| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,514 |
| Countries in World War I | 0 | - | 4.88 | 228,577 |
| Battle to Country | 0 | - | 4.91 | 53,607 |
| Important Cities in WWII | 0 | - | 4.42 | 93,652 |
| Independence from Whom | 0 | - | 4.99 | 212,281 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,862 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,643 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,574 |
| Countries by Founding Story | 0 | - | 4.95 | 77,438 |
| Communist Countries in History | 0 | - | 4.63 | 496,831 |
| Recently Independent Countries | 0 | - | 4.98 | 159,558 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,364 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,934 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,457 |
| Countries by Former Name | 0 | - | 4.99 | 125,430 |
| Historical City to Country | 0 | - | 4.84 | 78,675 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,223 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,641,821 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,803 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 78,099 |
| WWII First Names | 0 | - | 4.44 | 41,867 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,953 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,571 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,339 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,976 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,367 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,672 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,476 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,815 |
| Countries with the Most Christians | 0 | - | 4.93 | 143,724 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,579 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,621 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,776 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,124 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,964 |
| Landlocked Countries | 0 | - | 4.99 | 422,721 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,890 |
| Orthodox Countries | 0 | - | 4.92 | 132,354 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,675 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,127 |
| Monarchies of Europe | 0 | - | 4.90 | 98,435 |
| Monarchies of Asia | 0 | - | 4.97 | 71,284 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,071 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,784,020 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,100 |
| World Leaders of the World Wars | 0 | - | 4.36 | 37,923 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,358 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,944 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,874 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,872 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,456 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,418 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,345 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,539 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,283 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,732 |
| Countries by Independence Day | 0 | - | 4.62 | 52,794 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,790 |
| Island Countries | 0 | - | 4.99 | 711,309 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,892 |
| Himalayan Countries | 0 | - | 4.95 | 139,065 |
| Andean Countries | 0 | - | 4.93 | 84,820 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,048 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,136 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,625 |
| Former Countries by Capital | 0 | - | 4.45 | 127,631 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,944 |
| Danube Countries | 0 | - | 4.97 | 72,109 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,141 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,512 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,475 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,965 |
| European Landlocked Countries | 0 | - | 4.99 | 147,243 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,784 |
| Countries with the Most Species | 0 | - | 4.99 | 103,320 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,910 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,635 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,757 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,603 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,330 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,751 |
| Countries in the Alps | 0 | - | 4.87 | 118,323 |
| Former Countries | 0 | - | 4.75 | 133,984 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,598 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,214 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,727 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,685 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,597 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,008 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,766 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,577 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,230 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,934 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,699 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,578 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,306 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,546 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,612 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,078 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,376 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,557 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,220 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,347 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,358 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,294 |
| Largest Countries By Category | 0 | - | 4.97 | 158,359 |
| Countries by Countries | 0 | - | 4.96 | 63,328 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,385,556 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,832 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,788 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,312 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,588 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,758 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,819 |
| Northernmost Countries | 0 | - | 4.99 | 362,324 |
| Political Movements by Country | 0 | - | 4.46 | 72,649 |
| Countries of South America | 0 | - | 5.00 | 928,423 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,259 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,879,594 |
| "Land" Countries | 0 | - | 4.98 | 337,557 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,595 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,504 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,104 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,465 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,998 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,336 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,401 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,271 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,119 |
| Countries with Megacities | 0 | - | 4.99 | 265,096 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,932 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,602 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,201 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,671 |
| Countries by Official Language | 0 | - | 4.95 | 195,404 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,584 |
| Countries in their Native Language | 0 | - | 4.99 | 199,186 |
| Subdivisions by Country | 0 | - | 4.87 | 50,465 |
| Megadiverse Countries | 0 | - | 4.96 | 135,076 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,217 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,395 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,274 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,132 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,224 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,318 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,695 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,172 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,847 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,931 |
| Hindu Countries | 0 | - | 4.86 | 50,342 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,249 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,005 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,397 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,532 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,431 |
| World Map Quiz | 0 | - | 4.81 | 65,195 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,667 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,419 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,180 |
| Countries by Road Signs | 0 | - | 4.98 | 54,084 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,241 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,362 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,078 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,459 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,976 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,084 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,364 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,485 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,625 |
| Widest Countries East to West | 0 | - | 4.92 | 129,722 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,474 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,469 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,150 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,818 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,663 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,943 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,398 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,815 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,285 |
| Countries with Double Letters | 0 | - | 4.96 | 96,409 |
| Countries that End in N | 0 | - | 4.95 | 171,290 |
| Countries with Five Letters | 0 | - | 4.96 | 282,788 |
| Countries with Six Letters | 0 | - | 4.94 | 213,734 |
| Countries with W | 0 | - | 4.97 | 160,451 |
| Countries with Z | 0 | - | 4.98 | 291,644 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,817 |
| Countries That End in U | 0 | - | 4.95 | 120,908 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,581 |
| Countries that End in O | 0 | - | 4.92 | 159,566 |
| Countries that End in R | 0 | - | 4.87 | 119,005 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,767 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,253 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,773 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,542 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,460 |
| Countries That End in Y | 0 | - | 4.91 | 185,925 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,019 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,939 |
| Countries that End in I | 0 | - | 4.94 | 135,140 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,202 |
