| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,300 |
| Countries in World War I | 0 | - | 4.88 | 226,500 |
| Countries in World War II | 0 | - | 4.53 | 903,788 |
| Battle to Country | 0 | - | 4.91 | 52,464 |
| Important Cities in WWII | 0 | - | 4.42 | 92,842 |
| Independence from Whom | 0 | - | 4.99 | 209,547 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,629 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,956 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,632 |
| Countries by Founding Story | 0 | - | 4.95 | 76,471 |
| Communist Countries in History | 0 | - | 4.63 | 492,225 |
| Recently Independent Countries | 0 | - | 4.98 | 157,907 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,373 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 192,988 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,668 |
| Countries by Former Name | 0 | - | 4.99 | 124,195 |
| Historical City to Country | 0 | - | 4.84 | 78,100 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,269 |
| WWII First Names | 0 | - | 4.44 | 41,540 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,103 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,206 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,200 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,551 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,512 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,741 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,141 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,874,307 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,788 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,322 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,248 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,845 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,224 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,644 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,522 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,325 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,919 |
| Orthodox Countries | 0 | - | 4.91 | 130,296 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,395 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,341 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,955 |
| Monarchies of Europe | 0 | - | 4.90 | 97,244 |
| Monarchies of Asia | 0 | - | 4.97 | 70,556 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,399 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,519 |
| Cities Bombed During WWII | 0 | - | 4.08 | 29,886 |
| Landlocked Countries | 0 | - | 4.99 | 413,113 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,700 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,140 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,318 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,184 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,027 |
| World Map Without 20 Random Countries | 0 | - | 4.99 | 8,218,430 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,711,890 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,189 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,060 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,463 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,296 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,927 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,230 |
| Island Countries | 0 | - | 4.99 | 707,375 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,362 |
| Himalayan Countries | 0 | - | 4.95 | 135,146 |
| Andean Countries | 0 | - | 4.94 | 82,720 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,140 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,065 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,809 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,508 |
| Danube Countries | 0 | - | 4.97 | 71,026 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,685 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,480 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,347 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,270 |
| European Landlocked Countries | 0 | - | 4.99 | 145,694 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,100 |
| Countries with the Most Species | 0 | - | 4.99 | 95,210 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,252 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,186 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,344 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,924 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,537 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,893 |
| Countries in the Alps | 0 | - | 4.87 | 116,737 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,503 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,146 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,965 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,360 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,092 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,952 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,504 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,708 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,796 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,003 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,178 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,009 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,395 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,701 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,697 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,945 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,588 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,216 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,715 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,975 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,461 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,561 |
| Largest Countries By Category | 0 | - | 4.97 | 156,666 |
| Countries by Countries | 0 | - | 4.96 | 62,201 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,761 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,222 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,284 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,943 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,310 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,631 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,697 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,534,760 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,733 |
| Northernmost Countries | 0 | - | 4.99 | 357,409 |
| Countries of South America | 0 | - | 5.00 | 913,841 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,204 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,253 |
| "Land" Countries | 0 | - | 4.98 | 333,490 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,055 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,140 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,077 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,618 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,063 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,163 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,020 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,370 |
| Countries by Independence Day | 0 | - | 4.56 | 52,587 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,118 |
| Former Countries by Capital | 0 | - | 4.45 | 126,990 |
| Former Countries | 0 | - | 4.75 | 132,615 |
| Hindu Countries | 0 | - | 4.85 | 49,480 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,452 |
| Countries in an Egg of the World Map | 0 | - | 4.91 | 63,749 |
| Political Movements by Country | 0 | - | 4.46 | 72,238 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,682 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,403 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,798,697 |
| One Border Countries | 0 | - | 4.98 | 463,826 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,671 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,585,003 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,640 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,935 |
| Countries with Megacities | 0 | - | 4.99 | 246,367 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,860 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,768 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,313 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,713 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,163 |
| Countries by Official Language | 0 | - | 4.95 | 192,644 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,960 |
| Countries in their Native Language | 0 | - | 4.99 | 196,520 |
| Subdivisions by Country | 0 | - | 4.86 | 50,041 |
| National Founders | 0 | - | 4.40 | 83,629 |
| Megadiverse Countries | 0 | - | 4.97 | 133,848 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,884 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,692 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,893 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,556 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,385 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,846 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,577 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,090 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,191 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,726 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,446 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,381 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,454 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,470 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,633 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,996 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,415 |
| World Map Quiz | 0 | - | 4.81 | 63,411 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,366 |
| Countries in Random Rings of the World Map | 0 | - | 4.99 | 85,475 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,252 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,654 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 81,716 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 517,807 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 333,982 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,216 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,916 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,881 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,575 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,802 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,996 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,207 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,900 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,283 |
| Widest Countries East to West | 0 | - | 4.92 | 128,550 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,199 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,128 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,534 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,645 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,549 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,972 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,037 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,276 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,557 |
