| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,983 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,982 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,140 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,822,090 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,614,214 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,551 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,715 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,368 |
| Five Closest Countries by Country #3 | 0 | - | 4.97 | 121,130 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,642 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,038 |
| Countries Closest to an Unknown Country A-Z #1 | 0 | - | 4.91 | 79,961 |
| Countries Closest to an Unknown Country A-Z #2 | 0 | - | 4.96 | 73,148 |
| Countries Closest to an Unknown Country A-Z #3 | 0 | - | 4.91 | 61,542 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,323,359 |
| Landlocked Countries | 0 | - | 4.99 | 418,769 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 567,652 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,755,784 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,928 |
| Himalayan Countries | 0 | - | 4.94 | 137,357 |
| Andean Countries | 0 | - | 4.95 | 83,902 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,194 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,607 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,807 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,326 |
| Danube Countries | 0 | - | 4.97 | 71,635 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,521 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,037 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,608 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,693 |
| European Landlocked Countries | 0 | - | 4.99 | 146,751 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,105 |
| Countries with the Most Species | 0 | - | 4.99 | 102,891 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,240 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,428 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,581 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,291 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,971 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,347 |
| Countries in the Alps | 0 | - | 4.87 | 117,656 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,113 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,333 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,397 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,963 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,070 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,435 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,255 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,172 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,956 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,537 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,468 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,331 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,908 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,177 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,198 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,144 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,052 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,562 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,501 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,293 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,185 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,985 |
| Largest Countries By Category | 0 | - | 4.97 | 157,609 |
| Countries by Countries | 0 | - | 4.96 | 62,824 |
| Pixelated World Map | 0 | - | 5.00 | 143,140 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,181 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,788 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,154 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,465 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,471 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,097 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,286 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,454 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,628 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,306 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,934 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,823 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,556 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,008 |
| Island Countries | 0 | - | 4.99 | 709,672 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,870 |
| Northernmost Countries | 0 | - | 4.99 | 360,390 |
| Countries of South America | 0 | - | 5.00 | 922,685 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,745 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,865,869 |
| "Land" Countries | 0 | - | 4.98 | 335,759 |
| Countries With the Most Neighbors | 0 | - | 4.47 | 101,340 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,348 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,931 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,616 |
| All Counties of the United States by Proximity | 0 | - | 4.98 | 306,465 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,972 |
| Countries with Megacities | 0 | - | 4.99 | 258,669 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,843 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,961 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,127 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,967 |
| Countries by Official Language | 0 | - | 4.95 | 194,609 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,488 |
| Countries in their Native Language | 0 | - | 4.99 | 198,153 |
| Independence from Whom | 0 | - | 4.99 | 211,266 |
| Subdivisions by Country | 0 | - | 4.86 | 50,278 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,672 |
| Megadiverse Countries | 0 | - | 4.96 | 134,756 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,527 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,175 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,740 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,009 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,690 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,366 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,948 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,831 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,471 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,914 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,702 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,761 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,315 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,145 |
| World Map Quiz | 0 | - | 4.81 | 64,497 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,532 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,016 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,739 |
| Countries by Sports in 60 Seconds | 0 | - | 4.91 | 144,448 |
| Countries by Founding Story | 0 | - | 4.95 | 77,047 |
| Countries by Road Signs | 0 | - | 4.98 | 53,640 |
| Countries That Do Not Border | 0 | - | 4.99 | 60,068 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,470 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,909 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,624 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,290 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,502 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,660 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,813 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,253 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,271 |
| Widest Countries East to West | 0 | - | 4.92 | 129,349 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,378 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,937 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,987 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,499 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,204 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,530 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,225 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,724 |
| Countries With the Tallest People | 0 | - | 4.93 | 94,792 |
| Countries with Double Letters | 0 | - | 4.97 | 95,062 |
| Countries that End in N | 0 | - | 4.95 | 169,939 |
| Countries with Five Letters | 0 | - | 4.96 | 280,005 |
| Countries with Six Letters | 0 | - | 4.94 | 212,445 |
| Countries with W | 0 | - | 4.97 | 159,503 |
| Countries with Z | 0 | - | 4.98 | 289,770 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,712 |
| Countries That End in U | 0 | - | 4.95 | 120,400 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,728 |
| Countries that End in O | 0 | - | 4.92 | 159,187 |
| Countries that End in R | 0 | - | 4.87 | 118,727 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,502 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,304 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,088 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,069 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,655 |
| Countries That End in Y | 0 | - | 4.90 | 185,643 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,203 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,402 |
| Countries that End in I | 0 | - | 4.94 | 134,856 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,051 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,566 |
| Countries That End in NIA | 0 | - | 4.92 | 109,504 |
| Countries That End in BIA | 0 | - | 4.93 | 148,827 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,692 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,037 |
| Countries That End in RIA | 0 | - | 4.93 | 126,522 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,608 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,645 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,200 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,551 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,092 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,312 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,668 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,218 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,104 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,187 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,807 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,517 |
| Countries with the Highest Scrabble Score | 0 | - | 4.97 | 63,431 |
| Countries that End in L | 0 | - | 4.94 | 156,532 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,938 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,152 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,826 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,711 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,757 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,750 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,140 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,596 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,103 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,589 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,569 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,943 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,591 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,649 |
