| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,099,052 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 735,016 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,333 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 245,843 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,165,534 |
| Biggest Countries by Area | 0 | - | 4.99 | 827,323 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.91 | 295,002 |
| Island Countries Quiz | 0 | - | 4.99 | 576,116 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,784 |
| Southernmost Countries of the World | 0 | - | 4.99 | 181,893 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,198 |
| Countries with the Most Borders | 0 | - | 4.96 | 317,477 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,403 |
| Countries That Border Russia | 0 | - | 4.98 | 367,469 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,292 |
| Communist Countries in History | 0 | - | 4.47 | 382,614 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,141 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 286,301 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,997 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,239 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,639 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,698 |
| One Border Countries | 0 | - | 4.98 | 358,343 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,532 |
| EU Countries Quiz | 0 | - | 4.99 | 206,707 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,462,461 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,248,336 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,008 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,868 |
| Countries that Start with A | 0 | - | 4.96 | 1,626,580 |
| Countries that Start with B | 0 | - | 4.94 | 1,764,085 |
| Countries that Start with C | 0 | - | 4.95 | 1,397,826 |
| Countries that Start with D | 0 | - | 4.96 | 462,470 |
| Countries that Start with E | 0 | - | 4.93 | 1,030,801 |
| Countries that Start with G | 0 | - | 4.95 | 1,128,090 |
| Countries that Start with H | 0 | - | 4.92 | 389,646 |
| Countries that Start with I | 0 | - | 4.90 | 975,087 |
| Countries that Start with J | 0 | - | 4.96 | 392,921 |
| Countries that Start with K | 0 | - | 4.95 | 570,683 |
| Countries that Start with L | 0 | - | 4.98 | 811,900 |
| Countries that Start with N | 0 | - | 4.90 | 833,174 |
| Countries that Start with P | 0 | - | 4.94 | 920,808 |
| Countries that Start with R | 0 | - | 4.41 | 299,073 |
| Countries that Start with S | 0 | - | 4.97 | 1,354,170 |
| Countries that Start with T | 0 | - | 4.89 | 757,613 |
| Countries that Start with U | 0 | - | 4.97 | 683,562 |
| Countries that Start with V | 0 | - | 4.97 | 455,393 |
| Countries that Start with F | 0 | - | 4.74 | 422,959 |
| Countries that Start with M | 0 | - | 4.95 | 1,058,645 |
| Countries that Border China | 0 | - | 4.97 | 211,802 |
| Countries in World War II | 0 | - | 4.47 | 678,955 |
| Countries in World War I | 0 | - | 4.92 | 182,544 |
| Countries with Four Letters | 0 | - | 4.99 | 320,719 |
| Countries of Africa | 0 | - | 5.00 | 1,729,756 |
| Countries of South America | 0 | - | 5.00 | 621,536 |
| Countries of North America Quiz | 0 | - | 5.00 | 704,680 |
| Countries of Oceania | 0 | - | 5.00 | 711,020 |
| Vietnam War Countries | 0 | - | 4.78 | 76,561 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 205,997 |
| Countries Bordering France | 0 | - | 4.90 | 308,728 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,230 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,791 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,030 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,223 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,795 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 64,973 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,929 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,891 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,630 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,140 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,449 |
| Independence from Whom | 0 | - | 4.99 | 152,728 |
| Countries with Z | 0 | - | 4.99 | 222,805 |
| Holy Roman Empire Countries | 0 | - | 4.56 | 37,438 |
| Political Movements by Country | 0 | - | 4.49 | 61,870 |
| "Land" Countries | 0 | - | 4.98 | 264,512 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,494 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.94 | 206,504 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,174 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,466 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,393 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,859 |
| Biggest Cities in History | 0 | - | 4.49 | 70,406 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,497 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,763 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,254 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,269 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,329 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,169 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,141 |
| Historical City to Country | 0 | - | 4.81 | 66,307 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,665 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,624 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,686 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 341,986 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,755 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,319,601 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,810 |
| Biggest European Cities by Century | 0 | - | 4.96 | 104,960 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,648 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,873 |
| Former Countries | 0 | - | 4.52 | 100,287 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,156 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,380 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,658 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,499 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,864 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,092 |
| Guerrillas by Country | 0 | - | 4.42 | 34,832 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,564 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 995,617 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,301 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,796 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,536 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.56 | 68,272 |
| Every Country Shape | 0 | - | 4.99 | 312,702 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,873,532 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,300 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,239 |
| Countries with Megacities | 0 | - | 4.99 | 175,112 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,218 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,952 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 126,875 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,085 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,641,800 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 191,300 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,489 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,760 |
| One Country By Letter By Continent | 0 | - | 4.99 | 35,774 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,597 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,000 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,883 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,131 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 111,996 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,477 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 71,927 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,469 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,781 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 187,650 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,762 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,744 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,377 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 47,862 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,456 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,793 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,346 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,220 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 75,880 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 86,905 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,200 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,309 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,435 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,219 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,312 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,856 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,204 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,271 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,340 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,951 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,115 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,547 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 84,942 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 85,930 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,274 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 39,923 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 23,961 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,878 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,399 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,811 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 247,289 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,540 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,221 |
| Random Flag to Country | 0 | - | 4.99 | 387,025 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,959 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,538 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,091,967 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,173 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 239,536 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,649 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,713 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,257 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,419 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,129 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,329 |
| Battle to Country | 0 | - | 4.89 | 30,524 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,900 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,635 |
| Countries by Former Name | 0 | - | 4.99 | 82,475 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,608 |
| Random European Countries on a Map | 0 | - | 4.98 | 212,264 |
| Random African Countries on a Map | 0 | - | 4.98 | 198,730 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,484,758 |
| Vatican City Country Quiz | 0 | - | 4.47 | 31,760 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 259,882 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 379,850 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,576 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,750 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,431 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.73 | 28,481 |
| Countries by Population Range - Tile Select | 0 | - | 4.82 | 43,502 |
