| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,865 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 68,188 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,472 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,135 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,821 |
| Independence from Whom | 0 | - | 4.99 | 209,650 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,723 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,988 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,907 |
| Countries by Founding Story | 0 | - | 4.95 | 76,519 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,800,548 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,927 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,099 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,206 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.74 | 45,145 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.77 | 32,937 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,908,534 |
| Recently Independent Countries | 0 | - | 4.98 | 157,975 |
| Countries by Former Name | 0 | - | 4.99 | 124,267 |
| Historical City to Country | 0 | - | 4.84 | 78,122 |
| Landlocked Countries | 0 | - | 4.99 | 413,476 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 552,624 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,696 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,198 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,274 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,253 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,599 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,554 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,796 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,205 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,829 |
| Pixelated World Map | 0 | - | 5.00 | 142,415 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,268 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,387 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,715,503 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,322 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,527 |
| Himalayan Countries | 0 | - | 4.95 | 135,307 |
| Andean Countries | 0 | - | 4.94 | 82,802 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,198 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,162 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,872 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,576 |
| Danube Countries | 0 | - | 4.97 | 71,066 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,742 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,524 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,440 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,366 |
| European Landlocked Countries | 0 | - | 4.99 | 145,737 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,181 |
| Countries with the Most Species | 0 | - | 4.99 | 95,235 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,319 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,365 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,950 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,566 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,941 |
| Countries in the Alps | 0 | - | 4.86 | 116,797 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,546 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,235 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,996 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,406 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,137 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,986 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,557 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,741 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,216 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,038 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,193 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,036 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,444 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,726 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,742 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,032 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,625 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,250 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,756 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,215 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,636 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,597 |
| Largest Countries By Category | 0 | - | 4.97 | 156,733 |
| Countries by Countries | 0 | - | 4.96 | 62,246 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,359 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,959 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,328 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,632 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,089 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,752 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,712 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,069 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,775 |
| Island Countries | 0 | - | 4.99 | 707,565 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,298 |
| Northernmost Countries | 0 | - | 4.99 | 357,658 |
| Countries of South America | 0 | - | 5.00 | 914,467 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,179 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,897 |
| "Land" Countries | 0 | - | 4.98 | 333,611 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,583 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,939 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,358 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,024 |
| Battle to Country | 0 | - | 4.91 | 52,507 |
| Countries by Independence Day | 0 | - | 4.56 | 52,603 |
| Former Countries by Capital | 0 | - | 4.45 | 127,038 |
| Former Countries | 0 | - | 4.75 | 132,687 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,111 |
| Countries with Megacities | 0 | - | 4.99 | 246,757 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,038 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,917 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,461 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,809 |
| Countries by Official Language | 0 | - | 4.95 | 192,743 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,086 |
| Countries in their Native Language | 0 | - | 4.99 | 196,609 |
| Subdivisions by Country | 0 | - | 4.86 | 50,061 |
| Megadiverse Countries | 0 | - | 4.97 | 133,888 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,774 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,915 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,422 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,854 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,636 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,818 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,133 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,209 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,738 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,542 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,406 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,483 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,491 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,659 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,014 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,785 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,543 |
| World Map Quiz | 0 | - | 4.81 | 63,482 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,775 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,591 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,314 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 63,099 |
| Countries by Road Signs | 0 | - | 4.98 | 53,090 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,322 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,975 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,935 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,704 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,840 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,049 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,264 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,935 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,327 |
| Widest Countries East to West | 0 | - | 4.92 | 128,595 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,215 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,193 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,562 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,680 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,619 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,029 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,049 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,575 |
| Countries With the Tallest People | 0 | - | 4.91 | 94,510 |
| Countries with Double Letters | 0 | - | 4.97 | 93,363 |
| Countries that End in N | 0 | - | 4.94 | 156,658 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,659 |
| Countries with Six Letters | 0 | - | 4.93 | 210,323 |
| Countries with W | 0 | - | 4.97 | 158,208 |
| Countries with Z | 0 | - | 4.98 | 287,838 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,530 |
| Countries That End in U | 0 | - | 4.95 | 119,507 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,516 |
| Countries that End in O | 0 | - | 4.92 | 158,542 |
| Countries that End in R | 0 | - | 4.87 | 118,264 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,854 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,990 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,306 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,479 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,995 |
| Countries That End in Y | 0 | - | 4.90 | 185,194 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,347 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,663 |
| Countries that End in I | 0 | - | 4.94 | 134,402 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,169 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,185 |
| Countries That End in NIA | 0 | - | 4.92 | 108,995 |
| Countries That End in BIA | 0 | - | 4.92 | 147,700 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,047 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,473 |
| Countries That End in RIA | 0 | - | 4.93 | 126,067 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,988 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,161 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,505 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,882 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,343 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,922 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,104 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,630 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,492 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,809 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,116 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,796 |
| Countries that End in L | 0 | - | 4.94 | 155,711 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,110 |
