| Countries in World War I | 0 | - | 4.88 | 226,641 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,447 |
| Battle to Country | 0 | - | 4.91 | 52,545 |
| Independence from Whom | 0 | - | 4.99 | 209,738 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,786 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,015 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,047 |
| Countries by Founding Story | 0 | - | 4.95 | 76,563 |
| Recently Independent Countries | 0 | - | 4.98 | 158,004 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,541 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,225 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,932 |
| Countries by Former Name | 0 | - | 4.99 | 124,314 |
| Historical City to Country | 0 | - | 4.84 | 78,138 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,931,977 |
| Countries in World War II | 0 | - | 4.54 | 904,799 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,274 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,325 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,309 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,636 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,589 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,837 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,241 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,856 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,496 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,281 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,948 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,510 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,752 |
| Political Movements by Country | 0 | - | 4.46 | 72,268 |
| Landlocked Countries | 0 | - | 4.99 | 413,759 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,718,223 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,620 |
| National Founders | 0 | - | 4.40 | 83,654 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,070 |
| Orthodox Countries | 0 | - | 4.91 | 130,418 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,060 |
| Monarchies of Europe | 0 | - | 4.90 | 97,346 |
| Monarchies of Asia | 0 | - | 4.97 | 70,613 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,438 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,619 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,215 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,163 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,923 |
| Island Countries | 0 | - | 4.99 | 707,679 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,651 |
| Himalayan Countries | 0 | - | 4.95 | 135,413 |
| Andean Countries | 0 | - | 4.94 | 82,848 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,238 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,235 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,930 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,625 |
| Danube Countries | 0 | - | 4.97 | 71,096 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,777 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,548 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,516 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,428 |
| European Landlocked Countries | 0 | - | 4.99 | 145,769 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,231 |
| Countries with the Most Species | 0 | - | 4.99 | 95,248 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,368 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,202 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,372 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,965 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,582 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,958 |
| Countries in the Alps | 0 | - | 4.86 | 116,847 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,583 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,280 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,020 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,433 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,185 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,014 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,594 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,771 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,353 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,078 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,200 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,050 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,460 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,935 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,759 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,764 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,102 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,658 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,260 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,781 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,373 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,716 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,611 |
| Largest Countries By Category | 0 | - | 4.97 | 156,782 |
| Countries by Countries | 0 | - | 4.96 | 62,269 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,288 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,381 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,269 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,105 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,689 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,410 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,965 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,335 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,780 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,649 |
| Northernmost Countries | 0 | - | 4.99 | 357,807 |
| Countries of South America | 0 | - | 5.00 | 915,004 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,810 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,880 |
| "Land" Countries | 0 | - | 4.98 | 333,688 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,272 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,140 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,506 |
| Countries by Independence Day | 0 | - | 4.56 | 52,613 |
| Former Countries by Capital | 0 | - | 4.45 | 127,064 |
| Former Countries | 0 | - | 4.75 | 132,719 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,865 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,281 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,293 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,115 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,188 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,180 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,704 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,125 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,362 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,726 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,344 |
| Countries with Megacities | 0 | - | 4.99 | 247,105 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,213 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,039 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,629 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,951 |
| Countries by Official Language | 0 | - | 4.95 | 192,803 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,168 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,354 |
| Countries in their Native Language | 0 | - | 4.99 | 196,665 |
| Subdivisions by Country | 0 | - | 4.86 | 50,071 |
| Megadiverse Countries | 0 | - | 4.97 | 133,912 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,826 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,923 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,432 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,865 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,685 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,162 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,220 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,751 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,603 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,434 |
| Hindu Countries | 0 | - | 4.86 | 49,599 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,503 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,509 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,691 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,033 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,630 |
| World Map Quiz | 0 | - | 4.81 | 63,514 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,742 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,346 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,715 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,698 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,377 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,008 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,965 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,808 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,867 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,076 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,289 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,957 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,346 |
| Widest Countries East to West | 0 | - | 4.92 | 128,619 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,219 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,245 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,576 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,698 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,646 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,059 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,052 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,587 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,822 |
| Countries with Double Letters | 0 | - | 4.97 | 93,413 |
| Countries that End in N | 0 | - | 4.94 | 156,904 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,717 |
| Countries with Six Letters | 0 | - | 4.93 | 210,390 |
| Countries with W | 0 | - | 4.97 | 158,242 |
| Countries with Z | 0 | - | 4.98 | 287,906 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,570 |
| Countries That End in U | 0 | - | 4.95 | 119,527 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,591 |
| Countries that End in O | 0 | - | 4.92 | 158,568 |
| Countries that End in R | 0 | - | 4.87 | 118,280 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,863 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,073 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,355 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,508 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,039 |
| Countries That End in Y | 0 | - | 4.90 | 185,214 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,399 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,702 |
| Countries that End in I | 0 | - | 4.94 | 134,426 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,215 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,203 |
| Countries That End in NIA | 0 | - | 4.92 | 109,015 |
| Countries That End in BIA | 0 | - | 4.92 | 147,725 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,085 |
