| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,098 |
| Countries in World War I | 0 | - | 4.88 | 229,115 |
| Countries in World War II | 0 | - | 4.53 | 918,709 |
| Battle to Country | 0 | - | 4.91 | 53,942 |
| Important Cities in WWII | 0 | - | 4.42 | 93,876 |
| Independence from Whom | 0 | - | 4.99 | 213,030 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,415 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,836 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,101 |
| Countries by Founding Story | 0 | - | 4.95 | 77,786 |
| Communist Countries in History | 0 | - | 4.63 | 498,131 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,297 |
| Recently Independent Countries | 0 | - | 4.98 | 160,327 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,258 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,940 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,726 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,115 |
| Countries by Former Name | 0 | - | 4.99 | 125,804 |
| Historical City to Country | 0 | - | 4.85 | 79,011 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.78 | 78,288 |
| WWII First Names | 0 | - | 4.45 | 41,960 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,383 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,875 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,513 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,189 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,511 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,852 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,754 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,867,333 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,072 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,648 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,690 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,088 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,353 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,551 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,232 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,401 |
| Orthodox Countries | 0 | - | 4.92 | 132,781 |
| Countries that Have Won the Most Battles | 0 | - | 4.01 | 39,769 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,472 |
| Monarchies of Europe | 0 | - | 4.90 | 98,853 |
| Monarchies of Asia | 0 | - | 4.97 | 71,495 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,281 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,516 |
| World Leaders of the World Wars | 0 | - | 4.36 | 38,029 |
| Landlocked Countries | 0 | - | 4.99 | 425,642 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,814 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,668 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,317 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,232 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,825 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,477 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,863 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,771 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,732 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,299 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,642 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,622 |
| Island Countries | 0 | - | 4.99 | 712,506 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,164 |
| Himalayan Countries | 0 | - | 4.93 | 140,167 |
| Andean Countries | 0 | - | 4.94 | 85,391 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,543 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,931 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,120 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,395 |
| Danube Countries | 0 | - | 4.97 | 72,358 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,569 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,818 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,082 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,573 |
| European Landlocked Countries | 0 | - | 4.99 | 147,589 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,271 |
| Countries with the Most Species | 0 | - | 4.99 | 103,549 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,381 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,768 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,876 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,829 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,565 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,993 |
| Countries in the Alps | 0 | - | 4.87 | 118,746 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,578 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,830 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,947 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,009 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,934 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,238 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,376 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,845 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,408 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,158 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,855 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,732 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,544 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,770 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,872 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,792 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,596 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 66,418 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,643 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,620 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,105 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,492 |
| Largest Countries By Category | 0 | - | 4.97 | 158,839 |
| Countries by Countries | 0 | - | 4.96 | 63,627 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,293 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 73,021 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,233 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,393 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,664 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,094 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,544 |
| Northernmost Countries | 0 | - | 4.99 | 363,918 |
| Countries of South America | 0 | - | 5.00 | 932,489 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,065 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,765 |
| "Land" Countries | 0 | - | 4.98 | 338,343 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,037 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,981 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,173 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,690 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,292 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,758 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,914 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,439 |
| Countries by Independence Day | 0 | - | 4.62 | 52,859 |
| Former Countries by Capital | 0 | - | 4.45 | 127,803 |
| Former Countries | 0 | - | 4.77 | 134,210 |
| Hindu Countries | 0 | - | 4.87 | 50,570 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,676 |
| Political Movements by Country | 0 | - | 4.46 | 72,769 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,845 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,432 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,848,189 |
| One Border Countries | 0 | - | 4.98 | 471,876 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,824 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,652,031 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,111 |
| Countries with Megacities | 0 | - | 4.99 | 267,035 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,810 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,111 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,129 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,223 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,601 |
| Countries by Official Language | 0 | - | 4.95 | 195,965 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,598 |
| Countries in their Native Language | 0 | - | 4.99 | 199,714 |
| Subdivisions by Country | 0 | - | 4.87 | 50,609 |
| National Founders | 0 | - | 4.40 | 83,973 |
| Megadiverse Countries | 0 | - | 4.96 | 135,270 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,123,116 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,927 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,532 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,254 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,640 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,225 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,869 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,565 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,026 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,251 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,502 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,368 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,440 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,139 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,570 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,831 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,322 |
| World Map Quiz | 0 | - | 4.81 | 65,702 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,169 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,704 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,679 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 83,381 |
| Countries by Road Signs | 0 | - | 4.98 | 54,336 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,226 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,065 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,545 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,541 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,419 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,518 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,718 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,685 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,684 |
| Widest Countries East to West | 0 | - | 4.92 | 130,447 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,595 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,243 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,513 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,056 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,959 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,471 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,498 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,535 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,888 |
| Countries of Africa | 0 | - | 5.00 | 2,559,159 |
| Countries with Double Letters | 0 | - | 4.96 | 97,047 |
| Countries that End in N | 0 | - | 4.95 | 171,902 |
| Countries with Five Letters | 0 | - | 4.96 | 283,728 |
| Countries with Six Letters | 0 | - | 4.94 | 214,444 |
| Countries with W | 0 | - | 4.96 | 160,912 |
| Countries with Z | 0 | - | 4.98 | 292,416 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,270 |
