| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,591 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,109,125 |
| Landlocked Countries | 0 | - | 4.99 | 415,947 |
| Countries with Glaciers | 0 | - | 4.97 | 104,809 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,827 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,374 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,735,611 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,576 |
| Himalayan Countries | 0 | - | 4.95 | 136,204 |
| Andean Countries | 0 | - | 4.95 | 83,293 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,588 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,795 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,283 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,908 |
| Danube Countries | 0 | - | 4.97 | 71,327 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,097 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,782 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,998 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,957 |
| European Landlocked Countries | 0 | - | 4.99 | 146,035 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,647 |
| Countries with the Most Species | 0 | - | 4.99 | 96,002 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,783 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,292 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,470 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,108 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,753 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,127 |
| Countries in the Alps | 0 | - | 4.86 | 117,239 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,827 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,732 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,204 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,655 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,482 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,197 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,891 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,946 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,740 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,274 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,315 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,176 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,669 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,931 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,940 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,590 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,842 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,378 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,117 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,628 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,399 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,777 |
| Largest Countries By Category | 0 | - | 4.97 | 157,159 |
| Countries by Countries | 0 | - | 4.96 | 62,519 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,773 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,059 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,395 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,027 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 79,815 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,347 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,499 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,176 |
| Island Countries | 0 | - | 4.99 | 708,573 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,734 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,535 |
| Northernmost Countries | 0 | - | 4.99 | 359,029 |
| Countries of South America | 0 | - | 5.00 | 918,719 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,518 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,856,380 |
| "Land" Countries | 0 | - | 4.98 | 334,267 |
| Elements Named for Countries | 0 | - | 4.52 | 24,523 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,613 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,099 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,922 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,691 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 118,574 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,943 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,597 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,095 |
| Countries with Megacities | 0 | - | 4.99 | 248,588 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,973 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,453 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,344 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,401 |
| Countries by Official Language | 0 | - | 4.95 | 193,761 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,256 |
| Countries in their Native Language | 0 | - | 4.99 | 197,418 |
| Independence from Whom | 0 | - | 4.99 | 210,382 |
| Subdivisions by Country | 0 | - | 4.86 | 50,168 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,209 |
| Megadiverse Countries | 0 | - | 4.96 | 134,496 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,627 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,052 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,585 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,931 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,994 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,174 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,464 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,502 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,328 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,795 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,060 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,552 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,649 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,621 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,825 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,161 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,328 |
| World Map Quiz | 0 | - | 4.81 | 63,930 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,010 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,645 |
| Countries by Founding Story | 0 | - | 4.95 | 76,809 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,930 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,599 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,316 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,518 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,185 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,381 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,566 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,107 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,588 |
| Widest Countries East to West | 0 | - | 4.92 | 129,087 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,305 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,568 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,689 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,914 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,913 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,295 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,961 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,656 |
| Countries with Double Letters | 0 | - | 4.96 | 93,815 |
| Countries that End in N | 0 | - | 4.94 | 157,244 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,199 |
| Countries with Six Letters | 0 | - | 4.93 | 210,839 |
| Countries with W | 0 | - | 4.97 | 158,502 |
| Countries with Z | 0 | - | 4.98 | 288,394 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,852 |
| Countries That End in U | 0 | - | 4.95 | 119,663 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,993 |
| Countries that End in O | 0 | - | 4.92 | 158,693 |
| Countries that End in R | 0 | - | 4.87 | 118,411 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,966 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,552 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,624 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,716 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,277 |
| Countries That End in Y | 0 | - | 4.90 | 185,318 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,724 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,996 |
| Countries that End in I | 0 | - | 4.94 | 134,593 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,586 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,353 |
| Countries That End in NIA | 0 | - | 4.92 | 109,216 |
| Countries That End in BIA | 0 | - | 4.93 | 148,452 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,332 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,700 |
| Countries That End in RIA | 0 | - | 4.93 | 126,256 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,237 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,909 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,760 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,122 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,663 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,070 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,349 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,874 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,757 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,939 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,425 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,092 |
| Countries that End in L | 0 | - | 4.94 | 156,206 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,522 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,036 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,673 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,505 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,568 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,166 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,725 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,108 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,746 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,167 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,991 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,849 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,272 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,486 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,470 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,810,788 |
| One Border Countries | 0 | - | 4.98 | 466,081 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,600,709 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,371 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,039 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,450 |
| Country Picture Puzzle Game #1 | 0 | - | 4.86 | 85,931 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,448 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,651 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,350 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,222 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,746 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,240 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,029 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,030 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,576 |
