| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,987 |
| Countries in World War II | 0 | - | 4.54 | 912,552 |
| Battle to Country | 0 | - | 4.91 | 53,321 |
| Important Cities in WWII | 0 | - | 4.42 | 93,462 |
| Independence from Whom | 0 | - | 4.99 | 211,669 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,946 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,463 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,189 |
| Countries by Founding Story | 0 | - | 4.95 | 77,199 |
| Communist Countries in History | 0 | - | 4.63 | 495,653 |
| Recently Independent Countries | 0 | - | 4.98 | 159,209 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,860 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,190 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,788 |
| Countries by Former Name | 0 | - | 4.99 | 125,106 |
| Historical City to Country | 0 | - | 4.84 | 78,530 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,442,432 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,386 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,597 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,259 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,187 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,730 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,244 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,528 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,228 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,417 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,151 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,500 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,177 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,161 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,718 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,728 |
| Landlocked Countries | 0 | - | 4.99 | 420,254 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,384 |
| Orthodox Countries | 0 | - | 4.92 | 131,910 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,575 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,845 |
| Monarchies of Europe | 0 | - | 4.90 | 98,130 |
| Monarchies of Asia | 0 | - | 4.97 | 71,083 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,878 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,766,253 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,698 |
| Cities Bombed During WWII | 0 | - | 4.08 | 30,154 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,966 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,366 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,580 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 134,313 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,158 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,099 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,984 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,956 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,104 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,983 |
| Countries by Independence Day | 0 | - | 4.61 | 52,734 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,121 |
| Island Countries | 0 | - | 4.99 | 710,301 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,616 |
| Himalayan Countries | 0 | - | 4.95 | 138,017 |
| Andean Countries | 0 | - | 4.95 | 84,217 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,434 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,229 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,083 |
| Former Countries by Capital | 0 | - | 4.45 | 127,467 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,525 |
| Danube Countries | 0 | - | 4.97 | 71,802 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,744 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,190 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,919 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,280 |
| European Landlocked Countries | 0 | - | 4.99 | 146,941 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,333 |
| Countries with the Most Species | 0 | - | 4.99 | 103,069 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,500 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,490 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,645 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,425 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,107 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,493 |
| Countries in the Alps | 0 | - | 4.87 | 117,932 |
| Former Countries | 0 | - | 4.75 | 133,779 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 98,866 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,654 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,532 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,426 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,273 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,821 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,446 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,318 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,061 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,681 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,553 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,409 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,052 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,330 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,343 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,483 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,157 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,669 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,780 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,058 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,613 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,084 |
| Largest Countries By Category | 0 | - | 4.97 | 157,883 |
| Countries by Countries | 0 | - | 4.97 | 62,986 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,379,135 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,651 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,434 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,207 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,504 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,483 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,634 |
| Northernmost Countries | 0 | - | 4.99 | 361,130 |
| Political Movements by Country | 0 | - | 4.46 | 72,525 |
| Countries of South America | 0 | - | 5.00 | 924,812 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,679 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,871,273 |
| "Land" Countries | 0 | - | 4.98 | 336,133 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,949 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,262 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,702 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,253 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,807 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,907 |
| WWII First Names | 0 | - | 4.44 | 41,782 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,774 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,405 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,250 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,409 |
| Countries with Megacities | 0 | - | 4.99 | 263,165 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,248 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,220 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,538 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,246 |
| Countries by Official Language | 0 | - | 4.95 | 194,898 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,890 |
| Countries in their Native Language | 0 | - | 4.99 | 198,427 |
| Subdivisions by Country | 0 | - | 4.86 | 50,347 |
| Megadiverse Countries | 0 | - | 4.96 | 134,867 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,760 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,246 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,836 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,056 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,889 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,925 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,553 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,032 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,315 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,786 |
| Hindu Countries | 0 | - | 4.86 | 50,136 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,085 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,856 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,244 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,407 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,600 |
| World Map Quiz | 0 | - | 4.81 | 64,835 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,308 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,173 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,749 |
| Countries by Road Signs | 0 | - | 4.98 | 53,800 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,750 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,073 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,807 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,724 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,687 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,826 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,955 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,342 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,417 |
| Widest Countries East to West | 0 | - | 4.92 | 129,487 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,415 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,141 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,051 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,629 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,393 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,690 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,305 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,758 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,760 |
| Countries with Double Letters | 0 | - | 4.97 | 95,352 |
| Countries that End in N | 0 | - | 4.95 | 170,391 |
| Countries with Five Letters | 0 | - | 4.96 | 281,274 |
| Countries with Six Letters | 0 | - | 4.94 | 212,801 |
| Countries with W | 0 | - | 4.97 | 159,705 |
| Countries with Z | 0 | - | 4.98 | 290,610 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,971 |
| Countries That End in U | 0 | - | 4.95 | 120,514 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,985 |
| Countries that End in O | 0 | - | 4.92 | 159,284 |
| Countries that End in R | 0 | - | 4.87 | 118,804 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,568 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,584 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,316 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,214 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,827 |
| Countries That End in Y | 0 | - | 4.91 | 185,717 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,519 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,598 |
| Countries that End in I | 0 | - | 4.94 | 134,947 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,712 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,664 |
