| Countries with Double Letters | 0 | - | 4.96 | 68,793 |
| Countries that End in N | 0 | - | 4.93 | 133,081 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 230,170 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 187,598 |
| Countries with W | 0 | - | 4.97 | 122,984 |
| Countries with Z | 0 | - | 4.98 | 244,807 |
| Countries with Letters Missing | 0 | - | 4.97 | 167,218 |
| Countries That End in U | 0 | - | 4.95 | 107,745 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,794 |
| Countries that End in O | 0 | - | 4.92 | 147,052 |
| Countries that End in R | 0 | - | 4.85 | 96,554 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,335 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,646 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,968 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,345 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,431 |
| Countries That End in Y | 0 | - | 4.90 | 161,704 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 161,226 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,934 |
| Countries that End in I | 0 | - | 4.92 | 114,559 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,769 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,385 |
| Countries That End in NIA | 0 | - | 4.93 | 100,952 |
| Countries That End in BIA | 0 | - | 4.91 | 126,231 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,407 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,886 |
| Countries That End in RIA | 0 | - | 4.90 | 101,071 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,577 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 201,176 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,918 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,826 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,623 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 92,381 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,868 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,925 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,918 |
| Countries that End in L | 0 | - | 4.95 | 134,397 |
| "Land" Countries | 0 | - | 4.98 | 289,447 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 189,062 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,202 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,938 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 324,835 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,018,970 |
| Countries with Four Letters | 0 | - | 4.99 | 375,782 |
| Members of the Arab League | 0 | - | 4.86 | 62,478 |
| Sahara Desert Countries | 0 | - | 4.97 | 127,310 |
| Himalayan Countries | 0 | - | 4.94 | 105,141 |
| Andean Countries | 0 | - | 4.91 | 58,356 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 59,311 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,490 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,839 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,129 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,360 |
| Danube Countries | 0 | - | 4.97 | 56,693 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,739 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,877 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,348 |
| Countries with the Worst Passports | 0 | - | 4.88 | 49,443 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,639 |
| European Landlocked Countries | 0 | - | 4.99 | 115,560 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,454 |
| Countries with the Most Species | 0 | - | 4.99 | 89,542 |
| Countries 197 to 205 | 0 | - | 4.89 | 56,425 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,702 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,027 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,349 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,445 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,732 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,212 |
| Countries in the Alps | 0 | - | 4.84 | 102,746 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,403 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 87,335 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,643 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,339 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,049 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,621 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,706 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,191 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,348 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,712 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,483 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,636 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,705 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,570 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,032 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,536 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 98,243 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,389 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,439 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 196,735 |
| World Countries - Blind Typing | 0 | - | 5.00 | 73,092 |
| Countries in Their Own Alphabet | 0 | - | 4.94 | 42,324 |
| Largest Countries By Category | 0 | - | 4.96 | 145,031 |
| Countries by Countries | 0 | - | 4.96 | 54,716 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,080,961 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,647 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,748 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,333 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 116,674 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 181,330 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 341,453 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 356,063 |
| Island Countries Quiz | 0 | - | 4.99 | 661,282 |
| Biggest Countries by Area | 0 | - | 5.00 | 934,508 |
| Northernmost Countries | 0 | - | 4.99 | 327,817 |
| Countries of South America | 0 | - | 5.00 | 795,097 |
| Countries of Oceania | 0 | - | 5.00 | 895,606 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,160,745 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,576,748 |
| Countries with J | 0 | - | 4.57 | 172,060 |
| Add A Letter - Make a Country | 0 | - | 4.79 | 68,205 |
| Countries by Consonants | 0 | - | 4.44 | 73,015 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 126,506 |
| Countries with Megacities | 0 | - | 4.99 | 197,791 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 172,019 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,233 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 95,856 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,203 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 248,533 |
| Countries by Official Language | 0 | - | 4.96 | 172,979 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,607 |
| Countries in their Native Language | 0 | - | 4.98 | 178,520 |
| Independence from Whom | 0 | - | 4.99 | 185,902 |
| Subdivisions by Country | 0 | - | 4.82 | 46,484 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,652 |
| Megadiverse Countries | 0 | - | 4.96 | 125,417 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,615 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,760 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,414 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,716 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,203 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,063 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,191 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,100 |
| Countries in Relation to Cities #1 | 0 | - | 4.91 | 41,369 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,934 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,650 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,073 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,987 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,605 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,336 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 82,597 |
| World Map Quiz | 0 | - | 4.90 | 49,622 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 113,955 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,603 |
| Southernmost Countries of the World | 0 | - | 4.99 | 207,076 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,081 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 108,210 |
| Countries With the Most Languages | 0 | - | 4.91 | 174,018 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,432 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,733 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,450 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 54,070 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,561 |
| Widest Countries East to West | 0 | - | 4.93 | 119,493 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,854 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,173 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,721 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 85,687 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 119,473 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,297 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,498 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,087 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,404 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,278 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,717 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 208,216 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,763 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,613 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 133,259 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 194,164 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,023 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,958 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,140 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,422 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,150 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,313,120 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,960 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,069,793 |
| One Border Countries | 0 | - | 4.98 | 410,641 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 93,226 |
| Most Similar Country Names | 0 | - | 4.15 | 43,714 |
| Longest Country Name A-Z | 0 | - | 4.36 | 37,051 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,401,238 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,250 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 245,313 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,203 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 100,528 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 70,158 |
| Countries by National Anthem | 0 | - | 4.95 | 61,884 |
| NATO Countries Quiz | 0 | - | 4.98 | 226,027 |
| EU Countries Quiz | 0 | - | 4.99 | 228,373 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,858 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,670 |
| Countries That Use the Euro | 0 | - | 4.92 | 63,391 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 226,259 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 217,960 |
| German-Speaking Countries | 0 | - | 4.88 | 117,619 |
| Countries with Wild Tigers | 0 | - | 4.95 | 111,007 |
| Countries with Wild Penguins | 0 | - | 4.93 | 90,270 |
