| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,562 |
| Countries in World War I | 0 | - | 4.88 | 226,753 |
| Battle to Country | 0 | - | 4.91 | 52,607 |
| Important Cities in WWII | 0 | - | 4.42 | 92,936 |
| Independence from Whom | 0 | - | 4.99 | 209,905 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,900 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,056 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,190 |
| Countries by Founding Story | 0 | - | 4.95 | 76,619 |
| Communist Countries in History | 0 | - | 4.63 | 492,914 |
| Recently Independent Countries | 0 | - | 4.98 | 158,086 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,665 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,401 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,147 |
| Countries by Former Name | 0 | - | 4.99 | 124,402 |
| Historical City to Country | 0 | - | 4.84 | 78,184 |
| Cities Bombed During WWII | 0 | - | 4.08 | 29,930 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,986,505 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,507 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,395 |
| WWII First Names | 0 | - | 4.44 | 41,595 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,412 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,429 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,370 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,717 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,646 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,904 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,328 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,925 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,635 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,300 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,036 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,784 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,832 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,693 |
| Landlocked Countries | 0 | - | 4.99 | 414,422 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,176 |
| Orthodox Countries | 0 | - | 4.91 | 130,504 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,384 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,180 |
| Monarchies of Europe | 0 | - | 4.90 | 97,425 |
| Monarchies of Asia | 0 | - | 4.97 | 70,659 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,479 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,723,387 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,723 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,670 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,090 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,443 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,441 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,327 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,162 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,338 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,204 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,535 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,950 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,420 |
| Countries by Independence Day | 0 | - | 4.56 | 52,632 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,234 |
| Island Countries | 0 | - | 4.99 | 707,926 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,930 |
| Himalayan Countries | 0 | - | 4.95 | 135,639 |
| Andean Countries | 0 | - | 4.94 | 82,989 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,345 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,397 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,045 |
| Former Countries by Capital | 0 | - | 4.45 | 127,104 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,717 |
| Danube Countries | 0 | - | 4.97 | 71,159 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,872 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,621 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,658 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,561 |
| European Landlocked Countries | 0 | - | 4.99 | 145,862 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,331 |
| Countries with the Most Species | 0 | - | 4.99 | 95,290 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,479 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,228 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,396 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,006 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,644 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,011 |
| Countries in the Alps | 0 | - | 4.86 | 116,954 |
| Former Countries | 0 | - | 4.75 | 132,790 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,659 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,422 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,082 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,491 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,269 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,074 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,672 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,826 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,563 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,131 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,225 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,089 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,518 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,813 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,816 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,240 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,724 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,303 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,878 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,741 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,935 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,674 |
| Largest Countries By Category | 0 | - | 4.97 | 156,890 |
| Countries by Countries | 0 | - | 4.96 | 62,341 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,609 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,330 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,528 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,994 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,354 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,843 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,563 |
| Northernmost Countries | 0 | - | 4.99 | 358,159 |
| Political Movements by Country | 0 | - | 4.46 | 72,298 |
| Countries of South America | 0 | - | 5.00 | 916,168 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,292 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,175 |
| "Land" Countries | 0 | - | 4.98 | 333,868 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,159 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,227 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,254 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,759 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,182 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,408 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,433 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,981 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,642 |
| Countries with Megacities | 0 | - | 4.99 | 247,613 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,490 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,212 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,897 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,140 |
| Countries by Official Language | 0 | - | 4.95 | 192,948 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,371 |
| Countries in their Native Language | 0 | - | 4.99 | 196,799 |
| Subdivisions by Country | 0 | - | 4.86 | 50,104 |
| Megadiverse Countries | 0 | - | 4.97 | 133,965 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,959 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,957 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,468 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,877 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,768 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,222 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,254 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,761 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,742 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,457 |
| Hindu Countries | 0 | - | 4.86 | 49,644 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,557 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,541 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,731 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,064 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,823 |
| World Map Quiz | 0 | - | 4.81 | 63,658 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,148 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,416 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,851 |
| Countries by Road Signs | 0 | - | 4.98 | 53,197 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,566 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,351 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,081 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,022 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,997 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,180 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,384 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,006 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,430 |
| Widest Countries East to West | 0 | - | 4.92 | 128,934 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,253 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,339 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,606 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,758 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,704 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,136 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 73,086 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,618 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,928 |
| Countries with Double Letters | 0 | - | 4.96 | 93,550 |
| Countries that End in N | 0 | - | 4.94 | 157,033 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,855 |
| Countries with Six Letters | 0 | - | 4.93 | 210,529 |
| Countries with W | 0 | - | 4.97 | 158,333 |
| Countries with Z | 0 | - | 4.98 | 288,060 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,653 |
| Countries That End in U | 0 | - | 4.95 | 119,579 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,734 |
| Countries that End in O | 0 | - | 4.92 | 158,611 |
| Countries that End in R | 0 | - | 4.87 | 118,327 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,895 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,262 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,451 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,571 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,117 |
| Countries That End in Y | 0 | - | 4.90 | 185,250 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,497 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,797 |
| Countries that End in I | 0 | - | 4.94 | 134,487 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,332 |
