| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,560 |
| Countries in World War I | 0 | - | 4.88 | 227,701 |
| Battle to Country | 0 | - | 4.91 | 53,063 |
| Important Cities in WWII | 0 | - | 4.42 | 93,296 |
| Independence from Whom | 0 | - | 4.99 | 211,121 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,557 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,312 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,822 |
| Countries by Founding Story | 0 | - | 4.95 | 76,985 |
| Communist Countries in History | 0 | - | 4.63 | 494,553 |
| Recently Independent Countries | 0 | - | 4.98 | 158,838 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,402 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,510 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,169 |
| Countries by Former Name | 0 | - | 4.99 | 124,825 |
| Historical City to Country | 0 | - | 4.84 | 78,389 |
| Cities Bombed During WWII | 0 | - | 4.08 | 30,074 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,262,384 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,063 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,720 |
| WWII First Names | 0 | - | 4.44 | 41,723 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,229 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,014 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,007 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,027 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,104 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,371 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,997 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,204 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,601 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,428 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,749 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,624 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,363 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,499 |
| Landlocked Countries | 0 | - | 4.99 | 417,945 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,928 |
| Orthodox Countries | 0 | - | 4.92 | 131,147 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,499 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,563 |
| Monarchies of Europe | 0 | - | 4.90 | 97,850 |
| Monarchies of Asia | 0 | - | 4.97 | 70,915 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,732 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,750,287 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,334 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,779 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,619 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,392 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,933 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 120,670 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,618 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,772 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,670 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,768 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,084 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,327 |
| Countries by Independence Day | 0 | - | 4.61 | 52,698 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,585 |
| Island Countries | 0 | - | 4.99 | 709,334 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,503 |
| Himalayan Countries | 0 | - | 4.94 | 136,999 |
| Andean Countries | 0 | - | 4.95 | 83,720 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,965 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,323 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,644 |
| Former Countries by Capital | 0 | - | 4.45 | 127,312 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,215 |
| Danube Countries | 0 | - | 4.97 | 71,557 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,400 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,969 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,462 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,515 |
| European Landlocked Countries | 0 | - | 4.99 | 146,605 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,985 |
| Countries with the Most Species | 0 | - | 4.99 | 102,692 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,122 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,385 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,553 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,242 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,907 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,291 |
| Countries in the Alps | 0 | - | 4.86 | 117,534 |
| Former Countries | 0 | - | 4.75 | 133,081 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,033 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,177 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,352 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,880 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,984 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,380 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,148 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,100 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,906 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,467 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,429 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,288 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,844 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,110 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,136 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,984 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,990 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,514 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,395 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,798 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,970 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,920 |
| Largest Countries By Category | 0 | - | 4.97 | 157,483 |
| Countries by Countries | 0 | - | 4.96 | 62,750 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,373,492 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,510 |
| Country Flags with the Most White | 0 | - | 4.87 | 138,065 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,126 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,449 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,233 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,944 |
| Northernmost Countries | 0 | - | 4.99 | 360,023 |
| Political Movements by Country | 0 | - | 4.46 | 72,433 |
| Countries of South America | 0 | - | 5.00 | 921,643 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,428 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,863,229 |
| "Land" Countries | 0 | - | 4.98 | 335,538 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 82,840 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,673 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,022 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,093 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,546 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,363 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,905 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,367 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,681 |
| Countries with Megacities | 0 | - | 4.99 | 249,783 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,518 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,786 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,850 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,773 |
| Countries by Official Language | 0 | - | 4.95 | 194,452 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,278 |
| Countries in their Native Language | 0 | - | 4.99 | 198,011 |
| Subdivisions by Country | 0 | - | 4.86 | 50,252 |
| Megadiverse Countries | 0 | - | 4.96 | 134,696 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,149 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,145 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,700 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,988 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,595 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,745 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,445 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,917 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,641 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,658 |
| Hindu Countries | 0 | - | 4.86 | 49,945 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,868 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,726 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,038 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,278 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,923 |
| World Map Quiz | 0 | - | 4.81 | 64,368 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,078 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,922 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,388 |
| Countries by Road Signs | 0 | - | 4.98 | 53,563 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,306 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,822 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,544 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,066 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,425 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,600 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,747 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,212 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,208 |
| Widest Countries East to West | 0 | - | 4.92 | 129,272 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,363 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,831 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,966 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,444 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,117 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,465 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,191 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,707 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,440 |
| Countries with Double Letters | 0 | - | 4.97 | 94,884 |
| Countries that End in N | 0 | - | 4.95 | 169,450 |
| Countries with Five Letters | 0 | - | 4.96 | 278,191 |
| Countries with Six Letters | 0 | - | 4.94 | 212,224 |
| Countries with W | 0 | - | 4.97 | 159,358 |
| Countries with Z | 0 | - | 4.98 | 289,573 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,570 |
| Countries That End in U | 0 | - | 4.95 | 120,332 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,580 |
| Countries that End in O | 0 | - | 4.92 | 159,133 |
| Countries that End in R | 0 | - | 4.87 | 118,673 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,461 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,152 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,996 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,995 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,585 |
| Countries That End in Y | 0 | - | 4.90 | 185,591 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,086 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,303 |
| Countries that End in I | 0 | - | 4.94 | 134,812 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,928 |
