| Landlocked Countries | 0 | - | 4.99 | 414,196 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,966,399 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,029 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 112,429 |
| Top 10 European Countries with the Highest Elevation | 0 | - | 4.83 | 90,871 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,819 |
| Himalayan Countries | 0 | - | 4.95 | 135,545 |
| Andean Countries | 0 | - | 4.94 | 82,938 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,301 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,338 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,002 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,675 |
| Danube Countries | 0 | - | 4.97 | 71,129 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,834 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,596 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,603 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,515 |
| European Landlocked Countries | 0 | - | 4.99 | 145,828 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,295 |
| Countries with the Most Species | 0 | - | 4.99 | 95,278 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,436 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,216 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,386 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,988 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,616 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,996 |
| Countries in the Alps | 0 | - | 4.86 | 116,919 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,635 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,361 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,058 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,470 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,241 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,053 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,654 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,809 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,504 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,113 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,214 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,074 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,492 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,801 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,791 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,185 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,701 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,287 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,852 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,596 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,866 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,637 |
| Largest Countries By Category | 0 | - | 4.97 | 156,855 |
| Countries by Countries | 0 | - | 4.96 | 62,317 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,498 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,981 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,347 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,825 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,721,650 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,721 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,342 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,148 |
| Island Countries | 0 | - | 4.99 | 707,834 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,249 |
| Northernmost Countries | 0 | - | 4.99 | 358,027 |
| Countries of South America | 0 | - | 5.00 | 915,800 |
| Countries of Oceania | 0 | - | 5.00 | 1,041,815 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,850,380 |
| "Land" Countries | 0 | - | 4.98 | 333,800 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,363,959 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,569 |
| Countries with Megacities | 0 | - | 4.99 | 247,463 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,413 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,169 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,820 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,084 |
| Countries by Official Language | 0 | - | 4.95 | 192,899 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,301 |
| Countries in their Native Language | 0 | - | 4.99 | 196,751 |
| Independence from Whom | 0 | - | 4.99 | 209,846 |
| Subdivisions by Country | 0 | - | 4.86 | 50,096 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,868 |
| Megadiverse Countries | 0 | - | 4.97 | 133,952 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,925 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,947 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,458 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,872 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,737 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,041 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,156 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,204 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,242 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,757 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,710 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,449 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,537 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,530 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,720 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,050 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,744 |
| World Map Quiz | 0 | - | 4.81 | 63,618 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,013 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,398 |
| Countries by Founding Story | 0 | - | 4.95 | 76,600 |
| Countries by Road Signs | 0 | - | 4.98 | 53,166 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,474 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,231 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,007 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,931 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,924 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,116 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,331 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,979 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,376 |
| Widest Countries East to West | 0 | - | 4.92 | 128,662 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,224 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,301 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,594 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,730 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,682 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,107 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,064 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,600 |
| Countries with Double Letters | 0 | - | 4.96 | 93,487 |
| Countries that End in N | 0 | - | 4.94 | 156,976 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,794 |
| Countries with Six Letters | 0 | - | 4.93 | 210,458 |
| Countries with W | 0 | - | 4.97 | 158,297 |
| Countries with Z | 0 | - | 4.98 | 288,003 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,619 |
| Countries That End in U | 0 | - | 4.95 | 119,549 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,686 |
| Countries that End in O | 0 | - | 4.92 | 158,590 |
| Countries that End in R | 0 | - | 4.87 | 118,304 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,880 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,198 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,414 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,552 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,090 |
| Countries That End in Y | 0 | - | 4.90 | 185,235 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,471 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,768 |
| Countries that End in I | 0 | - | 4.94 | 134,467 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,296 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,236 |
| Countries That End in NIA | 0 | - | 4.92 | 109,053 |
| Countries That End in BIA | 0 | - | 4.92 | 147,764 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,139 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,543 |
| Countries That End in RIA | 0 | - | 4.93 | 126,125 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,068 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,299 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,559 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,939 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,432 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,959 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,178 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,704 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,568 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,839 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,215 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,876 |
| Countries that End in L | 0 | - | 4.94 | 155,794 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,562 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,998 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,555 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,348 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,464 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,523 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,353 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 137,383 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,430 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,731 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,744 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,725 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,185 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,436 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,355 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,064 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,898 |
| One Border Countries | 0 | - | 4.98 | 464,819 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,685 |
| Countries with the Highest Elevation with Exceptions | 0 | - | 4.70 | 59,459 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,803,586 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,590,847 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,978 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,222 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,001 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,548 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,771 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,384 |
| Countries by National Anthem | 0 | - | 4.93 | 71,045 |
| NATO Countries | 0 | - | 4.98 | 276,236 |
| EU Countries Quiz | 0 | - | 4.99 | 270,269 |
| Recently Independent Countries | 0 | - | 4.98 | 158,063 |
| French-Speaking Countries | 0 | - | 4.85 | 268,975 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,401 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,193 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,217 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,728 |
| German-Speaking Countries | 0 | - | 4.89 | 123,540 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,654 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,342 |
