| Inventions by Country #1 | 0 | - | 4.47 | 55,204 |
| Independence from Whom | 0 | - | 4.99 | 213,455 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,703 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,935 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,312 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,644 |
| Recently Independent Countries | 0 | - | 4.98 | 160,533 |
| Countries of the World in 1900 | 0 | - | 4.89 | 86,203 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 197,129 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,530 |
| Countries by Former Name | 0 | - | 4.99 | 125,997 |
| Historical City to Country | 0 | - | 4.85 | 79,107 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,983,898 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 338,295 |
| Landlocked Countries | 0 | - | 4.99 | 427,423 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,346 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,648 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,031 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,627 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,293 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,578 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,934 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,883 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,197 |
| Countries by Emojis | 0 | - | 4.99 | 242,898 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,731 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,728 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,785 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,355 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,672 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,481 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,813,731 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,386 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,998 |
| Himalayan Countries | 0 | - | 4.93 | 140,899 |
| Andean Countries | 0 | - | 4.94 | 85,837 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,956 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,539 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,493 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,713 |
| Danube Countries | 0 | - | 4.97 | 72,576 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,828 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,994 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,478 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,952 |
| European Landlocked Countries | 0 | - | 4.99 | 147,796 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,563 |
| Countries with the Most Species | 0 | - | 4.99 | 103,656 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,666 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,820 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,962 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,935 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,690 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,147 |
| Countries in the Alps | 0 | - | 4.87 | 119,006 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,051 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,189 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,075 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,191 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,151 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,406 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,616 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,012 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,521 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,326 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,965 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,835 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,686 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,941 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,042 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,179 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,749 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,316 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,787 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,592 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,861 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,414 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,548 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,628 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 111,223 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 90,035 |
| Largest Countries By Category | 0 | - | 4.97 | 159,124 |
| Countries by Countries | 0 | - | 4.97 | 63,822 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,722 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,905 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,625 |
| Battle to Country | 0 | - | 4.91 | 54,130 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,478 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,452 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,249 |
| Mountains by Country | 0 | - | 4.56 | 82,040 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,787 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,094 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,470 |
| Island Countries | 0 | - | 4.99 | 713,072 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,397,658 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,389 |
| Northernmost Countries | 0 | - | 4.99 | 364,685 |
| Countries of South America | 0 | - | 5.00 | 934,539 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,816 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,673 |
| "Land" Countries | 0 | - | 4.98 | 339,073 |
| Countries by Independence Day | 0 | - | 4.62 | 52,882 |
| Former Countries by Capital | 0 | - | 4.45 | 127,905 |
| Former Countries | 0 | - | 4.77 | 134,331 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,134 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 131,913 |
| Companies by Country | 0 | - | 4.61 | 120,544 |
| Airlines by Country | 0 | - | 4.52 | 135,952 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,439 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,970 |
| Name a Valid African Country | 0 | - | 4.98 | 155,293 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,347 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,049 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,557 |
| Countries with Megacities | 0 | - | 4.99 | 267,976 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,204 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,365 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,530 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,471 |
| Countries by Official Language | 0 | - | 4.95 | 196,264 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,003 |
| Countries in their Native Language | 0 | - | 4.99 | 199,982 |
| Subdivisions by Country | 0 | - | 4.87 | 50,674 |
| Megadiverse Countries | 0 | - | 4.96 | 149,464 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,166 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,588 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,823 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,265 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,506 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,639 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,181 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,291 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,827 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,503 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,518 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,229 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,652 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,986 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,793 |
| World Map Quiz | 0 | - | 4.81 | 65,947 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,833 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,561 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,255 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,728 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,988 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,578 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,690 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,872 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,773 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,970 |
| Widest Countries East to West | 0 | - | 4.92 | 130,879 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,634 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,428 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,573 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,174 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,137 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,628 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,543 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,928 |
| Athletes by Country Quiz #1 | 0 | - | 4.36 | 45,466 |
| Political Movements by Country | 0 | - | 4.46 | 72,840 |
| Countries with Double Letters | 0 | - | 4.96 | 97,690 |
| Countries that End in N | 0 | - | 4.95 | 172,695 |
| Countries with Five Letters | 0 | - | 4.96 | 284,728 |
| Countries with Six Letters | 0 | - | 4.94 | 215,022 |
| Countries with W | 0 | - | 4.96 | 161,360 |
| Countries with Z | 0 | - | 4.98 | 293,090 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,730 |
| Countries That End in U | 0 | - | 4.95 | 121,420 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,479 |
| Countries that End in O | 0 | - | 4.92 | 160,394 |
| Countries that End in R | 0 | - | 4.87 | 119,299 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,073 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,198 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 186,909 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,253 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,901 |
| Countries That End in Y | 0 | - | 4.91 | 186,190 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,418 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,452 |
| Countries that End in I | 0 | - | 4.94 | 135,440 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,370 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,157 |
| Countries That End in NIA | 0 | - | 4.92 | 110,173 |
| Countries That End in BIA | 0 | - | 4.93 | 149,764 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,961 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,923 |
| Countries That End in RIA | 0 | - | 4.93 | 127,171 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,564 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,000 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,424 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,886 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,448 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,936 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,478 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,616 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,079 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,753 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,648 |
