| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,517,200 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 741,539 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 345,546 |
| Country Shape Quiz #3 | 0 | - | 4.93 | 247,253 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,173,999 |
| Biggest Countries by Area | 0 | - | 4.99 | 833,389 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 296,814 |
| Island Countries Quiz | 0 | - | 4.99 | 580,002 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 295,342 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,657 |
| Majority Muslim Countries | 0 | - | 4.96 | 282,926 |
| Countries with the Most Borders | 0 | - | 4.96 | 319,398 |
| Countries with the Longest Coastlines | 0 | - | 4.86 | 354,079 |
| Countries That Border Russia | 0 | - | 4.98 | 370,352 |
| Countries and Languages Quiz | 0 | - | 4.86 | 216,663 |
| Communist Countries in History | 0 | - | 4.48 | 386,034 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 256,538 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 288,226 |
| Commonwealth of Nations Countries | 0 | - | 4.93 | 206,020 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 308,006 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 302,151 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 133,492 |
| One Border Countries | 0 | - | 4.98 | 361,524 |
| NATO Countries Quiz | 0 | - | 4.97 | 202,872 |
| EU Countries Quiz | 0 | - | 4.99 | 207,916 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,507,950 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,267,774 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 132,001 |
| Countries by Independence Day Quiz | 0 | - | 4.46 | 42,066 |
| Countries that Start with A | 0 | - | 4.96 | 1,642,910 |
| Countries that Start with B | 0 | - | 4.94 | 1,780,570 |
| Countries that Start with C | 0 | - | 4.95 | 1,410,617 |
| Countries that Start with D | 0 | - | 4.96 | 468,962 |
| Countries that Start with E | 0 | - | 4.93 | 1,040,880 |
| Countries that Start with G | 0 | - | 4.95 | 1,139,270 |
| Countries that Start with H | 0 | - | 4.93 | 395,184 |
| Countries that Start with I | 0 | - | 4.91 | 984,025 |
| Countries that Start with J | 0 | - | 4.96 | 398,548 |
| Countries that Start with K | 0 | - | 4.95 | 578,053 |
| Countries that Start with L | 0 | - | 4.98 | 820,202 |
| Countries that Start with N | 0 | - | 4.90 | 841,693 |
| Countries that Start with P | 0 | - | 4.94 | 929,907 |
| Countries that Start with R | 0 | - | 4.42 | 303,578 |
| Countries that Start with S | 0 | - | 4.96 | 1,367,165 |
| Countries that Start with T | 0 | - | 4.89 | 765,320 |
| Countries that Start with U | 0 | - | 4.97 | 690,239 |
| Countries that Start with V | 0 | - | 4.97 | 459,867 |
| Countries that Start with F | 0 | - | 4.77 | 428,656 |
| Countries that Start with M | 0 | - | 4.95 | 1,068,548 |
| Countries that Border China | 0 | - | 4.97 | 213,084 |
| Countries in World War II | 0 | - | 4.48 | 686,211 |
| Countries in World War I | 0 | - | 4.91 | 184,193 |
| Countries with Four Letters | 0 | - | 4.99 | 323,093 |
| Countries of Africa | 0 | - | 5.00 | 1,756,011 |
| Countries of South America | 0 | - | 5.00 | 631,873 |
| Countries of North America Quiz | 0 | - | 5.00 | 715,834 |
| Countries of Oceania | 0 | - | 5.00 | 722,096 |
| Vietnam War Countries | 0 | - | 4.78 | 77,617 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 207,314 |
| Countries Bordering France | 0 | - | 4.90 | 310,980 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 200,578 |
| Countries Bordering Germany | 0 | - | 4.99 | 294,370 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,718 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,919 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 254,098 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,491 |
| Countries of the Soviet Union | 0 | - | 4.99 | 147,284 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,583 |
| Countries by Clue #1 | 0 | - | 4.89 | 196,869 |
| Countries with Five Letters Quiz | 0 | - | 4.93 | 193,231 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 127,463 |
| Independence from Whom | 0 | - | 4.99 | 160,953 |
| Countries with Z | 0 | - | 4.99 | 224,175 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,827 |
| Political Movements by Country | 0 | - | 4.50 | 62,281 |
| "Land" Countries | 0 | - | 4.98 | 266,807 |
| Biggest English Cities by Century | 0 | - | 4.92 | 86,347 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 219,192 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 174,221 |
| Who Controlled These Colonies? | 0 | - | 4.74 | 101,113 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 248,231 |
| Former Countries by Capital | 0 | - | 4.41 | 97,660 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,975 |
| Biggest Cities in History | 0 | - | 4.48 | 71,172 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,970 |
| Inventions by Country #1 | 0 | - | 4.43 | 42,023 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.96 | 58,700 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,782 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 182,891 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,486 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,477 |
| Historical City to Country | 0 | - | 4.81 | 66,728 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,470 |
| Countries in the Ottoman Empire | 0 | - | 4.93 | 51,108 |
| Countries Settled by Vikings | 0 | - | 4.92 | 92,276 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 344,975 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 195,211 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,362,843 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,533 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,816 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 82,226 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,396 |
| Former Countries | 0 | - | 4.52 | 100,918 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,849 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 225,698 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 55,163 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 58,015 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 57,336 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,645 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.65 | 58,995 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 1,004,651 |
| World Map without 12 Countries | 0 | - | 4.96 | 279,690 |
| Largest Cities in Alexander's Empire | 0 | - | 4.42 | 35,782 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 111,763 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.72 | 85,540 |
| Every Country Shape | 0 | - | 4.99 | 316,536 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,905,698 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.80 | 46,565 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 218,856 |
| Countries with Megacities | 0 | - | 4.99 | 177,143 |
| Countries of Europe by Population | 0 | - | 4.98 | 109,188 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 169,707 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 128,175 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 124,283 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,669,322 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 216,621 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,918 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,613 |
| One Country By Letter By Continent | 0 | - | 4.99 | 38,233 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 38,941 |
| Most Populous Countries in 1800 | 0 | - | 4.26 | 33,317 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,863 |
| Countries of Europe After World War II | 0 | - | 4.97 | 144,654 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 113,582 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 86,167 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,478 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 84,166 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 125,754 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 190,736 |
| Most Recently-Settled Countries | 0 | - | 4.90 | 45,056 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 74,295 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,829 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 48,207 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,751 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,482 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,968 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 143,506 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,439 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,590 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 91,202 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 100,454 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,907 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 54,606 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,707 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 48,243 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,596 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,487 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,578 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 117,601 |
| Most-Visited Countries by Popes | 0 | - | 4.45 | 43,411 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,964 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.73 | 62,420 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 86,105 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,610 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,870 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.48 | 40,349 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,157 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,676 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 62,185 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 45,287 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 250,375 |
| Country by Photo of its Leader #1 | 0 | - | 4.74 | 81,135 |
| Countries of the World in 1900 | 0 | - | 4.86 | 53,122 |
| Random Flag to Country | 0 | - | 4.99 | 392,482 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,285 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 148,150 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,105,591 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,650 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 242,192 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,696 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,904 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 106,839 |
| Densest Countries Bordering Each Other | 0 | - | 4.89 | 57,920 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 75,090 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 84,208 |
| Battle to Country | 0 | - | 4.89 | 30,798 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,479 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,832 |
| Countries by Former Name | 0 | - | 4.98 | 83,178 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 59,354 |
| Random European Countries on a Map | 0 | - | 4.98 | 214,516 |
| Random African Countries on a Map | 0 | - | 4.98 | 200,920 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,588,383 |
| Vatican City Country Quiz | 0 | - | 4.46 | 32,137 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 263,774 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 384,288 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,743 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 37,496 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 59,307 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 28,989 |
