| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,122,731 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 735,410 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,476 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 245,940 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,166,038 |
| Biggest Countries by Area | 0 | - | 4.99 | 827,666 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,116 |
| Island Countries Quiz | 0 | - | 4.99 | 576,359 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,862 |
| Southernmost Countries of the World | 0 | - | 4.99 | 181,938 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,306 |
| Countries with the Most Borders | 0 | - | 4.96 | 317,615 |
| Countries with the Longest Coastlines | 0 | - | 4.86 | 352,503 |
| Countries That Border Russia | 0 | - | 4.98 | 367,623 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,351 |
| Communist Countries in History | 0 | - | 4.47 | 382,828 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,254 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 286,404 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,053 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,339 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,739 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,748 |
| One Border Countries | 0 | - | 4.98 | 358,539 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,622 |
| EU Countries Quiz | 0 | - | 4.99 | 206,764 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,465,039 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,249,485 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,052 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,877 |
| Countries that Start with A | 0 | - | 4.96 | 1,627,556 |
| Countries that Start with B | 0 | - | 4.94 | 1,765,084 |
| Countries that Start with C | 0 | - | 4.95 | 1,398,638 |
| Countries that Start with D | 0 | - | 4.96 | 462,877 |
| Countries that Start with E | 0 | - | 4.93 | 1,031,416 |
| Countries that Start with G | 0 | - | 4.95 | 1,128,729 |
| Countries that Start with H | 0 | - | 4.92 | 390,003 |
| Countries that Start with I | 0 | - | 4.90 | 975,619 |
| Countries that Start with J | 0 | - | 4.96 | 393,296 |
| Countries that Start with K | 0 | - | 4.94 | 571,145 |
| Countries that Start with L | 0 | - | 4.98 | 812,427 |
| Countries that Start with N | 0 | - | 4.90 | 833,712 |
| Countries that Start with P | 0 | - | 4.94 | 921,399 |
| Countries that Start with R | 0 | - | 4.41 | 299,397 |
| Countries that Start with S | 0 | - | 4.97 | 1,354,976 |
| Countries that Start with T | 0 | - | 4.89 | 758,134 |
| Countries that Start with U | 0 | - | 4.97 | 684,031 |
| Countries that Start with V | 0 | - | 4.97 | 455,699 |
| Countries that Start with F | 0 | - | 4.76 | 423,353 |
| Countries that Start with M | 0 | - | 4.95 | 1,059,250 |
| Countries that Border China | 0 | - | 4.97 | 211,873 |
| Countries in World War II | 0 | - | 4.47 | 679,393 |
| Countries in World War I | 0 | - | 4.92 | 182,646 |
| Countries with Four Letters | 0 | - | 4.99 | 320,841 |
| Countries of Africa | 0 | - | 5.00 | 1,731,437 |
| Countries of South America | 0 | - | 5.00 | 622,192 |
| Countries of North America Quiz | 0 | - | 5.00 | 705,467 |
| Countries of Oceania | 0 | - | 5.00 | 711,674 |
| Vietnam War Countries | 0 | - | 4.78 | 76,608 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,065 |
| Countries Bordering France | 0 | - | 4.90 | 308,848 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,303 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,935 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,075 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,263 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,874 |
| Countries "Ruled" by King Charles III | 0 | - | 4.73 | 65,001 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,013 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,936 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,697 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,194 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,496 |
| Independence from Whom | 0 | - | 4.99 | 152,794 |
| Countries with Z | 0 | - | 4.99 | 222,862 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,458 |
| Political Movements by Country | 0 | - | 4.49 | 61,891 |
| "Land" Countries | 0 | - | 4.98 | 264,705 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,557 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.94 | 206,926 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,233 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,513 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,516 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,915 |
| Biggest Cities in History | 0 | - | 4.49 | 70,463 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,531 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,781 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,276 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,302 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,436 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,180 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,154 |
| Historical City to Country | 0 | - | 4.81 | 66,332 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,716 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,651 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,717 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 342,168 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,834 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,322,212 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,845 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,007 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,685 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,903 |
| Former Countries | 0 | - | 4.52 | 100,306 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,200 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,462 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,684 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,527 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,895 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,128 |
| Guerrillas by Country | 0 | - | 4.39 | 34,847 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,585 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 996,081 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,391 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,807 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,625 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.56 | 68,291 |
| Every Country Shape | 0 | - | 4.99 | 312,963 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,875,198 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,308 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,357 |
| Countries with Megacities | 0 | - | 4.99 | 175,490 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,269 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,054 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 126,926 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,227 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,643,404 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 191,458 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,514 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,818 |
| One Country By Letter By Continent | 0 | - | 4.99 | 35,929 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,626 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,016 |
| Most Populous Countries by Year | 0 | - | 4.76 | 78,930 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,241 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,107 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,523 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 71,963 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,526 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,834 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 187,820 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,779 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,786 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,396 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 47,890 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,477 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,834 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,377 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,300 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 75,900 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 86,941 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,273 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,381 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,458 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,246 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,341 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,877 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,914 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,224 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,297 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,402 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,980 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,179 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,610 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,026 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 85,970 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,315 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 39,944 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 23,973 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,940 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,451 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,830 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 247,438 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,584 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,268 |
| Random Flag to Country | 0 | - | 4.99 | 387,314 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,980 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,648 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,092,744 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,195 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 239,689 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,703 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,791 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,360 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,449 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,202 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,357 |
| Battle to Country | 0 | - | 4.89 | 30,544 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,928 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,649 |
| Countries by Former Name | 0 | - | 4.99 | 82,514 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,648 |
| Random European Countries on a Map | 0 | - | 4.98 | 212,471 |
| Random African Countries on a Map | 0 | - | 4.98 | 198,878 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,491,140 |
| Vatican City Country Quiz | 0 | - | 4.47 | 31,781 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 260,121 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 380,202 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,591 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,797 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,512 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 28,505 |
