| Boundary Waters | 0 | - | 4.92 | 88,723 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,377 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,604 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,810,689 |
| Landlocked Countries | 0 | - | 4.99 | 424,849 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,882 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,857 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,882 |
| World Capitals Quiz | 0 | - | 5.00 | 5,101,081 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,795 |
| Himalayan Countries | 0 | - | 4.93 | 139,885 |
| Andean Countries | 0 | - | 4.94 | 85,240 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,417 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,746 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,984 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,287 |
| Danube Countries | 0 | - | 4.97 | 72,298 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,452 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,741 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,921 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,420 |
| European Landlocked Countries | 0 | - | 4.99 | 147,496 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,142 |
| Countries with the Most Species | 0 | - | 4.99 | 103,508 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,286 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,723 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,837 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,770 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,507 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,936 |
| Countries in the Alps | 0 | - | 4.87 | 118,646 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,417 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,676 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,902 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,930 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,852 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,168 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,293 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,794 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,360 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,098 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,808 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,678 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,478 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,713 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,804 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,591 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,542 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,631 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,530 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,343 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,922 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,457 |
| Largest Countries By Category | 0 | - | 4.97 | 158,721 |
| Countries by Countries | 0 | - | 4.96 | 63,544 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,150 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,374 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,012 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,798,538 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,378 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,956 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,738 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,601 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,860 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,504 |
| Longest International Borders | 0 | - | 4.99 | 265,699 |
| Countries with Three Borders | 0 | - | 4.96 | 36,735 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,308 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,454 |
| Demonym of Every Country | 0 | - | 4.90 | 61,356 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,722 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,597,616 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,419 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,192 |
| Island Countries | 0 | - | 4.99 | 712,220 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,696 |
| Northernmost Countries | 0 | - | 4.99 | 363,589 |
| Countries of South America | 0 | - | 5.00 | 931,404 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,788 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,886,389 |
| "Land" Countries | 0 | - | 4.98 | 338,172 |
| Top World Languages | 0 | - | 4.92 | 828,661 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,391,567 |
| Europe Map Quiz | 0 | - | 5.00 | 4,783,813 |
| All Country Flags of the World | 0 | - | 5.00 | 3,706,193 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,703 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,380 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,911 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,836 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,150 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,911 |
| Countries with Megacities | 0 | - | 4.99 | 266,636 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,619 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,985 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,922 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,087 |
| Biggest Cities in the World | 0 | - | 4.91 | 804,661 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,150 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,231 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,891 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,094 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,090 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,999 |
| Countries by Capital City | 0 | - | 5.00 | 69,239 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,768 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,149 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,491 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,738 |
| Moved Capital Cities | 0 | - | 4.96 | 74,589 |
| Countries by Official Language | 0 | - | 4.95 | 195,841 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,413 |
| Countries in their Native Language | 0 | - | 4.99 | 199,615 |
| Independence from Whom | 0 | - | 4.99 | 212,866 |
| Subdivisions by Country | 0 | - | 4.87 | 50,578 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,296 |
| Megadiverse Countries | 0 | - | 4.96 | 135,215 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,823 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,496 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,403 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,200 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,490 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,787 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,998 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,523 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,786 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,231 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,323 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,330 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,396 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,115 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,540 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,656 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,126 |
| World Map Quiz | 0 | - | 4.81 | 65,556 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,810 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,620 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,069 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,985 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,464 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,339 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,319 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,449 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,651 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,638 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,409 |
| Widest Countries East to West | 0 | - | 4.92 | 130,363 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,576 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,154 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,483 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,002 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,899 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,395 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,474 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,873 |
| Countries with Double Letters | 0 | - | 4.96 | 96,889 |
| Countries that End in N | 0 | - | 4.95 | 171,774 |
| Countries with Five Letters | 0 | - | 4.96 | 283,524 |
| Countries with Six Letters | 0 | - | 4.94 | 214,247 |
| Countries with W | 0 | - | 4.96 | 160,808 |
| Countries with Z | 0 | - | 4.98 | 292,234 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,166 |
| Countries That End in U | 0 | - | 4.95 | 121,110 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,975 |
| Countries that End in O | 0 | - | 4.92 | 159,748 |
| Countries that End in R | 0 | - | 4.87 | 119,130 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,887 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,677 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,052 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,752 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,682 |
| Countries That End in Y | 0 | - | 4.91 | 186,045 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,345 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,178 |
| Countries that End in I | 0 | - | 4.94 | 135,264 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,513 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,004 |
| Countries That End in NIA | 0 | - | 4.92 | 109,991 |
| Countries That End in BIA | 0 | - | 4.93 | 149,508 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,429 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,700 |
| Countries That End in RIA | 0 | - | 4.93 | 127,010 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,302 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,393 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,073 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,514 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,082 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,762 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,261 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,520 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,825 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,607 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,626 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,316 |
| Countries that End in L | 0 | - | 4.94 | 157,063 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 217,595 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,329 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,221 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,794 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,361 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,297 |
