| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,328 |
| Countries in World War I | 0 | - | 4.88 | 226,526 |
| Countries in World War II | 0 | - | 4.53 | 904,003 |
| Battle to Country | 0 | - | 4.91 | 52,476 |
| Important Cities in WWII | 0 | - | 4.42 | 92,852 |
| Independence from Whom | 0 | - | 4.99 | 209,578 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,661 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,966 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,759 |
| Countries by Founding Story | 0 | - | 4.95 | 76,483 |
| Communist Countries in History | 0 | - | 4.63 | 492,289 |
| Recently Independent Countries | 0 | - | 4.98 | 157,929 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,404 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,031 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,720 |
| Countries by Former Name | 0 | - | 4.99 | 124,218 |
| Historical City to Country | 0 | - | 4.84 | 78,108 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,274 |
| WWII First Names | 0 | - | 4.44 | 41,545 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,126 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,225 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,208 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,555 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,522 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,755 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,150 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,883,989 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,801 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,364 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,255 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,865 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,257 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,655 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,539 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,333 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,944 |
| Orthodox Countries | 0 | - | 4.91 | 130,313 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,410 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,349 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,980 |
| Monarchies of Europe | 0 | - | 4.90 | 97,264 |
| Monarchies of Asia | 0 | - | 4.97 | 70,566 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,412 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,538 |
| Cities Bombed During WWII | 0 | - | 4.08 | 29,892 |
| Landlocked Countries | 0 | - | 4.99 | 413,208 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,710 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,164 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,329 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,192 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,039 |
| World Map Without 20 Random Countries | 0 | - | 4.99 | 8,220,183 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,712,888 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,199 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,076 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,473 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,394 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,984 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,423 |
| Island Countries | 0 | - | 4.99 | 707,424 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,397 |
| Himalayan Countries | 0 | - | 4.95 | 135,175 |
| Andean Countries | 0 | - | 4.94 | 82,740 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,156 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,090 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,824 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,524 |
| Danube Countries | 0 | - | 4.97 | 71,036 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,701 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,492 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,377 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,298 |
| European Landlocked Countries | 0 | - | 4.99 | 145,707 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,125 |
| Countries with the Most Species | 0 | - | 4.99 | 95,219 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,272 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,190 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,352 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,933 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,544 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,908 |
| Countries in the Alps | 0 | - | 4.87 | 116,756 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,516 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,167 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,978 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,376 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,103 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,962 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,517 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,721 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,962 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,013 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,179 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,016 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,405 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,706 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,715 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,970 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,598 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,226 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,726 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,034 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,490 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,569 |
| Largest Countries By Category | 0 | - | 4.97 | 156,682 |
| Countries by Countries | 0 | - | 4.96 | 62,216 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,127 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,234 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,308 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,949 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,311 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,647 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,717 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,535,085 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,893 |
| Northernmost Countries | 0 | - | 4.99 | 357,479 |
| Countries of South America | 0 | - | 5.00 | 914,012 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,434 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,686 |
| "Land" Countries | 0 | - | 4.98 | 333,521 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,062 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,147 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,098 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,634 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,074 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,187 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,240 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,420 |
| Countries by Independence Day | 0 | - | 4.56 | 52,592 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,137 |
| Former Countries by Capital | 0 | - | 4.45 | 127,009 |
| Former Countries | 0 | - | 4.75 | 132,640 |
| Hindu Countries | 0 | - | 4.85 | 49,507 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,464 |
| Countries in an Egg of the World Map | 0 | - | 4.91 | 63,775 |
| Political Movements by Country | 0 | - | 4.46 | 72,242 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,709 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,420 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,799,242 |
| One Border Countries | 0 | - | 4.98 | 463,998 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,683 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,585,708 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,644 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,972 |
| Countries with Megacities | 0 | - | 4.99 | 246,465 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,887 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,785 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,350 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,739 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,251 |
| Countries by Official Language | 0 | - | 4.95 | 192,677 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,999 |
| Countries in their Native Language | 0 | - | 4.99 | 196,544 |
| Subdivisions by Country | 0 | - | 4.86 | 50,045 |
| National Founders | 0 | - | 4.40 | 83,636 |
| Megadiverse Countries | 0 | - | 4.97 | 133,858 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,173 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,719 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,899 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,610 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,399 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,848 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,589 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,108 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,198 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,729 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,474 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,390 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,462 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,482 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,641 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,000 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,443 |
| World Map Quiz | 0 | - | 4.81 | 63,432 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,432 |
| Countries in Random Rings of the World Map | 0 | - | 4.99 | 85,494 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,276 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,661 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 81,737 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 517,997 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 334,053 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,246 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,927 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,893 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,608 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,814 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,019 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,224 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,909 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,296 |
| Widest Countries East to West | 0 | - | 4.92 | 128,561 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,206 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,152 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,541 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,658 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,576 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,993 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,045 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,350 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,557 |
