| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,027 |
| Countries in World War II | 0 | - | 4.54 | 912,718 |
| Battle to Country | 0 | - | 4.91 | 53,343 |
| Important Cities in WWII | 0 | - | 4.42 | 93,473 |
| Independence from Whom | 0 | - | 4.99 | 211,709 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,981 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,478 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,215 |
| Countries by Founding Story | 0 | - | 4.95 | 77,218 |
| Communist Countries in History | 0 | - | 4.63 | 495,736 |
| Recently Independent Countries | 0 | - | 4.98 | 159,240 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,908 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,237 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,839 |
| Countries by Former Name | 0 | - | 4.99 | 125,122 |
| Historical City to Country | 0 | - | 4.84 | 78,534 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,455,925 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,410 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,620 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,277 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,196 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,745 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,249 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,539 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,245 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,521 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,199 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,508 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,217 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,217 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,748 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,742 |
| Landlocked Countries | 0 | - | 4.99 | 420,480 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,423 |
| Orthodox Countries | 0 | - | 4.92 | 131,941 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,583 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,876 |
| Monarchies of Europe | 0 | - | 4.90 | 98,153 |
| Monarchies of Asia | 0 | - | 4.97 | 71,087 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,889 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,767,334 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,735 |
| Cities Bombed During WWII | 0 | - | 4.08 | 30,158 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,993 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,414 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,608 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 134,456 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,180 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,119 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,011 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,964 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,253 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,030 |
| Countries by Independence Day | 0 | - | 4.61 | 52,739 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,202 |
| Island Countries | 0 | - | 4.99 | 710,365 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,690 |
| Himalayan Countries | 0 | - | 4.95 | 138,076 |
| Andean Countries | 0 | - | 4.95 | 84,256 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,481 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,311 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,112 |
| Former Countries by Capital | 0 | - | 4.45 | 127,479 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,556 |
| Danube Countries | 0 | - | 4.97 | 71,827 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,787 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,230 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,961 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,409 |
| European Landlocked Countries | 0 | - | 4.99 | 146,961 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,370 |
| Countries with the Most Species | 0 | - | 4.99 | 103,087 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,528 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,502 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,658 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,443 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,113 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,502 |
| Countries in the Alps | 0 | - | 4.87 | 117,954 |
| Former Countries | 0 | - | 4.75 | 133,795 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,357 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,694 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,546 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,449 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,302 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,831 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,466 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,336 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,074 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,701 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,564 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,418 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,066 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,346 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,363 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,527 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,177 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,687 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,822 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,147 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,656 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,104 |
| Largest Countries By Category | 0 | - | 4.97 | 157,921 |
| Countries by Countries | 0 | - | 4.97 | 63,007 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,379,562 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,667 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,459 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,213 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,507 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,502 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,819 |
| Northernmost Countries | 0 | - | 4.99 | 361,210 |
| Political Movements by Country | 0 | - | 4.46 | 72,530 |
| Countries of South America | 0 | - | 5.00 | 925,015 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,965 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,871,783 |
| "Land" Countries | 0 | - | 4.98 | 336,323 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,990 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,274 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,731 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,271 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,814 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,922 |
| WWII First Names | 0 | - | 4.44 | 41,784 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,797 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,651 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,326 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,453 |
| Countries with Megacities | 0 | - | 4.99 | 263,375 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,293 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,240 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,587 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,279 |
| Countries by Official Language | 0 | - | 4.95 | 194,927 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,940 |
| Countries in their Native Language | 0 | - | 4.99 | 198,452 |
| Subdivisions by Country | 0 | - | 4.86 | 50,360 |
| Megadiverse Countries | 0 | - | 4.96 | 134,880 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,790 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,256 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,845 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,059 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,908 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,936 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,565 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,040 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,337 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,794 |
| Hindu Countries | 0 | - | 4.86 | 50,151 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,092 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,867 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,253 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,415 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,657 |
| World Map Quiz | 0 | - | 4.81 | 64,859 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,402 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,195 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,776 |
| Countries by Road Signs | 0 | - | 4.98 | 53,827 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,777 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,090 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,827 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,769 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,714 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,848 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,082 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,351 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,432 |
| Widest Countries East to West | 0 | - | 4.92 | 129,499 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,415 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,161 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,061 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,639 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,409 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,700 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,310 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,764 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,776 |
| Countries with Double Letters | 0 | - | 4.97 | 95,393 |
| Countries that End in N | 0 | - | 4.95 | 170,433 |
| Countries with Five Letters | 0 | - | 4.96 | 281,372 |
| Countries with Six Letters | 0 | - | 4.94 | 212,839 |
| Countries with W | 0 | - | 4.97 | 159,729 |
| Countries with Z | 0 | - | 4.98 | 290,645 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,992 |
| Countries That End in U | 0 | - | 4.95 | 120,528 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,010 |
| Countries that End in O | 0 | - | 4.92 | 159,292 |
| Countries that End in R | 0 | - | 4.87 | 118,810 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,580 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,623 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,337 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,224 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,840 |
| Countries That End in Y | 0 | - | 4.91 | 185,731 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,542 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,624 |
| Countries that End in I | 0 | - | 4.94 | 134,961 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,739 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,672 |
