| Independence from Whom | 0 | - | 4.99 | 187,618 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,642 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,526 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,846 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 330,028 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,391,479 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 145,502 |
| Countries of the World in 1900 | 0 | - | 4.87 | 67,539 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 172,190 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 129,513 |
| Countries by Former Name | 0 | - | 4.99 | 114,694 |
| Historical City to Country | 0 | - | 4.82 | 72,732 |
| Members of the Arab League | 0 | - | 4.85 | 64,645 |
| Sahara Desert Countries | 0 | - | 4.97 | 128,946 |
| Himalayan Countries | 0 | - | 4.95 | 106,892 |
| Andean Countries | 0 | - | 4.91 | 59,442 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,523 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,285 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,649 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,548 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,846 |
| Danube Countries | 0 | - | 4.96 | 56,996 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,013 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,115 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,062 |
| Countries with the Worst Passports | 0 | - | 4.88 | 49,954 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,237 |
| European Landlocked Countries | 0 | - | 4.99 | 136,498 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,369 |
| Countries with the Most Species | 0 | - | 4.99 | 89,707 |
| Countries 197 to 205 | 0 | - | 4.87 | 56,865 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,885 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,179 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,709 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,665 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,939 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,556 |
| Countries in the Alps | 0 | - | 4.84 | 103,327 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,941 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,412 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,969 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,026 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,495 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,996 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,156 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,500 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,535 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,095 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,847 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,817 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,866 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,204 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,360 |
| Countries with the Most Grassland | 0 | - | 4.94 | 69,928 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,437 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,683 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,753 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 199,549 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,178 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,587 |
| Largest Countries By Category | 0 | - | 4.97 | 145,765 |
| Countries by Countries | 0 | - | 4.96 | 55,161 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,126,513 |
| Country Flags with the Most White | 0 | - | 4.90 | 125,429 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,983 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,981 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,195,167 |
| Most Populous Countries by Year | 0 | - | 4.81 | 94,803 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 110,305 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 69,044 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,584 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,983 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 67,305 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 87,613 |
| Countries Settled by Vikings | 0 | - | 4.93 | 112,134 |
| Warsaw Pact Countries | 0 | - | 4.84 | 80,478 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 50,813 |
| Countries of Europe in 1444 | 0 | - | 4.93 | 87,920 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 343,100 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 359,335 |
| Island Countries Quiz | 0 | - | 4.99 | 665,006 |
| Biggest Countries by Area | 0 | - | 5.00 | 940,678 |
| Northernmost Countries | 0 | - | 4.99 | 329,402 |
| Countries of South America | 0 | - | 5.00 | 802,689 |
| Countries of Oceania | 0 | - | 5.00 | 904,667 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,593,802 |
| Former Countries by Capital | 0 | - | 4.44 | 104,271 |
| Former Countries | 0 | - | 4.72 | 125,180 |
| Guerrillas by Country | 0 | - | 4.45 | 38,735 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,678 |
| Countries with Megacities | 0 | - | 4.99 | 199,907 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,477 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,029 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 97,056 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 65,009 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,688 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 162,859 |
| Countries by Official Language | 0 | - | 4.96 | 174,218 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,341 |
| Countries in their Native Language | 0 | - | 4.98 | 179,438 |
| Subdivisions by Country | 0 | - | 4.82 | 46,702 |
| Megadiverse Countries | 0 | - | 4.96 | 126,188 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,543 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,153 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,642 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,389 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,698 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,403 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,681 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,494 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,963 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,601 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,156 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,043 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,665 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 84,488 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 69,640 |
| Battle to Country | 0 | - | 4.92 | 36,222 |
| World Map Quiz | 0 | - | 4.91 | 50,490 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 116,187 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 82,185 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,584 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,941 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,182 |
| Countries With the Most Languages | 0 | - | 4.91 | 175,838 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,083 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 72,462 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,534 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,593 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,074 |
| Widest Countries East to West | 0 | - | 4.93 | 120,034 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,001 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,852 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,006 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,167 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,051 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,770 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,640 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,256 |
| Countries with Double Letters | 0 | - | 4.96 | 70,045 |
| Countries that End in N | 0 | - | 4.94 | 134,255 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 231,621 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 188,987 |
| Countries with W | 0 | - | 4.96 | 124,205 |
| Countries with Z | 0 | - | 4.98 | 246,287 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,447 |
| Countries That End in U | 0 | - | 4.95 | 108,341 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 90,855 |
| Countries that End in O | 0 | - | 4.92 | 147,591 |
| Countries that End in R | 0 | - | 4.84 | 96,860 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,672 |
| Countries Ending in "IA" | 0 | - | 4.99 | 172,760 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 156,958 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,140 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,079 |
| Countries That End in Y | 0 | - | 4.90 | 162,016 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,104 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 121,597 |
| Countries that End in I | 0 | - | 4.92 | 114,871 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,643 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,972 |
| Countries That End in NIA | 0 | - | 4.93 | 101,389 |
| Countries That End in BIA | 0 | - | 4.91 | 126,768 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,310 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 110,415 |
| Countries That End in RIA | 0 | - | 4.90 | 101,497 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,142 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 203,022 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 120,772 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 111,814 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,437 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,242 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 97,483 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,303 |
| Countries with the Word "And" | 0 | - | 4.98 | 84,329 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,670 |
| Countries that End in L | 0 | - | 4.95 | 135,274 |
| "Land" Countries | 0 | - | 4.98 | 291,305 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,462 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,306 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,868 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,683 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 72,174 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 209,837 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 168,918 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,231 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 134,076 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 195,277 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,672 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,286 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 102,822 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,858 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,979 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,320,736 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,519 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,093,650 |
| One Border Countries | 0 | - | 4.98 | 412,848 |
| Countries Unconquered since 1850 | 0 | - | 4.38 | 62,539 |
| Longest Uninterrupted Democracies | 0 | - | 4.07 | 31,778 |
| Most Recent Country To ... | 0 | - | 4.34 | 51,980 |
