| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,038 |
| Countries in World War I | 0 | - | 4.88 | 228,158 |
| Countries in World War II | 0 | - | 4.54 | 912,789 |
| Battle to Country | 0 | - | 4.91 | 53,349 |
| Important Cities in WWII | 0 | - | 4.42 | 93,475 |
| Independence from Whom | 0 | - | 4.99 | 211,721 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,988 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,485 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,224 |
| Countries by Founding Story | 0 | - | 4.95 | 77,224 |
| Communist Countries in History | 0 | - | 4.63 | 495,759 |
| Recently Independent Countries | 0 | - | 4.98 | 159,252 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,924 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,254 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,856 |
| Countries by Former Name | 0 | - | 4.99 | 125,133 |
| Historical City to Country | 0 | - | 4.84 | 78,537 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,925 |
| WWII First Names | 0 | - | 4.44 | 41,785 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,634 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,290 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,198 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,753 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,252 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,543 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,253 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,461,518 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,599 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,223 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,508 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,237 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,232 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,759 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,743 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,885 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,442 |
| Orthodox Countries | 0 | - | 4.92 | 131,954 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,499 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,583 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,881 |
| Monarchies of Europe | 0 | - | 4.90 | 98,158 |
| Monarchies of Asia | 0 | - | 4.97 | 71,093 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,895 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,750 |
| Cities Bombed During WWII | 0 | - | 4.08 | 30,160 |
| Landlocked Countries | 0 | - | 4.99 | 420,550 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,999 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,426 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,614 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 134,507 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,190 |
| World Map Without 20 Random Countries | 0 | - | 4.99 | 8,324,086 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,767,762 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,125 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,023 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,970 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,305 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,051 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,248 |
| Island Countries | 0 | - | 4.99 | 710,396 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,717 |
| Himalayan Countries | 0 | - | 4.95 | 138,090 |
| Andean Countries | 0 | - | 4.95 | 84,270 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,488 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,336 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,121 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,565 |
| Danube Countries | 0 | - | 4.97 | 71,836 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,797 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,237 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,977 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,425 |
| European Landlocked Countries | 0 | - | 4.99 | 146,966 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,379 |
| Countries with the Most Species | 0 | - | 4.99 | 103,092 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,532 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,508 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,659 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,444 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,116 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,506 |
| Countries in the Alps | 0 | - | 4.87 | 117,961 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,487 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,711 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,549 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,454 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,306 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,833 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,471 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,341 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,078 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,704 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,568 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,421 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,071 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,349 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,366 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,544 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,181 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,691 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,823 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,186 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,669 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,111 |
| Largest Countries By Category | 0 | - | 4.97 | 157,932 |
| Countries by Countries | 0 | - | 4.97 | 63,013 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,379,736 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,671 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,468 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,218 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,512 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,907 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,511 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,549,025 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,895 |
| Northernmost Countries | 0 | - | 4.99 | 361,232 |
| Countries of South America | 0 | - | 5.00 | 925,123 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,067 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,871,979 |
| "Land" Countries | 0 | - | 4.98 | 336,437 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,004 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,278 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,741 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,275 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,818 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,803 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,758 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,355 |
| Countries by Independence Day | 0 | - | 4.61 | 52,740 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,422 |
| Former Countries by Capital | 0 | - | 4.45 | 127,482 |
| Former Countries | 0 | - | 4.75 | 133,804 |
| Hindu Countries | 0 | - | 4.86 | 50,158 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,787 |
| Countries in an Egg of the World Map | 0 | - | 4.91 | 64,455 |
| Political Movements by Country | 0 | - | 4.46 | 72,531 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,781 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,390 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,829,096 |
| One Border Countries | 0 | - | 4.98 | 468,637 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,250 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,623,522 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,856 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,471 |
| Countries with Megacities | 0 | - | 4.99 | 263,441 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,305 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,255 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,605 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,291 |
| Majority Muslim Countries | 0 | - | 4.98 | 374,353 |
| Countries by Official Language | 0 | - | 4.95 | 194,941 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,961 |
| Countries in their Native Language | 0 | - | 4.99 | 198,465 |
| Subdivisions by Country | 0 | - | 4.86 | 50,362 |
| National Founders | 0 | - | 4.40 | 83,843 |
| Megadiverse Countries | 0 | - | 4.96 | 134,886 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,101,734 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,808 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,260 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 450,867 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,846 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,060 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,916 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,938 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,565 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,043 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,347 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,796 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,095 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,873 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,253 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,417 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,684 |
| World Map Quiz | 0 | - | 4.81 | 64,867 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,424 |
| Countries in Random Rings of the World Map | 0 | - | 4.99 | 86,574 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,198 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,235 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 82,707 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 522,355 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 337,381 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,786 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,096 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,832 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,780 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,726 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,860 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,150 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,353 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,439 |
| Widest Countries East to West | 0 | - | 4.92 | 129,506 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,416 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,167 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,063 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,643 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,417 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,708 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,311 |
| Countries with the Most Borders | 0 | - | 4.97 | 388,488 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,764 |
