| Countries of the World Quiz | 0 | - | 5.00 | 41,038,349 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 356,184 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 99,097 |
| Countries with the Most Airports | 0 | - | 4.96 | 80,578 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.96 | 103,610 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 92,636 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 325,085 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,082,860 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,162,535 |
| Members of the Arab League | 0 | - | 4.86 | 62,577 |
| Sahara Desert Countries | 0 | - | 4.97 | 127,368 |
| Himalayan Countries | 0 | - | 4.94 | 105,206 |
| Andean Countries | 0 | - | 4.91 | 58,398 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 59,353 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,519 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,877 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,145 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,392 |
| Danube Countries | 0 | - | 4.97 | 56,713 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,749 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,894 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,384 |
| Countries with the Worst Passports | 0 | - | 4.88 | 49,468 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,664 |
| European Landlocked Countries | 0 | - | 4.99 | 115,580 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,470 |
| Countries with the Most Species | 0 | - | 4.99 | 89,549 |
| Countries 197 to 205 | 0 | - | 4.89 | 56,449 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,716 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,032 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,358 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,453 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,738 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,229 |
| Countries in the Alps | 0 | - | 4.84 | 102,781 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,431 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 87,398 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,652 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,357 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,064 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,641 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,724 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,208 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,357 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,729 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,489 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,641 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,709 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,585 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,048 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,554 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 98,292 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,403 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,455 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 196,876 |
| World Countries - Blind Typing | 0 | - | 5.00 | 73,131 |
| Countries in Their Own Alphabet | 0 | - | 4.94 | 42,339 |
| Largest Countries By Category | 0 | - | 4.96 | 145,070 |
| Countries by Countries | 0 | - | 4.96 | 54,736 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,691 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,752 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,349 |
| Countries by Airline Passengers | 0 | - | 4.91 | 49,216 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 341,536 |
| Island Countries Quiz | 0 | - | 4.99 | 661,447 |
| Biggest Countries by Area | 0 | - | 5.00 | 934,835 |
| Northernmost Countries | 0 | - | 4.99 | 327,881 |
| Countries of South America | 0 | - | 5.00 | 795,473 |
| Countries of Oceania | 0 | - | 5.00 | 896,110 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,577,594 |
| Largest Countries with Little Tourism | 0 | - | 4.72 | 54,831 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 95,409 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 76,677 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 126,581 |
| Countries with Megacities | 0 | - | 4.99 | 197,911 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 172,114 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,293 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 95,949 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,269 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 248,657 |
| Countries by Official Language | 0 | - | 4.96 | 173,067 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,679 |
| Countries in their Native Language | 0 | - | 4.98 | 178,567 |
| Independence from Whom | 0 | - | 4.99 | 185,955 |
| Subdivisions by Country | 0 | - | 4.82 | 46,501 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,686 |
| Megadiverse Countries | 0 | - | 4.96 | 125,425 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,655 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 106,774 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,428 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,736 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,218 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,104 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,385 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,110 |
| Countries in Relation to Cities #1 | 0 | - | 4.91 | 41,378 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,954 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,662 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,082 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,996 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,615 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,346 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 82,670 |
| World Map Quiz | 0 | - | 4.91 | 49,672 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 114,063 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,622 |
| Southernmost Countries of the World | 0 | - | 4.99 | 207,139 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,105 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 108,253 |
| Countries With the Most Languages | 0 | - | 4.91 | 174,106 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,460 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,758 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,478 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 54,099 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,583 |
| Widest Countries East to West | 0 | - | 4.93 | 119,514 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,858 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,209 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,731 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 85,704 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 119,494 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,317 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,504 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.82 | 32,098 |
| Countries with Double Letters | 0 | - | 4.96 | 68,924 |
| Countries that End in N | 0 | - | 4.93 | 133,194 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 230,319 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 187,818 |
| Countries with W | 0 | - | 4.97 | 123,073 |
| Countries with Z | 0 | - | 4.98 | 244,940 |
| Countries with Letters Missing | 0 | - | 4.97 | 167,364 |
| Countries That End in U | 0 | - | 4.95 | 107,801 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,885 |
| Countries that End in O | 0 | - | 4.92 | 147,097 |
| Countries that End in R | 0 | - | 4.85 | 96,579 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,355 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,705 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,998 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,372 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,453 |
| Countries That End in Y | 0 | - | 4.90 | 161,720 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 161,258 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,961 |
| Countries that End in I | 0 | - | 4.92 | 114,574 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,812 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,405 |
| Countries That End in NIA | 0 | - | 4.93 | 100,978 |
| Countries That End in BIA | 0 | - | 4.91 | 126,265 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,437 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,907 |
| Countries That End in RIA | 0 | - | 4.90 | 101,092 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,610 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 201,267 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,948 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,864 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,652 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 92,397 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,900 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,940 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,956 |
| Countries that End in L | 0 | - | 4.95 | 134,422 |
| "Land" Countries | 0 | - | 4.98 | 289,503 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 189,100 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,207 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,476 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,327 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,749 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 208,277 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,859 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,640 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 133,301 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 194,219 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,053 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,973 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,159 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,453 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,169 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,313,496 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 350,038 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,070,934 |
| One Border Countries | 0 | - | 4.98 | 410,748 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,402,471 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.24 | 76,744 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,961 |
| U.S. National Parks Map Quiz | 0 | - | 4.51 | 51,781 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,276 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 245,378 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,235 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 101,999 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 70,248 |
| Countries by National Anthem | 0 | - | 4.95 | 61,893 |
| NATO Countries Quiz | 0 | - | 4.98 | 226,113 |
| EU Countries Quiz | 0 | - | 4.99 | 228,453 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,885 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,680 |
| Countries That Use the Euro | 0 | - | 4.92 | 63,454 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 226,319 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 218,049 |
| German-Speaking Countries | 0 | - | 4.88 | 117,635 |
| Countries with Wild Tigers | 0 | - | 4.95 | 111,030 |
