| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,276 |
| Countries in World War II | 0 | - | 4.53 | 903,698 |
| Battle to Country | 0 | - | 4.91 | 52,456 |
| Important Cities in WWII | 0 | - | 4.42 | 92,834 |
| Independence from Whom | 0 | - | 4.99 | 209,529 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,613 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,947 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,620 |
| Countries by Founding Story | 0 | - | 4.95 | 76,465 |
| Communist Countries in History | 0 | - | 4.63 | 492,179 |
| Recently Independent Countries | 0 | - | 4.98 | 157,895 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,358 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 192,960 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,643 |
| Countries by Former Name | 0 | - | 4.99 | 124,181 |
| Historical City to Country | 0 | - | 4.84 | 78,092 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,868,361 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,114 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,090 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,193 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,196 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,536 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,504 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,739 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,135 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,774 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,302 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,247 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,831 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,208 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,637 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,501 |
| Landlocked Countries | 0 | - | 4.99 | 413,059 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,910 |
| Orthodox Countries | 0 | - | 4.91 | 130,283 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,339 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,940 |
| Monarchies of Europe | 0 | - | 4.90 | 97,236 |
| Monarchies of Asia | 0 | - | 4.97 | 70,547 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,394 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,711,341 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,503 |
| Cities Bombed During WWII | 0 | - | 4.08 | 29,884 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,694 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,128 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,310 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,172 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,021 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,183 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,050 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,459 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,235 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,901 |
| Countries by Independence Day | 0 | - | 4.56 | 52,587 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,100 |
| Island Countries | 0 | - | 4.99 | 707,335 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,334 |
| Himalayan Countries | 0 | - | 4.95 | 135,123 |
| Andean Countries | 0 | - | 4.94 | 82,705 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,123 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,043 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,798 |
| Former Countries by Capital | 0 | - | 4.45 | 126,977 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,502 |
| Danube Countries | 0 | - | 4.97 | 71,016 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,677 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,476 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,335 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,248 |
| European Landlocked Countries | 0 | - | 4.99 | 145,689 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,087 |
| Countries with the Most Species | 0 | - | 4.99 | 95,207 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,243 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,182 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,341 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,918 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,533 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,890 |
| Countries in the Alps | 0 | - | 4.87 | 116,718 |
| Former Countries | 0 | - | 4.75 | 132,605 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,499 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,125 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,960 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,347 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,079 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,945 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,495 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,702 |
| Largest Country by Body of Water | 0 | - | 4.95 | 56,690 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,992 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,174 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,006 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,390 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,695 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,696 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,927 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,583 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,212 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,708 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,939 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,431 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,555 |
| Largest Countries By Category | 0 | - | 4.97 | 156,659 |
| Countries by Countries | 0 | - | 4.96 | 62,189 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,609 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,212 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,264 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,940 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,309 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,684 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,614 |
| Northernmost Countries | 0 | - | 4.99 | 357,367 |
| Political Movements by Country | 0 | - | 4.46 | 72,235 |
| Countries of South America | 0 | - | 5.00 | 913,735 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,077 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,951 |
| "Land" Countries | 0 | - | 4.98 | 333,474 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,054 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,136 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,067 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,613 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,057 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,254 |
| WWII First Names | 0 | - | 4.45 | 41,540 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,155 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,871 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,333 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,915 |
| Countries with Megacities | 0 | - | 4.99 | 246,320 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,841 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,760 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,292 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,700 |
| Countries by Official Language | 0 | - | 4.95 | 192,628 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,939 |
| Countries in their Native Language | 0 | - | 4.99 | 196,506 |
| Subdivisions by Country | 0 | - | 4.86 | 50,039 |
| Megadiverse Countries | 0 | - | 4.97 | 133,841 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,681 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,887 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,382 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,844 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,571 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,079 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,187 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,723 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,435 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,375 |
| Hindu Countries | 0 | - | 4.85 | 49,459 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,449 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,463 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,621 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,991 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,401 |
| World Map Quiz | 0 | - | 4.81 | 63,399 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,336 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,243 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,437 |
| Countries by Road Signs | 0 | - | 4.98 | 53,023 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,202 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,906 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,873 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,556 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,790 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,990 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,194 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,894 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,280 |
| Widest Countries East to West | 0 | - | 4.92 | 128,543 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,197 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,116 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,532 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,638 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,536 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,965 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,036 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,555 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,669 |
| Countries with Double Letters | 0 | - | 4.97 | 93,255 |
| Countries that End in N | 0 | - | 4.94 | 156,328 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,536 |
| Countries with Six Letters | 0 | - | 4.93 | 210,235 |
| Countries with W | 0 | - | 4.97 | 158,140 |
| Countries with Z | 0 | - | 4.98 | 287,686 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,450 |
| Countries That End in U | 0 | - | 4.95 | 119,465 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,403 |
| Countries that End in O | 0 | - | 4.92 | 158,494 |
| Countries that End in R | 0 | - | 4.86 | 118,221 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,819 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,897 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,201 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,407 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,590 |
| Countries That End in Y | 0 | - | 4.90 | 185,166 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,206 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,578 |
| Countries that End in I | 0 | - | 4.94 | 134,330 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,051 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,153 |
