| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,780 |
| Countries in World War II | 0 | - | 4.54 | 906,807 |
| Battle to Country | 0 | - | 4.91 | 52,697 |
| Important Cities in WWII | 0 | - | 4.42 | 93,023 |
| Independence from Whom | 0 | - | 4.99 | 210,179 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,076 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,134 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,346 |
| Countries by Founding Story | 0 | - | 4.95 | 76,729 |
| Communist Countries in History | 0 | - | 4.63 | 493,398 |
| Recently Independent Countries | 0 | - | 4.98 | 158,222 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,895 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,730 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,447 |
| Countries by Former Name | 0 | - | 4.99 | 124,526 |
| Historical City to Country | 0 | - | 4.84 | 78,243 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,064,785 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,679 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,599 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,549 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,443 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,810 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,697 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,956 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,423 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,007 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,979 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,323 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,248 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,029 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,010 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,798 |
| Landlocked Countries | 0 | - | 4.99 | 415,446 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,388 |
| Orthodox Countries | 0 | - | 4.91 | 130,686 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,419 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,297 |
| Monarchies of Europe | 0 | - | 4.90 | 97,556 |
| Monarchies of Asia | 0 | - | 4.97 | 70,742 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,547 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,731,635 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,908 |
| Cities Bombed During WWII | 0 | - | 4.08 | 29,957 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,259 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,731 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,610 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 117,097 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,307 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,464 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,345 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,604 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,896 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,829 |
| Countries by Independence Day | 0 | - | 4.56 | 52,642 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,833 |
| Island Countries | 0 | - | 4.99 | 708,360 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,335 |
| Himalayan Countries | 0 | - | 4.95 | 136,005 |
| Andean Countries | 0 | - | 4.94 | 83,178 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,505 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,644 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,193 |
| Former Countries by Capital | 0 | - | 4.45 | 127,179 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,839 |
| Danube Countries | 0 | - | 4.97 | 71,273 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,009 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,719 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,887 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,833 |
| European Landlocked Countries | 0 | - | 4.99 | 145,977 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,541 |
| Countries with the Most Species | 0 | - | 4.99 | 95,351 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,661 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,272 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,443 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,072 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,720 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,086 |
| Countries in the Alps | 0 | - | 4.86 | 117,136 |
| Former Countries | 0 | - | 4.75 | 132,876 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,766 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,611 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,163 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,597 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,391 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,148 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,813 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,902 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,698 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,213 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,279 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,142 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,626 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,888 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,900 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,482 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,802 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,351 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,042 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,318 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,222 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,736 |
| Largest Countries By Category | 0 | - | 4.97 | 157,043 |
| Countries by Countries | 0 | - | 4.96 | 62,452 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,331 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,381 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,685 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,030 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,382 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,955 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,823 |
| Northernmost Countries | 0 | - | 4.99 | 358,751 |
| Political Movements by Country | 0 | - | 4.46 | 72,346 |
| Countries of South America | 0 | - | 5.00 | 917,966 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,390 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,854,648 |
| "Land" Countries | 0 | - | 4.98 | 334,118 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 80,644 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,353 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,513 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,856 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,285 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,477 |
| WWII First Names | 0 | - | 4.44 | 41,621 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,569 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,074 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,416 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,930 |
| Countries with Megacities | 0 | - | 4.99 | 248,241 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,831 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,372 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,212 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,306 |
| Countries by Official Language | 0 | - | 4.95 | 193,203 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,748 |
| Countries in their Native Language | 0 | - | 4.99 | 197,036 |
| Subdivisions by Country | 0 | - | 4.86 | 50,151 |
| Megadiverse Countries | 0 | - | 4.96 | 134,463 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,205 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,016 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,550 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,908 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,890 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,456 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,304 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,788 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,946 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,525 |
| Hindu Countries | 0 | - | 4.86 | 49,725 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,630 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,590 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,801 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,125 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,167 |
| World Map Quiz | 0 | - | 4.81 | 63,818 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,692 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,595 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,002 |
| Countries by Road Signs | 0 | - | 4.98 | 53,283 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,801 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,532 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,259 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,370 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,124 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,323 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,515 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,084 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,534 |
| Widest Countries East to West | 0 | - | 4.92 | 129,036 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,287 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,501 |
| 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 | 93,870 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,845 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,237 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,744 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,645 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,097 |
| Countries with Double Letters | 0 | - | 4.96 | 93,712 |
| Countries that End in N | 0 | - | 4.94 | 157,159 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,062 |
| Countries with Six Letters | 0 | - | 4.93 | 210,731 |
| Countries with W | 0 | - | 4.97 | 158,435 |
| Countries with Z | 0 | - | 4.98 | 288,275 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,777 |
| Countries That End in U | 0 | - | 4.95 | 119,623 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,897 |
| Countries that End in O | 0 | - | 4.92 | 158,668 |
| Countries that End in R | 0 | - | 4.87 | 118,384 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,940 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,441 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,575 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,664 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,214 |
| Countries That End in Y | 0 | - | 4.90 | 185,295 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,636 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,919 |
| Countries that End in I | 0 | - | 4.94 | 134,550 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,496 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,314 |
