| Boundary Waters | 0 | - | 4.92 | 88,807 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,433 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,770 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,929,628 |
| Landlocked Countries | 0 | - | 4.99 | 426,719 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,963 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,080 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,116 |
| World Capitals Quiz | 0 | - | 5.00 | 5,110,357 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,645 |
| Himalayan Countries | 0 | - | 4.93 | 140,577 |
| Andean Countries | 0 | - | 4.94 | 85,668 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,803 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,293 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,355 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,583 |
| Danube Countries | 0 | - | 4.97 | 72,494 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,714 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,914 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,316 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,763 |
| European Landlocked Countries | 0 | - | 4.99 | 147,685 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,427 |
| Countries with the Most Species | 0 | - | 4.99 | 103,611 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,545 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,795 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,924 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,889 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,631 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,084 |
| Countries in the Alps | 0 | - | 4.87 | 118,882 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,841 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,026 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,023 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,113 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,056 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,338 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,487 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,938 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,480 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,262 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,927 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,798 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,624 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,865 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,965 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,036 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,673 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,833 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,768 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,013 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,339 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,572 |
| Largest Countries By Category | 0 | - | 4.97 | 158,976 |
| Countries by Countries | 0 | - | 4.97 | 63,730 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,355 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,430 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,174 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,808,712 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,535 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,014 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,848 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,638 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,273 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,617 |
| Longest International Borders | 0 | - | 4.99 | 265,909 |
| Countries with Three Borders | 0 | - | 4.96 | 36,807 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,393 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,536 |
| Demonym of Every Country | 0 | - | 4.90 | 61,567 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,101 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,601,052 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,893 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,063 |
| Island Countries | 0 | - | 4.99 | 712,800 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,521 |
| Northernmost Countries | 0 | - | 4.99 | 364,339 |
| Countries of South America | 0 | - | 5.00 | 933,561 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,559 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,314 |
| "Land" Countries | 0 | - | 4.98 | 338,662 |
| Top World Languages | 0 | - | 4.92 | 830,635 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,574 |
| Europe Map Quiz | 0 | - | 5.00 | 4,790,716 |
| All Country Flags of the World | 0 | - | 5.00 | 3,719,769 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,756 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,401 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 105,055 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,181 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,761 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,363 |
| Countries with Megacities | 0 | - | 4.99 | 267,533 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,019 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,252 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,347 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,352 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,371 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,425 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,469 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,034 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,282 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,341 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,267 |
| Countries by Capital City | 0 | - | 5.00 | 69,527 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,002 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,291 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,182 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,892 |
| Moved Capital Cities | 0 | - | 4.96 | 74,697 |
| Countries by Official Language | 0 | - | 4.95 | 196,135 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,805 |
| Countries in their Native Language | 0 | - | 4.99 | 199,857 |
| Independence from Whom | 0 | - | 4.99 | 213,260 |
| Subdivisions by Country | 0 | - | 4.87 | 50,644 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,574 |
| Megadiverse Countries | 0 | - | 4.96 | 146,536 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,052 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,560 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,760 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,241 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,371 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,895 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,201 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,600 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,130 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,278 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,668 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,446 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,473 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,189 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,610 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,928 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,562 |
| World Map Quiz | 0 | - | 4.81 | 65,860 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,603 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,768 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,402 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,166 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,637 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,759 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,497 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,615 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,803 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,737 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,869 |
| Widest Countries East to West | 0 | - | 4.92 | 130,788 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,620 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,324 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,541 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,110 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,059 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,551 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,520 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,911 |
| Countries with Double Letters | 0 | - | 4.96 | 97,337 |
| Countries that End in N | 0 | - | 4.95 | 172,413 |
| Countries with Five Letters | 0 | - | 4.96 | 284,321 |
| Countries with Six Letters | 0 | - | 4.94 | 214,723 |
| Countries with W | 0 | - | 4.96 | 161,127 |
| Countries with Z | 0 | - | 4.98 | 292,717 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,477 |
| Countries That End in U | 0 | - | 4.95 | 121,294 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,259 |
| Countries that End in O | 0 | - | 4.92 | 160,296 |
| Countries that End in R | 0 | - | 4.87 | 119,236 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,003 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,002 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 177,903 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,973 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,170 |
| Countries That End in Y | 0 | - | 4.91 | 186,131 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,800 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,347 |
| Countries that End in I | 0 | - | 4.94 | 135,372 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,900 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,105 |
| Countries That End in NIA | 0 | - | 4.92 | 110,111 |
| Countries That End in BIA | 0 | - | 4.93 | 149,667 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,851 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,838 |
| Countries That End in RIA | 0 | - | 4.93 | 127,104 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,469 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,795 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,290 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,748 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,298 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,859 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,387 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,569 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,982 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,685 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,820 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,516 |
| Countries that End in L | 0 | - | 4.94 | 157,193 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,307 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,367 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,682 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,080 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,507 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,564 |
