| Countries by Former Name | 0 | - | 4.99 | 119,092 |
| Independence from Whom | 0 | - | 4.99 | 197,591 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 122,001 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 58,859 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 84,994 |
| Countries by Founding Story | 0 | - | 4.94 | 71,832 |
| Cities by Former Name | 0 | - | 4.85 | 87,161 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 150,842 |
| Countries of the World in 1900 | 0 | - | 4.87 | 74,281 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 181,179 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 137,826 |
| Historical City to Country | 0 | - | 4.83 | 75,005 |
| Countries of the World Quiz | 0 | - | 5.00 | 43,696,541 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 374,501 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,339,373 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,413,774 |
| Most Populous Countries by Year | 0 | - | 4.81 | 101,138 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 129,104 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 71,804 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 79,710 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 56,097 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 69,752 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 91,407 |
| Sahara Desert Countries | 0 | - | 4.98 | 141,788 |
| Himalayan Countries | 0 | - | 4.95 | 118,847 |
| Andean Countries | 0 | - | 4.92 | 66,596 |
| Countries with the Oldest Median Age | 0 | - | 4.83 | 67,663 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 55,188 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 110,523 |
| Coffee Producing Countries | 0 | - | 4.81 | 58,233 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 57,922 |
| Danube Countries | 0 | - | 4.97 | 59,907 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 95,622 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 80,962 |
| Countries with the Best Passports | 0 | - | 4.81 | 78,435 |
| Countries with the Worst Passports | 0 | - | 4.92 | 60,997 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 134,640 |
| European Landlocked Countries | 0 | - | 4.99 | 139,856 |
| Partially Recognized Countries | 0 | - | 4.98 | 96,454 |
| Countries with the Most Species | 0 | - | 4.99 | 91,740 |
| Countries 197 to 205 | 0 | - | 4.87 | 61,911 |
| Countries Settled by Vikings | 0 | - | 4.93 | 116,252 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,315 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,439 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 51,807 |
| Countries that Use the Peso | 0 | - | 4.84 | 48,939 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,367 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 52,818 |
| Countries in the Alps | 0 | - | 4.86 | 108,736 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 89,762 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 95,974 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 74,693 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 82,606 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 109,572 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,157 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,051 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,102 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,410 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,027 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,164 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 50,747 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 38,616 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,410 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,113 |
| Countries with the Most Grassland | 0 | - | 4.93 | 72,759 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 107,153 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,180 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,121 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 218,263 |
| World Countries - Blind Typing | 0 | - | 5.00 | 82,836 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 44,464 |
| Largest Countries By Category | 0 | - | 4.97 | 150,089 |
| Countries by Countries | 0 | - | 4.96 | 57,779 |
| Country Flags with the Most White | 0 | - | 4.87 | 130,297 |
| Warsaw Pact Countries | 0 | - | 4.82 | 82,233 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,361 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.93 | 58,334 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,039 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 92,827 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 82,931 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 357,012 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 378,025 |
| Island Countries Quiz | 0 | - | 4.99 | 685,918 |
| Biggest Countries by Area | 0 | - | 5.00 | 980,327 |
| Northernmost Countries | 0 | - | 4.99 | 340,089 |
| Countries of South America | 0 | - | 5.00 | 849,965 |
| Countries of Oceania | 0 | - | 5.00 | 960,845 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,700,932 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 167,489 |
| Countries by Independence Day | 0 | - | 4.56 | 45,315 |
| Former Countries by Capital | 0 | - | 4.43 | 107,414 |
| Former Countries | 0 | - | 4.74 | 128,800 |
| Guerrillas by Country | 0 | - | 4.43 | 39,831 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,228,617 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 73,383 |
| Battle to Country | 0 | - | 4.91 | 48,079 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 155,574 |
| Countries with Megacities | 0 | - | 4.99 | 214,626 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 184,356 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 104,981 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 105,521 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 71,719 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 266,375 |
| Countries by Official Language | 0 | - | 4.95 | 182,232 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 279,476 |
| Countries in their Native Language | 0 | - | 4.98 | 187,146 |
| Subdivisions by Country | 0 | - | 4.86 | 48,186 |
| Megadiverse Countries | 0 | - | 4.96 | 129,895 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 120,045 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 110,188 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 49,105 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 154,079 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,368 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 79,610 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,114 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 64,953 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,178 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,348 |
| Countries with the Highest HDI | 0 | - | 4.95 | 133,706 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 71,595 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 67,975 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 95,781 |
| World Map Quiz | 0 | - | 4.88 | 56,348 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 131,453 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 85,850 |
| Countries by Road Signs | 0 | - | 4.98 | 48,803 |
| Southernmost Countries of the World | 0 | - | 4.99 | 216,678 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 97,510 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 115,012 |
| Countries With the Most Languages | 0 | - | 4.88 | 186,928 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 91,822 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 87,564 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 92,245 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 57,702 |
| Tallest Countries North to South | 0 | - | 4.85 | 114,834 |
| Widest Countries East to West | 0 | - | 4.92 | 123,744 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,944 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 164,331 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,065 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 89,588 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 124,143 |
| Countries with the Most Desert | 0 | - | 4.93 | 122,567 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 67,783 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 33,325 |
| Countries with Double Letters | 0 | - | 4.96 | 80,136 |
| Countries that End in N | 0 | - | 4.93 | 144,310 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 243,195 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 198,518 |
| Countries with W | 0 | - | 4.97 | 131,957 |
| Countries with Z | 0 | - | 4.98 | 273,661 |
| Countries with Letters Missing | 0 | - | 4.97 | 175,242 |
| Countries That End in U | 0 | - | 4.95 | 113,304 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 98,757 |
| Countries that End in O | 0 | - | 4.92 | 152,978 |
| Countries that End in R | 0 | - | 4.84 | 99,429 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,439 |
| Countries Ending in "IA" | 0 | - | 4.99 | 196,347 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 162,308 |
| Countries by Last Two Letters | 0 | - | 4.89 | 121,079 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 134,602 |
| Countries That End in Y | 0 | - | 4.91 | 181,212 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 187,780 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 126,555 |
| Countries that End in I | 0 | - | 4.92 | 117,007 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 157,226 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 91,523 |
| Countries That End in NIA | 0 | - | 4.92 | 104,555 |
| Countries That End in BIA | 0 | - | 4.92 | 141,601 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 160,095 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 113,997 |
| Countries That End in RIA | 0 | - | 4.89 | 104,876 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 105,079 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 213,064 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 126,100 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 117,780 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 83,804 |
| Countries With One Word and Three A's | 0 | - | 4.93 | 47,867 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 96,945 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 119,080 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 45,750 |
| Countries with the Word "And" | 0 | - | 4.98 | 88,928 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 46,699 |
| Countries that End in L | 0 | - | 4.94 | 151,024 |
| "Land" Countries | 0 | - | 4.98 | 298,437 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 195,804 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,737 |
| City to Country Quiz #1 | 0 | - | 4.95 | 138,408 |
| City to Country Quiz #3 | 0 | - | 4.87 | 103,126 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 74,841 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 217,760 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 191,294 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 121,478 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 139,479 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 214,340 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 146,173 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,415 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 105,402 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,582 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,303 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,370,288 |
