| Countries with Double Letters | 0 | - | 4.96 | 68,513 |
| Countries that End in N | 0 | - | 4.93 | 132,849 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,907 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 187,185 |
| Countries with W | 0 | - | 4.97 | 122,816 |
| Countries with Z | 0 | - | 4.98 | 244,579 |
| Countries with Letters Missing | 0 | - | 4.97 | 166,709 |
| Countries That End in U | 0 | - | 4.95 | 107,618 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,627 |
| Countries that End in O | 0 | - | 4.92 | 146,987 |
| Countries that End in R | 0 | - | 4.85 | 96,513 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,273 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,495 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,858 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,273 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,354 |
| Countries That End in Y | 0 | - | 4.90 | 161,670 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 161,096 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,830 |
| Countries that End in I | 0 | - | 4.92 | 114,525 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,628 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,327 |
| Countries That End in NIA | 0 | - | 4.93 | 100,894 |
| Countries That End in BIA | 0 | - | 4.91 | 126,150 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,323 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,814 |
| Countries That End in RIA | 0 | - | 4.90 | 101,026 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,515 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,957 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,791 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,687 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,486 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,301 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,796 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,872 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,827 |
| Countries that End in L | 0 | - | 4.95 | 134,341 |
| "Land" Countries | 0 | - | 4.98 | 289,317 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,945 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,189 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,880 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 324,154 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,965,403 |
| Countries with Four Letters | 0 | - | 4.99 | 375,658 |
| Members of the Arab League | 0 | - | 4.85 | 62,087 |
| Sahara Desert Countries | 0 | - | 4.97 | 127,041 |
| Himalayan Countries | 0 | - | 4.94 | 104,895 |
| Andean Countries | 0 | - | 4.91 | 58,162 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 59,132 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,388 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,738 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,057 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,318 |
| Danube Countries | 0 | - | 4.97 | 56,649 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,695 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,854 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,249 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,381 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,560 |
| European Landlocked Countries | 0 | - | 4.99 | 115,516 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,380 |
| Countries with the Most Species | 0 | - | 4.99 | 89,533 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,364 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,685 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,013 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,297 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,422 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,704 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,158 |
| Countries in the Alps | 0 | - | 4.84 | 102,675 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,337 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 87,195 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,593 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,272 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,988 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,573 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,639 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,151 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,327 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,661 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,440 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,599 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,673 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,507 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,982 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,483 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 98,103 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,349 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,397 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 196,389 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,935 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,286 |
| Largest Countries By Category | 0 | - | 4.96 | 144,936 |
| Countries by Countries | 0 | - | 4.96 | 54,655 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,075,251 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,494 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,710 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,225 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 116,615 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 181,076 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 341,248 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 355,721 |
| Island Countries Quiz | 0 | - | 4.99 | 660,816 |
| Biggest Countries by Area | 0 | - | 5.00 | 933,602 |
| Northernmost Countries | 0 | - | 4.99 | 327,315 |
| Countries of South America | 0 | - | 5.00 | 793,949 |
| Countries of Oceania | 0 | - | 5.00 | 894,323 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,155,289 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,574,150 |
| Countries with J | 0 | - | 4.56 | 171,940 |
| Add A Letter - Make a Country | 0 | - | 4.79 | 68,147 |
| Countries by Consonants | 0 | - | 4.44 | 72,963 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 126,011 |
| Countries with Megacities | 0 | - | 4.99 | 197,424 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,686 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,029 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,497 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,988 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 248,115 |
| Countries by Official Language | 0 | - | 4.96 | 172,593 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,388 |
| Countries in their Native Language | 0 | - | 4.98 | 178,379 |
| Independence from Whom | 0 | - | 4.99 | 185,712 |
| Subdivisions by Country | 0 | - | 4.82 | 46,447 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,520 |
| Megadiverse Countries | 0 | - | 4.96 | 125,341 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,475 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,706 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,389 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,618 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,158 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,951 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,144 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,057 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,357 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,850 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,619 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,023 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,972 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,556 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,291 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 82,369 |
| World Map Quiz | 0 | - | 4.90 | 49,462 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 113,650 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,526 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,906 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,008 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 108,111 |
| Countries With the Most Languages | 0 | - | 4.91 | 173,802 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,370 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,664 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,373 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 54,013 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,487 |
| Widest Countries East to West | 0 | - | 4.93 | 119,415 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,830 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,079 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,679 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 85,628 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 119,396 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,219 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,475 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.82 | 32,065 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,331 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,228 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,666 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 208,019 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,504 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,541 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 133,155 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 194,002 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,934 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,923 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,099 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,357 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,098 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,312,110 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,780 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,066,455 |
| One Border Countries | 0 | - | 4.98 | 410,349 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 93,158 |
| Most Similar Country Names | 0 | - | 4.15 | 43,682 |
| Longest Country Name A-Z | 0 | - | 4.36 | 37,006 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,397,373 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,168 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 245,171 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,112 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 90,007 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 69,888 |
| Countries by National Anthem | 0 | - | 4.95 | 61,853 |
| NATO Countries Quiz | 0 | - | 4.98 | 225,591 |
| EU Countries Quiz | 0 | - | 4.99 | 228,063 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,762 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,643 |
| Countries That Use the Euro | 0 | - | 4.92 | 63,199 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 226,022 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 217,528 |
| German-Speaking Countries | 0 | - | 4.88 | 117,576 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,943 |
| Countries with Wild Penguins | 0 | - | 4.93 | 90,225 |
