| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,076 |
| Countries in World War I | 0 | - | 4.88 | 228,195 |
| Battle to Country | 0 | - | 4.91 | 53,363 |
| Important Cities in WWII | 0 | - | 4.42 | 93,491 |
| Independence from Whom | 0 | - | 4.99 | 211,766 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,019 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,496 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,250 |
| Countries by Founding Story | 0 | - | 4.95 | 77,241 |
| Communist Countries in History | 0 | - | 4.63 | 495,849 |
| Recently Independent Countries | 0 | - | 4.98 | 159,273 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,963 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,319 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,913 |
| Countries by Former Name | 0 | - | 4.99 | 125,153 |
| Historical City to Country | 0 | - | 4.84 | 78,549 |
| Cities Bombed During WWII | 0 | - | 4.08 | 30,166 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,477,247 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,455 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,943 |
| WWII First Names | 0 | - | 4.44 | 41,794 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,660 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,316 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,207 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,770 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,265 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,556 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,275 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,637 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,265 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,514 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,272 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,285 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,793 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,768 |
| Landlocked Countries | 0 | - | 4.99 | 420,760 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,479 |
| Orthodox Countries | 0 | - | 4.92 | 131,992 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,597 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,907 |
| Monarchies of Europe | 0 | - | 4.90 | 98,174 |
| Monarchies of Asia | 0 | - | 4.97 | 71,105 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,906 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,769,056 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,787 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,857 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,035 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,465 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,628 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 134,656 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,209 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,153 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,048 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,992 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,477 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,112 |
| Countries by Independence Day | 0 | - | 4.61 | 52,744 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,394 |
| Island Countries | 0 | - | 4.99 | 710,516 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,838 |
| Himalayan Countries | 0 | - | 4.95 | 138,176 |
| Andean Countries | 0 | - | 4.95 | 84,308 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,532 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,412 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,164 |
| Former Countries by Capital | 0 | - | 4.45 | 127,491 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,596 |
| Danube Countries | 0 | - | 4.97 | 71,856 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,829 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,261 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,022 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,472 |
| European Landlocked Countries | 0 | - | 4.99 | 146,996 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,404 |
| Countries with the Most Species | 0 | - | 4.99 | 103,113 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,565 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,519 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,668 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,457 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,130 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,522 |
| Countries in the Alps | 0 | - | 4.87 | 117,991 |
| Former Countries | 0 | - | 4.75 | 133,815 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,832 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,767 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,557 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,469 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,338 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,843 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,492 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,362 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,089 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,717 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,573 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,428 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,086 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,364 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,385 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,592 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,186 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,709 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,840 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,299 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,730 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,125 |
| Largest Countries By Category | 0 | - | 4.97 | 157,967 |
| Countries by Countries | 0 | - | 4.97 | 63,042 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,317 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,682 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,489 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,227 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,520 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,532 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,172 |
| Northernmost Countries | 0 | - | 4.99 | 361,350 |
| Political Movements by Country | 0 | - | 4.46 | 72,540 |
| Countries of South America | 0 | - | 5.00 | 925,363 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,395 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,591 |
| "Land" Countries | 0 | - | 4.98 | 336,772 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,058 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,296 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,771 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,301 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,831 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,820 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,082 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,430 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,541 |
| Countries with Megacities | 0 | - | 4.99 | 263,591 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,378 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,289 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,655 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,329 |
| Countries by Official Language | 0 | - | 4.95 | 194,984 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,009 |
| Countries in their Native Language | 0 | - | 4.99 | 198,491 |
| Subdivisions by Country | 0 | - | 4.86 | 50,372 |
| Megadiverse Countries | 0 | - | 4.96 | 134,903 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,829 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,274 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,856 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,065 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,944 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,952 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,574 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,046 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,384 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,801 |
| Hindu Countries | 0 | - | 4.86 | 50,175 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,111 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,885 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,258 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,425 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,764 |
| World Map Quiz | 0 | - | 4.81 | 64,902 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,520 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,214 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,819 |
| Countries by Road Signs | 0 | - | 4.98 | 53,852 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,827 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,119 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,849 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,836 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,753 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,885 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,189 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,366 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,459 |
| Widest Countries East to West | 0 | - | 4.92 | 129,528 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,419 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,206 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,073 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,652 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,434 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,721 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,320 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,770 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,816 |
| Countries with Double Letters | 0 | - | 4.97 | 95,707 |
| Countries that End in N | 0 | - | 4.95 | 170,682 |
| Countries with Five Letters | 0 | - | 4.96 | 281,723 |
| Countries with Six Letters | 0 | - | 4.94 | 213,088 |
| Countries with W | 0 | - | 4.97 | 159,980 |
| Countries with Z | 0 | - | 4.98 | 290,931 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,317 |
| Countries That End in U | 0 | - | 4.95 | 120,643 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,138 |
| Countries that End in O | 0 | - | 4.92 | 159,369 |
| Countries that End in R | 0 | - | 4.87 | 118,853 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,626 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,740 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,411 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,282 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,891 |
| Countries That End in Y | 0 | - | 4.91 | 185,774 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,598 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,664 |
| Countries that End in I | 0 | - | 4.94 | 134,989 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,788 |
