| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,268 |
| Countries in World War II | 0 | - | 4.54 | 914,124 |
| Battle to Country | 0 | - | 4.91 | 53,470 |
| Important Cities in WWII | 0 | - | 4.42 | 93,573 |
| Independence from Whom | 0 | - | 4.99 | 211,984 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,654 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,573 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,405 |
| Countries by Founding Story | 0 | - | 4.95 | 77,333 |
| Communist Countries in History | 0 | - | 4.63 | 496,265 |
| Recently Independent Countries | 0 | - | 4.98 | 159,417 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,145 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,611 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,185 |
| Countries by Former Name | 0 | - | 4.99 | 125,277 |
| Historical City to Country | 0 | - | 4.84 | 78,608 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,550,070 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,602 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,806 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,440 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,277 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,869 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,311 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,612 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,377 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,723 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,513 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,552 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,440 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,508 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,949 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,878 |
| Landlocked Countries | 0 | - | 4.99 | 421,552 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,684 |
| Orthodox Countries | 0 | - | 4.92 | 132,178 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,636 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,995 |
| Monarchies of Europe | 0 | - | 4.90 | 98,276 |
| Monarchies of Asia | 0 | - | 4.97 | 71,171 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,975 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,775,739 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,942 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,192 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,183 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,687 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,737 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,195 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,316 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,249 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,169 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,060 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,232 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,388 |
| Countries by Independence Day | 0 | - | 4.61 | 52,772 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,955 |
| Island Countries | 0 | - | 4.99 | 710,895 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,238 |
| Himalayan Countries | 0 | - | 4.95 | 138,531 |
| Andean Countries | 0 | - | 4.93 | 84,506 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,688 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,680 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,317 |
| Former Countries by Capital | 0 | - | 4.45 | 127,558 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,721 |
| Danube Countries | 0 | - | 4.97 | 71,955 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,954 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,374 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,214 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,681 |
| European Landlocked Countries | 0 | - | 4.99 | 147,081 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,553 |
| Countries with the Most Species | 0 | - | 4.99 | 103,191 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,687 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,557 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,700 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,508 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,189 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,611 |
| Countries in the Alps | 0 | - | 4.87 | 118,142 |
| Former Countries | 0 | - | 4.75 | 133,882 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,814 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,962 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,616 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,555 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,442 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,914 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,621 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,454 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,154 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,805 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,627 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,490 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,180 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,430 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,479 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,791 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,273 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 62,993 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,992 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,726 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,974 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,182 |
| Largest Countries By Category | 0 | - | 4.97 | 158,135 |
| Countries by Countries | 0 | - | 4.96 | 63,145 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,382,643 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,745 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,628 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,266 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,554 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,637 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,335 |
| Northernmost Countries | 0 | - | 4.99 | 361,773 |
| Political Movements by Country | 0 | - | 4.46 | 72,594 |
| Countries of South America | 0 | - | 5.00 | 926,737 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,121 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,875,929 |
| "Land" Countries | 0 | - | 4.98 | 337,211 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,296 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,379 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,923 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,371 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,908 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 78,023 |
| WWII First Names | 0 | - | 4.44 | 41,827 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,990 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,496 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,814 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,782 |
| Countries with Megacities | 0 | - | 4.99 | 264,311 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,644 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,408 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,903 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,477 |
| Countries by Official Language | 0 | - | 4.95 | 195,173 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,252 |
| Countries in their Native Language | 0 | - | 4.99 | 198,970 |
| Subdivisions by Country | 0 | - | 4.86 | 50,411 |
| Megadiverse Countries | 0 | - | 4.96 | 134,977 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,010 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,328 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,163 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,091 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,062 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,002 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,624 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,122 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,603 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,851 |
| Hindu Countries | 0 | - | 4.86 | 50,256 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,177 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,940 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,331 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,470 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,056 |
| World Map Quiz | 0 | - | 4.81 | 65,033 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,052 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,308 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,994 |
| Countries by Road Signs | 0 | - | 4.98 | 53,975 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,004 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,231 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,954 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,092 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,842 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,974 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,264 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,416 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,541 |
| Widest Countries East to West | 0 | - | 4.92 | 129,605 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,439 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,334 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,105 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,738 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,550 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,819 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,359 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,791 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,948 |
| Countries with Double Letters | 0 | - | 4.96 | 96,127 |
| Countries that End in N | 0 | - | 4.95 | 171,010 |
| Countries with Five Letters | 0 | - | 4.96 | 282,234 |
| Countries with Six Letters | 0 | - | 4.94 | 213,439 |
| Countries with W | 0 | - | 4.97 | 160,249 |
| Countries with Z | 0 | - | 4.98 | 291,318 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,609 |
| Countries That End in U | 0 | - | 4.95 | 120,801 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,374 |
| Countries that End in O | 0 | - | 4.92 | 159,477 |
| Countries that End in R | 0 | - | 4.87 | 118,940 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,699 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,988 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,627 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,425 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,347 |
| Countries That End in Y | 0 | - | 4.91 | 185,844 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,831 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,801 |
| Countries that End in I | 0 | - | 4.94 | 135,058 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,012 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,785 |
