| Landlocked Countries | 0 | - | 4.99 | 419,992 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,422,163 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,608 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 112,911 |
| Top 10 European Countries with the Highest Elevation | 0 | - | 4.83 | 91,189 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,472 |
| Himalayan Countries | 0 | - | 4.95 | 137,894 |
| Andean Countries | 0 | - | 4.95 | 84,158 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,375 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,948 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,028 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,477 |
| Danube Countries | 0 | - | 4.97 | 71,771 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,709 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,167 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,861 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,943 |
| European Landlocked Countries | 0 | - | 4.99 | 146,904 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,294 |
| Countries with the Most Species | 0 | - | 4.99 | 103,040 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,444 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,469 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,638 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,401 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,080 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,470 |
| Countries in the Alps | 0 | - | 4.87 | 117,883 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 97,188 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,605 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,506 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,389 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,243 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,801 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,405 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,283 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,044 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,655 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,545 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,388 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,017 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,308 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,311 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,439 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,139 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,643 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,712 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,935 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,527 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,065 |
| Largest Countries By Category | 0 | - | 4.97 | 157,845 |
| Countries by Countries | 0 | - | 4.97 | 62,954 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,384 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,190 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,498 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,450 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,764,340 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,922 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,911 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,956 |
| Island Countries | 0 | - | 4.99 | 710,203 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,047,314 |
| Northernmost Countries | 0 | - | 4.99 | 361,014 |
| Countries of South America | 0 | - | 5.00 | 924,443 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,283 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,870,331 |
| "Land" Countries | 0 | - | 4.98 | 336,077 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,378,388 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,344 |
| Countries with Megacities | 0 | - | 4.99 | 262,884 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,183 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,166 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,481 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,211 |
| Countries by Official Language | 0 | - | 4.95 | 194,851 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,821 |
| Countries in their Native Language | 0 | - | 4.99 | 198,392 |
| Independence from Whom | 0 | - | 4.99 | 211,606 |
| Subdivisions by Country | 0 | - | 4.86 | 50,339 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,906 |
| Megadiverse Countries | 0 | - | 4.96 | 134,846 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,726 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,235 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,811 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,049 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,852 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,454 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,142 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,908 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,542 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,029 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,260 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,775 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,060 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,843 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,227 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,394 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,525 |
| World Map Quiz | 0 | - | 4.81 | 64,792 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,170 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,153 |
| Countries by Founding Story | 0 | - | 4.95 | 77,168 |
| Countries by Road Signs | 0 | - | 4.98 | 53,763 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,705 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,052 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,773 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,657 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,656 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,793 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,930 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,335 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,397 |
| Widest Countries East to West | 0 | - | 4.92 | 129,459 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,410 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,109 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,042 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,604 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,358 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,661 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,291 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,752 |
| Countries with Double Letters | 0 | - | 4.97 | 95,310 |
| Countries that End in N | 0 | - | 4.95 | 170,334 |
| Countries with Five Letters | 0 | - | 4.96 | 281,148 |
| Countries with Six Letters | 0 | - | 4.94 | 212,750 |
| Countries with W | 0 | - | 4.97 | 159,671 |
| Countries with Z | 0 | - | 4.98 | 290,548 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,932 |
| Countries That End in U | 0 | - | 4.95 | 120,497 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,940 |
| Countries that End in O | 0 | - | 4.92 | 159,270 |
| Countries that End in R | 0 | - | 4.87 | 118,794 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,560 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,548 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,286 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,195 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,793 |
| Countries That End in Y | 0 | - | 4.91 | 185,700 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,474 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,564 |
| Countries that End in I | 0 | - | 4.94 | 134,930 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,672 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,644 |
| Countries That End in NIA | 0 | - | 4.92 | 109,597 |
| Countries That End in BIA | 0 | - | 4.93 | 148,952 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,855 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,177 |
| Countries That End in RIA | 0 | - | 4.93 | 126,613 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,747 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,001 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,374 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,759 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,297 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,397 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,767 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,346 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,256 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,264 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,948 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,676 |
| Countries that End in L | 0 | - | 4.94 | 156,627 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,601 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,181 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,900 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,803 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,858 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,998 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,338 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,762 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,272 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,774 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,669 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,002 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,632 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,743 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,018 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,164 |
| One Border Countries | 0 | - | 4.98 | 468,364 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,355 |
| Countries with the Highest Elevation with Exceptions | 0 | - | 4.70 | 59,602 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,827,082 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,620,826 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,674 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,675 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,835 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,362 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,498 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,044 |
| Countries by National Anthem | 0 | - | 4.92 | 71,218 |
| NATO Countries | 0 | - | 4.98 | 280,061 |
| EU Countries Quiz | 0 | - | 4.99 | 273,709 |
| Recently Independent Countries | 0 | - | 4.98 | 159,178 |
| French-Speaking Countries | 0 | - | 4.85 | 270,431 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,796 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,916 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,105 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 272,824 |
| German-Speaking Countries | 0 | - | 4.91 | 145,511 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,779 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,146 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,578 |
