| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 33,969,241 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 732,903 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 342,620 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 245,391 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,162,715 |
| Biggest Countries by Area | 0 | - | 4.99 | 825,188 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.91 | 294,401 |
| Island Countries Quiz | 0 | - | 4.99 | 574,744 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,360 |
| Southernmost Countries of the World | 0 | - | 4.99 | 181,406 |
| Majority Muslim Countries | 0 | - | 4.96 | 280,624 |
| Countries with the Most Borders | 0 | - | 4.96 | 316,767 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 351,818 |
| Countries That Border Russia | 0 | - | 4.98 | 366,499 |
| Countries and Languages Quiz | 0 | - | 4.86 | 214,929 |
| Communist Countries in History | 0 | - | 4.47 | 381,457 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 254,600 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 285,756 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,715 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 305,642 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,102 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 132,424 |
| One Border Countries | 0 | - | 4.98 | 357,243 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,058 |
| EU Countries Quiz | 0 | - | 4.99 | 206,209 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,448,149 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,242,025 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 130,740 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,801 |
| Countries that Start with A | 0 | - | 4.96 | 1,620,820 |
| Countries that Start with B | 0 | - | 4.94 | 1,758,342 |
| Countries that Start with C | 0 | - | 4.95 | 1,393,242 |
| Countries that Start with D | 0 | - | 4.96 | 460,084 |
| Countries that Start with E | 0 | - | 4.93 | 1,027,100 |
| Countries that Start with G | 0 | - | 4.95 | 1,124,191 |
| Countries that Start with H | 0 | - | 4.92 | 387,625 |
| Countries that Start with I | 0 | - | 4.90 | 971,893 |
| Countries that Start with J | 0 | - | 4.96 | 390,916 |
| Countries that Start with K | 0 | - | 4.94 | 567,691 |
| Countries that Start with L | 0 | - | 4.98 | 809,080 |
| Countries that Start with N | 0 | - | 4.90 | 830,313 |
| Countries that Start with P | 0 | - | 4.94 | 917,499 |
| Countries that Start with R | 0 | - | 4.40 | 297,393 |
| Countries that Start with S | 0 | - | 4.96 | 1,349,725 |
| Countries that Start with T | 0 | - | 4.88 | 754,918 |
| Countries that Start with U | 0 | - | 4.97 | 681,159 |
| Countries that Start with V | 0 | - | 4.97 | 453,753 |
| Countries that Start with F | 0 | - | 4.73 | 420,803 |
| Countries that Start with M | 0 | - | 4.95 | 1,055,293 |
| Countries that Border China | 0 | - | 4.97 | 211,061 |
| Countries in World War II | 0 | - | 4.47 | 676,460 |
| Countries in World War I | 0 | - | 4.92 | 181,973 |
| Countries with Four Letters | 0 | - | 4.99 | 319,929 |
| Countries of Africa | 0 | - | 5.00 | 1,721,082 |
| Countries of South America | 0 | - | 5.00 | 618,422 |
| Countries of North America Quiz | 0 | - | 5.00 | 701,291 |
| Countries of Oceania | 0 | - | 5.00 | 707,296 |
| Vietnam War Countries | 0 | - | 4.78 | 76,361 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 205,628 |
| Countries Bordering France | 0 | - | 4.90 | 307,975 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 198,812 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,024 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 69,764 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,009 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,363 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 64,812 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,488 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,585 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,210 |
| Countries with Five Letters Quiz | 0 | - | 4.93 | 191,736 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,187 |
| Independence from Whom | 0 | - | 4.99 | 152,392 |
| Countries with Z | 0 | - | 4.99 | 222,383 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,328 |
| Political Movements by Country | 0 | - | 4.49 | 61,707 |
| "Land" Countries | 0 | - | 4.98 | 258,589 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,202 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 202,098 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 172,528 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,007 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 245,778 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,543 |
| Biggest Cities in History | 0 | - | 4.49 | 70,070 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,338 |
| Inventions by Country #1 | 0 | - | 4.42 | 41,667 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,089 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,113 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 180,549 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,054 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,027 |
| Historical City to Country | 0 | - | 4.81 | 66,177 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,368 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,442 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,507 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 341,115 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,327 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.93 | 4,303,677 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,528 |
| Biggest European Cities by Century | 0 | - | 4.97 | 104,698 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,459 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,722 |
| Former Countries | 0 | - | 4.56 | 100,097 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 112,696 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 223,898 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,435 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,302 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,669 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.91 | 58,910 |
| Guerrillas by Country | 0 | - | 4.42 | 34,742 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,435 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 992,972 |
| World Map without 12 Countries | 0 | - | 4.96 | 277,838 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,728 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,155 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.57 | 68,108 |
| Every Country Shape | 0 | - | 4.99 | 311,374 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,862,137 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,218 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 216,685 |
| Countries with Megacities | 0 | - | 4.99 | 158,066 |
| Countries of Europe by Population | 0 | - | 4.98 | 107,885 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,110 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 126,482 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 122,363 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,633,078 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 190,526 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,384 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,530 |
| One Country By Letter By Continent | 0 | - | 4.99 | 34,850 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.84 | 38,477 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 32,862 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,577 |
| Countries of Europe After World War II | 0 | - | 4.97 | 142,571 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 111,406 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,244 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 71,754 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,217 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,509 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 186,713 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,679 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,581 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,229 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 47,736 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,347 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,547 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,158 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 141,778 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 75,702 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 86,646 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 89,905 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 98,982 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,239 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,056 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,161 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,708 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 97,496 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,096 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,164 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 115,891 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,684 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.96 | 111,814 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,215 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 84,567 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 85,296 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,063 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 39,833 |
| 2017 News Stories - Name the Country | 0 | - | 4.47 | 23,880 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,600 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,099 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,641 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 246,371 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,305 |
| Countries of the World in 1900 | 0 | - | 4.87 | 51,918 |
| Random Flag to Country | 0 | - | 4.99 | 385,393 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,868 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,062 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,088,178 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,045 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 238,704 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,291 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,325 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 104,714 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,281 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 73,768 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,128 |
| Battle to Country | 0 | - | 4.89 | 30,423 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,674 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,570 |
| Countries by Former Name | 0 | - | 4.99 | 82,243 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,377 |
| Random European Countries on a Map | 0 | - | 4.98 | 211,450 |
| Random African Countries on a Map | 0 | - | 4.98 | 197,866 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,451,856 |
| Vatican City Country Quiz | 0 | - | 4.47 | 31,605 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 258,206 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 378,194 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,500 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,464 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,192 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.73 | 28,289 |
