| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,787 |
| Countries in World War I | 0 | - | 4.88 | 226,943 |
| Battle to Country | 0 | - | 4.91 | 52,702 |
| Important Cities in WWII | 0 | - | 4.42 | 93,025 |
| Independence from Whom | 0 | - | 4.99 | 210,190 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,088 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,138 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,358 |
| Countries by Founding Story | 0 | - | 4.95 | 76,733 |
| Communist Countries in History | 0 | - | 4.63 | 493,415 |
| Recently Independent Countries | 0 | - | 4.98 | 158,228 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,906 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,752 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,475 |
| Countries by Former Name | 0 | - | 4.99 | 124,538 |
| Historical City to Country | 0 | - | 4.84 | 78,247 |
| Cities Bombed During WWII | 0 | - | 4.08 | 29,960 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,068,687 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,681 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,478 |
| WWII First Names | 0 | - | 4.44 | 41,623 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,606 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,552 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,448 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,817 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,701 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,957 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,428 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,010 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,988 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,324 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,262 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,050 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,039 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,802 |
| Landlocked Countries | 0 | - | 4.99 | 415,502 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,399 |
| Orthodox Countries | 0 | - | 4.91 | 130,692 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,422 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,304 |
| Monarchies of Europe | 0 | - | 4.90 | 97,560 |
| Monarchies of Asia | 0 | - | 4.97 | 70,743 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,550 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,731,995 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,919 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,695 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,269 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,744 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,621 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 117,271 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,315 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,469 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,352 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,608 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,935 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,854 |
| Countries by Independence Day | 0 | - | 4.56 | 52,646 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,861 |
| Island Countries | 0 | - | 4.99 | 708,380 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,357 |
| Himalayan Countries | 0 | - | 4.95 | 136,020 |
| Andean Countries | 0 | - | 4.94 | 83,189 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,514 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,660 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,201 |
| Former Countries by Capital | 0 | - | 4.45 | 127,181 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,849 |
| Danube Countries | 0 | - | 4.97 | 71,277 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,015 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,719 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,893 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,836 |
| European Landlocked Countries | 0 | - | 4.99 | 145,980 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,551 |
| Countries with the Most Species | 0 | - | 4.99 | 95,354 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,675 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,272 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,446 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,074 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,723 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,090 |
| Countries in the Alps | 0 | - | 4.86 | 117,144 |
| Former Countries | 0 | - | 4.75 | 132,879 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,769 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,620 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,166 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,602 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,400 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,152 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,818 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,907 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,704 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,215 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,279 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,147 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,628 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,891 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,906 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,490 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,803 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,351 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,052 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,338 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,237 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,738 |
| Largest Countries By Category | 0 | - | 4.97 | 157,052 |
| Countries by Countries | 0 | - | 4.96 | 62,457 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,482 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,383 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,693 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,031 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,384 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,959 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,896 |
| Northernmost Countries | 0 | - | 4.99 | 358,772 |
| Political Movements by Country | 0 | - | 4.46 | 72,347 |
| Countries of South America | 0 | - | 5.00 | 918,063 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,497 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,854,817 |
| "Land" Countries | 0 | - | 4.98 | 334,128 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 80,696 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,361 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,527 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,861 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,294 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,578 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,167 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,431 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,940 |
| Countries with Megacities | 0 | - | 4.99 | 248,281 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,842 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,379 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,227 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,309 |
| Countries by Official Language | 0 | - | 4.95 | 193,213 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,768 |
| Countries in their Native Language | 0 | - | 4.99 | 197,046 |
| Subdivisions by Country | 0 | - | 4.86 | 50,153 |
| Megadiverse Countries | 0 | - | 4.96 | 134,470 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,217 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,023 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,552 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,911 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,896 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,461 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,307 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,788 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,959 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,527 |
| Hindu Countries | 0 | - | 4.86 | 49,734 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,631 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,594 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,802 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,128 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,178 |
| World Map Quiz | 0 | - | 4.81 | 63,825 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,744 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,602 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,012 |
| Countries by Road Signs | 0 | - | 4.98 | 53,288 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,807 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,538 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,264 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,375 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,129 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,325 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,519 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,089 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,541 |
| Widest Countries East to West | 0 | - | 4.92 | 129,042 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,288 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,509 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,660 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,874 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,851 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,243 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,770 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,646 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,103 |
| Countries with Double Letters | 0 | - | 4.96 | 93,720 |
| Countries that End in N | 0 | - | 4.94 | 157,164 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,068 |
| Countries with Six Letters | 0 | - | 4.93 | 210,740 |
| Countries with W | 0 | - | 4.97 | 158,438 |
| Countries with Z | 0 | - | 4.98 | 288,280 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,784 |
| Countries That End in U | 0 | - | 4.95 | 119,625 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,904 |
| Countries that End in O | 0 | - | 4.92 | 158,669 |
| Countries that End in R | 0 | - | 4.87 | 118,385 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,940 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,448 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,579 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,671 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,221 |
| Countries That End in Y | 0 | - | 4.90 | 185,299 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,642 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,927 |
| Countries that End in I | 0 | - | 4.94 | 134,553 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,507 |
