| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,221 |
| Countries in World War I | 0 | - | 4.88 | 228,341 |
| Battle to Country | 0 | - | 4.91 | 53,444 |
| Important Cities in WWII | 0 | - | 4.42 | 93,554 |
| Independence from Whom | 0 | - | 4.99 | 211,947 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,628 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,559 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,376 |
| Countries by Founding Story | 0 | - | 4.95 | 77,314 |
| Communist Countries in History | 0 | - | 4.63 | 496,179 |
| Recently Independent Countries | 0 | - | 4.98 | 159,388 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,110 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,556 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,143 |
| Countries by Former Name | 0 | - | 4.99 | 125,247 |
| Historical City to Country | 0 | - | 4.84 | 78,600 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,189 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,534,958 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,576 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 78,005 |
| WWII First Names | 0 | - | 4.44 | 41,820 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,780 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,423 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,266 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,851 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,298 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,603 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,348 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,704 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,457 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,548 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,400 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,462 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,917 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,850 |
| Landlocked Countries | 0 | - | 4.99 | 421,382 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,654 |
| Orthodox Countries | 0 | - | 4.92 | 132,138 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,625 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,975 |
| Monarchies of Europe | 0 | - | 4.90 | 98,255 |
| Monarchies of Asia | 0 | - | 4.97 | 71,156 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,964 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,774,344 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,911 |
| World Leaders of the World Wars | 0 | - | 4.36 | 37,880 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,149 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,628 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,713 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,089 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,290 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,239 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,154 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,050 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,083 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,338 |
| Countries by Independence Day | 0 | - | 4.61 | 52,764 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,851 |
| Island Countries | 0 | - | 4.99 | 710,822 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,161 |
| Himalayan Countries | 0 | - | 4.95 | 138,453 |
| Andean Countries | 0 | - | 4.93 | 84,454 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,652 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,621 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,287 |
| Former Countries by Capital | 0 | - | 4.45 | 127,544 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,690 |
| Danube Countries | 0 | - | 4.97 | 71,939 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,926 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,354 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,174 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,638 |
| European Landlocked Countries | 0 | - | 4.99 | 147,065 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,519 |
| Countries with the Most Species | 0 | - | 4.99 | 103,175 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,670 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,547 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,694 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,498 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,179 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,594 |
| Countries in the Alps | 0 | - | 4.87 | 118,109 |
| Former Countries | 0 | - | 4.75 | 133,867 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,677 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,923 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,603 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,537 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,423 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,895 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,590 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,442 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,139 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,791 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,615 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,481 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,162 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,417 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,453 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,743 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,246 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 62,183 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,968 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,634 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,925 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,171 |
| Largest Countries By Category | 0 | - | 4.97 | 158,096 |
| Countries by Countries | 0 | - | 4.96 | 63,129 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,382,168 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,720 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,601 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,254 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,545 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,611 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,074 |
| Northernmost Countries | 0 | - | 4.99 | 361,687 |
| Political Movements by Country | 0 | - | 4.46 | 72,585 |
| Countries of South America | 0 | - | 5.00 | 926,440 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,765 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,875,300 |
| "Land" Countries | 0 | - | 4.98 | 337,146 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,247 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,361 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,886 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,356 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,895 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,946 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,199 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,741 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,739 |
| Countries with Megacities | 0 | - | 4.99 | 264,187 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,590 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,390 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,849 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,452 |
| Countries by Official Language | 0 | - | 4.95 | 195,128 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,206 |
| Countries in their Native Language | 0 | - | 4.99 | 198,923 |
| Subdivisions by Country | 0 | - | 4.86 | 50,400 |
| Megadiverse Countries | 0 | - | 4.96 | 134,960 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,972 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,317 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,976 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,088 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,036 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,996 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,611 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,077 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,558 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,843 |
| Hindu Countries | 0 | - | 4.86 | 50,237 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,162 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,930 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,317 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,462 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,011 |
| World Map Quiz | 0 | - | 4.81 | 65,009 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,950 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,291 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,953 |
| Countries by Road Signs | 0 | - | 4.98 | 53,950 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,976 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,209 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,932 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,049 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,822 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,957 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,251 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,408 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,524 |
| Widest Countries East to West | 0 | - | 4.92 | 129,589 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,436 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,318 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,098 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,725 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,522 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,799 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,350 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,789 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,923 |
| Countries with Double Letters | 0 | - | 4.96 | 96,079 |
| Countries that End in N | 0 | - | 4.95 | 170,964 |
| Countries with Five Letters | 0 | - | 4.96 | 282,152 |
| Countries with Six Letters | 0 | - | 4.94 | 213,385 |
| Countries with W | 0 | - | 4.97 | 160,208 |
| Countries with Z | 0 | - | 4.98 | 291,266 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,566 |
| Countries That End in U | 0 | - | 4.95 | 120,774 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,334 |
| Countries that End in O | 0 | - | 4.92 | 159,462 |
| Countries that End in R | 0 | - | 4.87 | 118,925 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,685 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,942 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,604 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,407 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,322 |
| Countries That End in Y | 0 | - | 4.91 | 185,835 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,806 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,769 |
| Countries that End in I | 0 | - | 4.94 | 135,047 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,983 |
