| Countries of the World in 1444 | 0 | - | 4.98 | 59,523 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,870 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 68,196 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,494 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,151 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,847 |
| Independence from Whom | 0 | - | 4.99 | 209,676 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,735 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,993 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,938 |
| Countries by Founding Story | 0 | - | 4.95 | 76,529 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,800,871 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,945 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,766 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.74 | 45,148 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.77 | 32,940 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,914,780 |
| Recently Independent Countries | 0 | - | 4.98 | 157,980 |
| Countries by Former Name | 0 | - | 4.99 | 124,281 |
| Historical City to Country | 0 | - | 4.84 | 78,124 |
| Landlocked Countries | 0 | - | 4.99 | 413,541 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 552,832 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,698 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,218 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,287 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,263 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,606 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,560 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,808 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,213 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,835 |
| Pixelated World Map | 0 | - | 5.00 | 142,429 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,271 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,421 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,716,102 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,338 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,559 |
| Himalayan Countries | 0 | - | 4.95 | 135,331 |
| Andean Countries | 0 | - | 4.94 | 82,810 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,206 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,188 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,885 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,591 |
| Danube Countries | 0 | - | 4.97 | 71,072 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,751 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,531 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,457 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,379 |
| European Landlocked Countries | 0 | - | 4.99 | 145,743 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,193 |
| Countries with the Most Species | 0 | - | 4.99 | 95,238 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,331 |
| 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 | 58,952 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,571 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,947 |
| Countries in the Alps | 0 | - | 4.86 | 116,812 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,554 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,245 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,997 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,413 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,153 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,993 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,567 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,743 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,261 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,044 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,193 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,040 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,449 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,734 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,746 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,051 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,635 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,252 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,763 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,249 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,661 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,599 |
| Largest Countries By Category | 0 | - | 4.97 | 156,747 |
| Countries by Countries | 0 | - | 4.96 | 62,251 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,375 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,961 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,330 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,660 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,095 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,758 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,841 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,096 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,814 |
| Island Countries | 0 | - | 4.99 | 707,593 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,370 |
| Northernmost Countries | 0 | - | 4.99 | 357,690 |
| Countries of South America | 0 | - | 5.00 | 914,599 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,322 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,093 |
| "Land" Countries | 0 | - | 4.98 | 333,636 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,589 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,161 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,363 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,036 |
| Battle to Country | 0 | - | 4.91 | 52,519 |
| Countries by Independence Day | 0 | - | 4.56 | 52,608 |
| Former Countries by Capital | 0 | - | 4.45 | 127,043 |
| Former Countries | 0 | - | 4.75 | 132,697 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,164 |
| Countries with Megacities | 0 | - | 4.99 | 246,830 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,085 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,948 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,501 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,837 |
| Countries by Official Language | 0 | - | 4.95 | 192,760 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,109 |
| Countries in their Native Language | 0 | - | 4.99 | 196,625 |
| Subdivisions by Country | 0 | - | 4.86 | 50,063 |
| Megadiverse Countries | 0 | - | 4.97 | 133,896 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,789 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,918 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,425 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,857 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,645 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,851 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,140 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,210 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,739 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,560 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,411 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,489 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,500 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,668 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,020 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,796 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,569 |
| World Map Quiz | 0 | - | 4.81 | 63,491 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,800 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,646 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,321 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 63,113 |
| Countries by Road Signs | 0 | - | 4.98 | 53,096 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,337 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,980 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,944 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,735 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,848 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,056 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,269 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,940 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,332 |
| Widest Countries East to West | 0 | - | 4.92 | 128,600 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,216 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,203 |
| 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 | 93,682 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,625 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,034 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,050 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,580 |
| Countries With the Tallest People | 0 | - | 4.91 | 94,514 |
| Countries with Double Letters | 0 | - | 4.97 | 93,378 |
| Countries that End in N | 0 | - | 4.94 | 156,775 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,672 |
| Countries with Six Letters | 0 | - | 4.93 | 210,350 |
| Countries with W | 0 | - | 4.97 | 158,220 |
| Countries with Z | 0 | - | 4.98 | 287,864 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,543 |
| Countries That End in U | 0 | - | 4.95 | 119,513 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,531 |
| Countries that End in O | 0 | - | 4.92 | 158,550 |
| Countries that End in R | 0 | - | 4.87 | 118,270 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,856 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,005 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,313 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,485 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,004 |
| Countries That End in Y | 0 | - | 4.90 | 185,197 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,362 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,678 |
| Countries that End in I | 0 | - | 4.94 | 134,408 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,186 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,190 |
| Countries That End in NIA | 0 | - | 4.92 | 109,004 |
| Countries That End in BIA | 0 | - | 4.92 | 147,709 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,053 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,480 |
| Countries That End in RIA | 0 | - | 4.93 | 126,075 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,999 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,171 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,514 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,883 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,350 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,926 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,116 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,638 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,501 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,811 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,126 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,802 |
| Countries that End in L | 0 | - | 4.94 | 155,718 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,157 |
