| Countries with Wild Penguins | 0 | - | 4.94 | 99,387 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,494 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,507 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,497 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,597 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,143 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,516 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,994,820 |
| Landlocked Countries | 0 | - | 4.99 | 414,506 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,669 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,645 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,800 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,724,254 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,968 |
| Himalayan Countries | 0 | - | 4.95 | 135,677 |
| Andean Countries | 0 | - | 4.94 | 83,015 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,365 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,418 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,062 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,728 |
| Danube Countries | 0 | - | 4.97 | 71,171 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,887 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,632 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,690 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,589 |
| European Landlocked Countries | 0 | - | 4.99 | 145,873 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,353 |
| Countries with the Most Species | 0 | - | 4.99 | 95,297 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,506 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,233 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,403 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,010 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,651 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,019 |
| Countries in the Alps | 0 | - | 4.86 | 116,972 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,676 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,438 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,101 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,507 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,287 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,081 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,687 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,834 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,579 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,144 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,229 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,095 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,527 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,823 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,825 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,272 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,731 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,305 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,927 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,798 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,974 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,681 |
| Largest Countries By Category | 0 | - | 4.97 | 156,904 |
| Countries by Countries | 0 | - | 4.96 | 62,352 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,540 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,996 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,356 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,205 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,850 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,071 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,458 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,292 |
| Island Countries | 0 | - | 4.99 | 707,972 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,510 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,698 |
| Northernmost Countries | 0 | - | 4.99 | 358,228 |
| Countries of South America | 0 | - | 5.00 | 916,324 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,523 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,589 |
| "Land" Countries | 0 | - | 4.98 | 333,902 |
| Countries with More Cows than People | 0 | - | 4.43 | 56,988 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,922 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,027 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,260 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,682 |
| Countries with Megacities | 0 | - | 4.99 | 247,694 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,532 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,226 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,923 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,164 |
| Countries by Official Language | 0 | - | 4.95 | 192,963 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,408 |
| Countries in their Native Language | 0 | - | 4.99 | 196,817 |
| Independence from Whom | 0 | - | 4.99 | 209,931 |
| Subdivisions by Country | 0 | - | 4.86 | 50,110 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,918 |
| Megadiverse Countries | 0 | - | 4.97 | 133,969 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,987 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,962 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,477 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,883 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,779 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,065 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,204 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,224 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,256 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,767 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,757 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,459 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,564 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,549 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,739 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,073 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,859 |
| World Map Quiz | 0 | - | 4.81 | 63,669 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,195 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,427 |
| Countries by Founding Story | 0 | - | 4.95 | 76,629 |
| Countries by Road Signs | 0 | - | 4.98 | 53,205 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,586 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,368 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,108 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,062 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,006 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,200 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,401 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,016 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,450 |
| Widest Countries East to West | 0 | - | 4.92 | 128,951 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,258 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,359 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,611 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,773 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,716 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,146 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 73,727 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,622 |
| Countries with Double Letters | 0 | - | 4.96 | 93,566 |
| Countries that End in N | 0 | - | 4.94 | 157,048 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,881 |
| Countries with Six Letters | 0 | - | 4.93 | 210,550 |
| Countries with W | 0 | - | 4.97 | 158,347 |
| Countries with Z | 0 | - | 4.98 | 288,076 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,669 |
| Countries That End in U | 0 | - | 4.95 | 119,585 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,764 |
| Countries that End in O | 0 | - | 4.92 | 158,615 |
| Countries that End in R | 0 | - | 4.87 | 118,334 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,901 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,277 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,460 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,585 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,126 |
| Countries That End in Y | 0 | - | 4.90 | 185,253 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,513 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,803 |
| Countries that End in I | 0 | - | 4.94 | 134,493 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,342 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,252 |
| Countries That End in NIA | 0 | - | 4.92 | 109,072 |
| Countries That End in BIA | 0 | - | 4.92 | 147,791 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,176 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,579 |
| Countries That End in RIA | 0 | - | 4.93 | 126,147 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,104 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,542 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,610 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,975 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,466 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,976 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,208 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,731 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,608 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,855 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,248 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,917 |
| Countries that End in L | 0 | - | 4.94 | 156,103 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,728 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,007 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,572 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,369 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,481 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,688 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,473 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 140,221 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,519 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,872 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,825 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,768 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,214 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,444 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,376 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,636 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,029 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,723 |
| One Border Countries | 0 | - | 4.98 | 465,016 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,804,731 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,592,530 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,700 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,053 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,318 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,058 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,572 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,843 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,433 |
