| Landlocked Countries Quiz | 0 | - | 4.99 | 324,175 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,966,229 |
| Members of the Arab League | 0 | - | 4.85 | 62,096 |
| Sahara Desert Countries | 0 | - | 4.97 | 127,050 |
| Himalayan Countries | 0 | - | 4.94 | 104,902 |
| Andean Countries | 0 | - | 4.91 | 58,172 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 59,136 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,389 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,742 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,060 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,320 |
| 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 | 71,251 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,381 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,561 |
| European Landlocked Countries | 0 | - | 4.99 | 115,516 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,381 |
| Countries with the Most Species | 0 | - | 4.99 | 89,533 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,367 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,685 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,014 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,297 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,423 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,704 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,160 |
| Countries in the Alps | 0 | - | 4.84 | 102,677 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,337 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 87,196 |
| 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 | 93,989 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,574 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,639 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,152 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,327 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,662 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,441 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,599 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,674 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,509 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,982 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,485 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 98,105 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,349 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,398 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 196,395 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,936 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,288 |
| Largest Countries By Category | 0 | - | 4.96 | 144,936 |
| Countries by Countries | 0 | - | 4.96 | 54,656 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,075,328 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,495 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,710 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 44,717 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,227 |
| Which Country Does Not Border... | 0 | - | 4.81 | 85,912 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 341,250 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 355,723 |
| Island Countries Quiz | 0 | - | 4.99 | 660,820 |
| Biggest Countries by Area | 0 | - | 5.00 | 933,619 |
| Northernmost Countries | 0 | - | 4.99 | 327,316 |
| Countries of South America | 0 | - | 5.00 | 793,966 |
| Countries of Oceania | 0 | - | 5.00 | 894,340 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,155,375 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,574,182 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 126,016 |
| Countries with Megacities | 0 | - | 4.99 | 197,435 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,692 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,033 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,502 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,990 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 248,126 |
| Countries by Official Language | 0 | - | 4.96 | 172,612 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,391 |
| Countries in their Native Language | 0 | - | 4.98 | 178,382 |
| Independence from Whom | 0 | - | 4.99 | 185,713 |
| Subdivisions by Country | 0 | - | 4.82 | 46,447 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,522 |
| Megadiverse Countries | 0 | - | 4.96 | 125,343 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,482 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,707 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,389 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,619 |
| 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 | 145,145 |
| 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 | 72,025 |
| 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 | 65,294 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 82,374 |
| World Map Quiz | 0 | - | 4.90 | 49,468 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 113,654 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,529 |
| 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 | 108,113 |
| Countries With the Most Languages | 0 | - | 4.91 | 173,802 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,371 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,665 |
| 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 | 119,417 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,831 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,081 |
| 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 | 85,629 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 119,397 |
| 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 | 32,066 |
| Countries with Double Letters | 0 | - | 4.96 | 68,517 |
| Countries that End in N | 0 | - | 4.93 | 132,851 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,908 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 187,186 |
| Countries with W | 0 | - | 4.97 | 122,819 |
| Countries with Z | 0 | - | 4.98 | 244,581 |
| Countries with Letters Missing | 0 | - | 4.97 | 166,717 |
| Countries That End in U | 0 | - | 4.95 | 107,618 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,628 |
| Countries that End in O | 0 | - | 4.92 | 146,988 |
| 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 | 171,497 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,861 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,273 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,355 |
| Countries That End in Y | 0 | - | 4.90 | 161,671 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 161,098 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,835 |
| Countries that End in I | 0 | - | 4.92 | 114,525 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,630 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,329 |
| Countries That End in NIA | 0 | - | 4.93 | 100,894 |
| Countries That End in BIA | 0 | - | 4.91 | 126,154 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,325 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,816 |
| Countries That End in RIA | 0 | - | 4.90 | 101,027 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,517 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,962 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,794 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,688 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,492 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,303 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,798 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,874 |
| Countries with the Word "And" | 0 | - | 4.98 | 83,546 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,829 |
| Countries that End in L | 0 | - | 4.95 | 134,341 |
| "Land" Countries | 0 | - | 4.98 | 289,319 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,948 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,189 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,332 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,229 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,667 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 208,020 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,505 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,541 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 133,156 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 194,006 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,938 |
| 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 | 82,360 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,100 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,312,121 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,782 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,066,510 |
| One Border Countries | 0 | - | 4.98 | 410,352 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,881 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,397,438 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,169 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 245,175 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,113 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 90,008 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 69,892 |
| Countries by National Anthem | 0 | - | 4.95 | 61,854 |
| NATO Countries Quiz | 0 | - | 4.98 | 225,593 |
| EU Countries Quiz | 0 | - | 4.99 | 228,066 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,763 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,643 |
| Countries That Use the Euro | 0 | - | 4.92 | 63,206 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 226,024 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 217,529 |
| German-Speaking Countries | 0 | - | 4.88 | 117,578 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,945 |
| Countries with Wild Penguins | 0 | - | 4.93 | 90,226 |
| Solve the Secret Country #1 | 0 | - | 4.95 | 130,246 |
| Top Five Countries by Religion | 0 | - | 4.90 | 142,129 |
| Solve the Secret Country #2 | 0 | - | 4.90 | 88,396 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 81,654 |
| Olympic Host Countries | 0 | - | 4.98 | 161,923 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 98,971 |
