| Boundary Waters | 0 | - | 4.92 | 88,666 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,331 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,476 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,728,555 |
| Landlocked Countries | 0 | - | 4.99 | 423,785 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,817 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,700 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,726 |
| World Capitals Quiz | 0 | - | 5.00 | 5,094,471 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,327 |
| Himalayan Countries | 0 | - | 4.94 | 139,498 |
| Andean Countries | 0 | - | 4.94 | 85,041 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,237 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,436 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,795 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,109 |
| Danube Countries | 0 | - | 4.97 | 72,206 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,297 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,618 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,702 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,204 |
| European Landlocked Countries | 0 | - | 4.99 | 147,369 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,969 |
| Countries with the Most Species | 0 | - | 4.99 | 103,417 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,107 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,680 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,792 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,688 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,434 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,850 |
| Countries in the Alps | 0 | - | 4.87 | 118,484 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,065 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,435 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,809 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,809 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,737 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,096 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,912 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,665 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,290 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,015 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,760 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,627 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,384 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,637 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,720 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,366 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,473 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,208 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,347 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,892 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,650 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,376 |
| Largest Countries By Category | 0 | - | 4.97 | 158,537 |
| Countries by Countries | 0 | - | 4.96 | 63,435 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,002 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,346 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,897 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,791,788 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,132 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,925 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,651 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,571 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,546 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,441 |
| Longest International Borders | 0 | - | 4.99 | 265,521 |
| Countries with Three Borders | 0 | - | 4.96 | 36,689 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,239 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,360 |
| Demonym of Every Country | 0 | - | 4.90 | 61,141 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,192 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,595,160 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,090 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,504 |
| Island Countries | 0 | - | 4.99 | 711,741 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,366 |
| Northernmost Countries | 0 | - | 4.99 | 363,038 |
| Countries of South America | 0 | - | 5.00 | 929,926 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,200 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,123 |
| "Land" Countries | 0 | - | 4.98 | 337,870 |
| Top World Languages | 0 | - | 4.92 | 827,134 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,388,403 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,221 |
| All Country Flags of the World | 0 | - | 5.00 | 3,696,504 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,644 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,354 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,772 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,174 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,694 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,430 |
| Countries with Megacities | 0 | - | 4.99 | 265,841 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,230 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,750 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,489 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,839 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,308 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,942 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,877 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,776 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,968 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,896 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,749 |
| Countries by Capital City | 0 | - | 5.00 | 69,031 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,621 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,031 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,995 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,613 |
| Moved Capital Cities | 0 | - | 4.96 | 74,508 |
| Countries by Official Language | 0 | - | 4.95 | 195,630 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,026 |
| Countries in their Native Language | 0 | - | 4.99 | 199,404 |
| Independence from Whom | 0 | - | 4.99 | 212,549 |
| Subdivisions by Country | 0 | - | 4.87 | 50,526 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,067 |
| Megadiverse Countries | 0 | - | 4.96 | 135,154 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,433 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,456 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,339 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,162 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,369 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,697 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,733 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,470 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,746 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,206 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,084 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,192 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,327 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,056 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,473 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,599 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,812 |
| World Map Quiz | 0 | - | 4.81 | 65,378 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,250 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,529 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,637 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,659 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,322 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,942 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,186 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,305 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,522 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,580 |
| Tallest Countries North to South | 0 | - | 4.85 | 128,627 |
| Widest Countries East to West | 0 | - | 4.92 | 130,172 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,525 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,018 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,439 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,926 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,801 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,079 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,446 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,851 |
| Countries with Double Letters | 0 | - | 4.96 | 96,662 |
| Countries that End in N | 0 | - | 4.95 | 171,552 |
| Countries with Five Letters | 0 | - | 4.96 | 283,199 |
| Countries with Six Letters | 0 | - | 4.94 | 214,015 |
| Countries with W | 0 | - | 4.96 | 160,635 |
| Countries with Z | 0 | - | 4.98 | 291,950 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,999 |
| Countries That End in U | 0 | - | 4.95 | 121,016 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,784 |
| Countries that End in O | 0 | - | 4.92 | 159,666 |
| Countries that End in R | 0 | - | 4.87 | 119,071 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,830 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,461 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,932 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,649 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,572 |
| Countries That End in Y | 0 | - | 4.91 | 185,994 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,186 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,071 |
| Countries that End in I | 0 | - | 4.94 | 135,212 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,371 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,929 |
| Countries That End in NIA | 0 | - | 4.92 | 109,919 |
| Countries That End in BIA | 0 | - | 4.93 | 149,398 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,333 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,613 |
| Countries That End in RIA | 0 | - | 4.93 | 126,936 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,211 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,089 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,950 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,390 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,926 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,687 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,183 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,490 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,718 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,545 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,515 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 54,197 |
| Countries that End in L | 0 | - | 4.94 | 156,994 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,699 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,304 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,150 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,081 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,130 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,102 |
