| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,791 |
| Countries in World War I | 0 | - | 4.88 | 226,946 |
| Battle to Country | 0 | - | 4.91 | 52,708 |
| Important Cities in WWII | 0 | - | 4.42 | 93,028 |
| Independence from Whom | 0 | - | 4.99 | 210,197 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,091 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,139 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,367 |
| Countries by Founding Story | 0 | - | 4.95 | 76,738 |
| Communist Countries in History | 0 | - | 4.63 | 493,430 |
| Recently Independent Countries | 0 | - | 4.98 | 158,233 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,914 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,768 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,491 |
| Countries by Former Name | 0 | - | 4.99 | 124,544 |
| Historical City to Country | 0 | - | 4.84 | 78,247 |
| Cities Bombed During WWII | 0 | - | 4.08 | 29,962 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,071,428 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,690 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,481 |
| WWII First Names | 0 | - | 4.44 | 41,624 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,613 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,555 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,451 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,818 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,705 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,957 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,432 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,014 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,996 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,327 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,268 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,062 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,047 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,803 |
| Landlocked Countries | 0 | - | 4.99 | 415,528 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,409 |
| Orthodox Countries | 0 | - | 4.91 | 130,697 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,422 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,305 |
| Monarchies of Europe | 0 | - | 4.90 | 97,563 |
| Monarchies of Asia | 0 | - | 4.97 | 70,744 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,552 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,732,219 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,920 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,695 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,274 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,752 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,626 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 117,395 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,322 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,473 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,356 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,611 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,959 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,871 |
| Countries by Independence Day | 0 | - | 4.56 | 52,650 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,878 |
| Island Countries | 0 | - | 4.99 | 708,390 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,372 |
| Himalayan Countries | 0 | - | 4.95 | 136,037 |
| Andean Countries | 0 | - | 4.94 | 83,196 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,516 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,674 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,207 |
| Former Countries by Capital | 0 | - | 4.45 | 127,182 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,855 |
| Danube Countries | 0 | - | 4.97 | 71,279 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,019 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,722 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,899 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,844 |
| European Landlocked Countries | 0 | - | 4.99 | 145,984 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,557 |
| Countries with the Most Species | 0 | - | 4.99 | 95,355 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,685 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,274 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,446 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,076 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,725 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,092 |
| Countries in the Alps | 0 | - | 4.86 | 117,149 |
| Former Countries | 0 | - | 4.75 | 132,880 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,771 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,626 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,168 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,603 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,402 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,154 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,820 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,908 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,709 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,220 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,281 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,148 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,630 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,895 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,910 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,496 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,807 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,356 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,057 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,355 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,246 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,741 |
| Largest Countries By Category | 0 | - | 4.97 | 157,061 |
| Countries by Countries | 0 | - | 4.96 | 62,460 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,586 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,384 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,698 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,032 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,384 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,960 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,936 |
| Northernmost Countries | 0 | - | 4.99 | 358,787 |
| Political Movements by Country | 0 | - | 4.46 | 72,347 |
| Countries of South America | 0 | - | 5.00 | 918,095 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,561 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,854,924 |
| "Land" Countries | 0 | - | 4.98 | 334,135 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 80,742 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,368 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,539 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,863 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,299 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,584 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,217 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,444 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,953 |
| Countries with Megacities | 0 | - | 4.99 | 248,302 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,849 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,381 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,238 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,312 |
| Countries by Official Language | 0 | - | 4.95 | 193,222 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,778 |
| Countries in their Native Language | 0 | - | 4.99 | 197,049 |
| Subdivisions by Country | 0 | - | 4.86 | 50,154 |
| Megadiverse Countries | 0 | - | 4.96 | 134,473 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,224 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,027 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,552 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,914 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,899 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,463 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,308 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,789 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,967 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,529 |
| Hindu Countries | 0 | - | 4.86 | 49,737 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,633 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,595 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,805 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,129 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,187 |
| World Map Quiz | 0 | - | 4.81 | 63,833 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,774 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,607 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,017 |
| Countries by Road Signs | 0 | - | 4.98 | 53,288 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,812 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,543 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,266 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,391 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,136 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,330 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,524 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,089 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,544 |
| Widest Countries East to West | 0 | - | 4.92 | 129,044 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,291 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,513 |
| 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 | 93,876 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,855 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,246 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,787 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,647 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,106 |
| Countries with Double Letters | 0 | - | 4.96 | 93,727 |
| Countries that End in N | 0 | - | 4.94 | 157,166 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,077 |
| Countries with Six Letters | 0 | - | 4.93 | 210,743 |
| Countries with W | 0 | - | 4.97 | 158,441 |
| Countries with Z | 0 | - | 4.98 | 288,287 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,791 |
| Countries That End in U | 0 | - | 4.95 | 119,625 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,911 |
| 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 | 154,941 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,450 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,582 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,674 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,228 |
| Countries That End in Y | 0 | - | 4.90 | 185,301 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,648 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,932 |
| Countries that End in I | 0 | - | 4.94 | 134,559 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,515 |
