4.98 | 471,426 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,174 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,844,942 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,647,923 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,230 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,827 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,542 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,821 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,109 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,506 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,649 |
| Countries by National Anthem | 0 | - | 4.92 | 71,386 |
| NATO Countries | 0 | - | 4.98 | 282,945 |
| EU Countries Quiz | 0 | - | 4.99 | 277,243 |
| Recently Independent Countries | 0 | - | 4.98 | 159,845 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,012 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,473 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 290,852 |
