| Landlocked Countries | 0 | - | 4.99 | 415,848 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,101,108 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,524 |
| Himalayan Countries | 0 | - | 4.95 | 136,161 |
| Andean Countries | 0 | - | 4.95 | 83,267 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,568 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,761 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,271 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,896 |
| Danube Countries | 0 | - | 4.97 | 71,314 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,082 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,767 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,978 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,935 |
| European Landlocked Countries | 0 | - | 4.99 | 146,022 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,629 |
| Countries with the Most Species | 0 | - | 4.99 | 95,378 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,758 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,291 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,459 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,100 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,748 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,125 |
| Countries in the Alps | 0 | - | 4.86 | 117,211 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,818 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,713 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,197 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,641 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,447 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,189 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,881 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,934 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,738 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,269 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,304 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,172 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,660 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,921 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,933 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,572 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,836 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,375 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,111 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,568 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,368 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,770 |
| Largest Countries By Category | 0 | - | 4.97 | 157,139 |
| Countries by Countries | 0 | - | 4.96 | 62,505 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,762 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,051 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,393 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,468 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,346 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,019 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,734,913 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,249 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,377 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,101 |
| Island Countries | 0 | - | 4.99 | 708,543 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,401 |
| Northernmost Countries | 0 | - | 4.99 | 358,975 |
| Countries of South America | 0 | - | 5.00 | 918,597 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,273 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,856,114 |
| "Land" Countries | 0 | - | 4.98 | 334,241 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,476 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,059 |
| Countries with Megacities | 0 | - | 4.99 | 248,526 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,942 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,434 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,320 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,378 |
| Countries by Official Language | 0 | - | 4.95 | 193,658 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,160 |
| Countries in their Native Language | 0 | - | 4.99 | 197,360 |
| Independence from Whom | 0 | - | 4.99 | 210,340 |
| Subdivisions by Country | 0 | - | 4.86 | 50,166 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,182 |
| Megadiverse Countries | 0 | - | 4.96 | 134,495 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,545 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,045 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,580 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,930 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,947 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,161 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,444 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,495 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,321 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,795 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,047 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,545 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,648 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,616 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,821 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,151 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,295 |
| World Map Quiz | 0 | - | 4.81 | 63,913 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,968 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,640 |
| Countries by Founding Story | 0 | - | 4.95 | 76,791 |
| Countries by Road Signs | 0 | - | 4.98 | 53,329 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,904 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,587 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,304 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,489 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,177 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,369 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,559 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,104 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,582 |
| Widest Countries East to West | 0 | - | 4.92 | 129,082 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,304 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,560 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,673 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,906 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,899 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,283 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,933 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,655 |
| Countries with Double Letters | 0 | - | 4.96 | 93,796 |
| Countries that End in N | 0 | - | 4.94 | 157,224 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,179 |
| Countries with Six Letters | 0 | - | 4.93 | 210,815 |
| Countries with W | 0 | - | 4.97 | 158,487 |
| Countries with Z | 0 | - | 4.98 | 288,374 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,840 |
| Countries That End in U | 0 | - | 4.95 | 119,653 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,977 |
| Countries that End in O | 0 | - | 4.92 | 158,690 |
| Countries that End in R | 0 | - | 4.87 | 118,401 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,957 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,528 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,622 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,704 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,269 |
| Countries That End in Y | 0 | - | 4.90 | 185,312 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,709 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,985 |
| Countries that End in I | 0 | - | 4.94 | 134,584 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,575 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,345 |
| Countries That End in NIA | 0 | - | 4.92 | 109,199 |
| Countries That End in BIA | 0 | - | 4.92 | 148,342 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,325 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,692 |
| Countries That End in RIA | 0 | - | 4.93 | 126,245 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,229 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,887 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,752 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,112 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,653 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,063 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,345 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,861 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,751 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,933 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,416 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,080 |
| Countries that End in L | 0 | - | 4.94 | 156,197 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,470 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,034 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,668 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,499 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,564 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,138 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,713 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,072 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,739 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,150 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,985 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,848 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,264 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,483 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,466 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,769 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,561 |
| One Border Countries | 0 | - | 4.98 | 466,027 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,946 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,810,440 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,599,990 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,214 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,715 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,229 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,948 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,021 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,570 |
| Countries by National Anthem | 0 | - | 4.93 | 71,094 |
| NATO Countries | 0 | - | 4.98 | 277,604 |
| EU Countries Quiz | 0 | - | 4.99 | 271,205 |
| Recently Independent Countries | 0 | - | 4.98 | 158,280 |
| French-Speaking Countries | 0 | - | 4.85 | 269,540 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,469 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,712 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,009 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,850 |
| German-Speaking Countries | 0 | - | 4.89 | 138,024 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,957 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,585 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,106 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,778 |
