| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,256,697 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 737,581 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 344,192 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,405 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,168,914 |
| Biggest Countries by Area | 0 | - | 4.99 | 829,785 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,724 |
| Island Countries Quiz | 0 | - | 4.99 | 577,683 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,604 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,250 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,875 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,364 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 353,079 |
| Countries That Border Russia | 0 | - | 4.98 | 368,674 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,728 |
| Communist Countries in History | 0 | - | 4.48 | 384,005 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,833 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,279 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,451 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,986 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,303 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,046 |
| One Border Countries | 0 | - | 4.98 | 359,680 |
| NATO Countries Quiz | 0 | - | 4.97 | 202,063 |
| EU Countries Quiz | 0 | - | 4.99 | 207,175 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,480,077 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,255,902 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,569 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,950 |
| Countries that Start with A | 0 | - | 4.96 | 1,633,062 |
| Countries that Start with B | 0 | - | 4.94 | 1,770,638 |
| Countries that Start with C | 0 | - | 4.95 | 1,402,947 |
| Countries that Start with D | 0 | - | 4.96 | 465,073 |
| Countries that Start with E | 0 | - | 4.93 | 1,034,847 |
| Countries that Start with G | 0 | - | 4.95 | 1,132,527 |
| Countries that Start with H | 0 | - | 4.93 | 391,870 |
| Countries that Start with I | 0 | - | 4.91 | 978,584 |
| Countries that Start with J | 0 | - | 4.96 | 395,216 |
| Countries that Start with K | 0 | - | 4.95 | 573,605 |
| Countries that Start with L | 0 | - | 4.98 | 815,300 |
| Countries that Start with N | 0 | - | 4.90 | 836,552 |
| Countries that Start with P | 0 | - | 4.94 | 924,500 |
| Countries that Start with R | 0 | - | 4.42 | 300,884 |
| Countries that Start with S | 0 | - | 4.96 | 1,359,379 |
| Countries that Start with T | 0 | - | 4.89 | 760,622 |
| Countries that Start with U | 0 | - | 4.97 | 686,250 |
| Countries that Start with V | 0 | - | 4.97 | 457,214 |
| Countries that Start with F | 0 | - | 4.76 | 425,220 |
| Countries that Start with M | 0 | - | 4.96 | 1,062,635 |
| Countries that Border China | 0 | - | 4.97 | 212,341 |
| Countries in World War II | 0 | - | 4.48 | 681,913 |
| Countries in World War I | 0 | - | 4.91 | 183,163 |
| Countries with Four Letters | 0 | - | 4.99 | 321,603 |
| Countries of Africa | 0 | - | 5.00 | 1,740,080 |
| Countries of South America | 0 | - | 5.00 | 625,576 |
| Countries of North America Quiz | 0 | - | 5.00 | 709,083 |
| Countries of Oceania | 0 | - | 5.00 | 715,386 |
| Vietnam War Countries | 0 | - | 4.78 | 76,821 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,665 |
| Countries Bordering France | 0 | - | 4.90 | 309,702 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,940 |
| Countries Bordering Germany | 0 | - | 4.99 | 293,109 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,329 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,501 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,311 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,167 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,490 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,207 |
| Countries by Clue #1 | 0 | - | 4.89 | 196,044 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,536 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,766 |
| Independence from Whom | 0 | - | 4.99 | 153,114 |
| Countries with Z | 0 | - | 4.99 | 223,296 |
| Holy Roman Empire Countries | 0 | - | 4.58 | 37,600 |
| Political Movements by Country | 0 | - | 4.50 | 62,035 |
| "Land" Countries | 0 | - | 4.98 | 265,368 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,872 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 218,043 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,594 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,742 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 247,101 |
| Former Countries by Capital | 0 | - | 4.41 | 97,470 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,237 |
| Biggest Cities in History | 0 | - | 4.47 | 70,728 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,703 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,868 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,448 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,468 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,924 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,287 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,266 |
| Historical City to Country | 0 | - | 4.81 | 66,470 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,019 |
| Countries in the Ottoman Empire | 0 | - | 4.93 | 50,795 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,909 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 343,129 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,305 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,336,431 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,102 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,296 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,872 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,078 |
| Former Countries | 0 | - | 4.53 | 100,512 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,418 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,898 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,849 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,712 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 57,057 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,317 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,733 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 998,975 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,856 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,891 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 111,021 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.58 | 68,449 |
| Every Country Shape | 0 | - | 4.99 | 314,307 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,885,568 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,414 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,882 |
| Countries with Megacities | 0 | - | 4.99 | 176,246 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,585 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,555 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,445 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,590 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,652,933 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 214,382 |
| Biggest World Cities in 1850 | 0 | - | 4.53 | 47,634 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,133 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,749 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,738 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,128 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,385 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,695 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,643 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,741 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,173 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,760 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 125,091 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,704 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,887 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,987 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,554 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 48,005 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,573 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,075 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,586 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,730 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,087 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,175 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,599 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,772 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,605 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,390 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,455 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 48,011 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,329 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,407 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,812 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,127 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,438 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.72 | 61,926 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,376 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,193 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,501 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 40,092 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,042 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,193 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,728 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,999 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 248,709 |
| Country by Photo of its Leader #1 | 0 | - | 4.74 | 80,808 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,628 |
| Random Flag to Country | 0 | - | 4.99 | 389,039 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,095 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,247 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,097,825 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,377 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,700 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,061 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,259 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,927 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,596 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,540 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,745 |
| Battle to Country | 0 | - | 4.89 | 30,640 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,111 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,719 |
| Countries by Former Name | 0 | - | 4.98 | 82,771 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,900 |
| Random European Countries on a Map | 0 | - | 4.98 | 213,209 |
| Random African Countries on a Map | 0 | - | 4.98 | 199,577 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,526,752 |
| Vatican City Country Quiz | 0 | - | 4.44 | 31,924 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 261,552 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 381,542 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,654 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 37,044 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,850 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 28,679 |
| Countries by Population Range - Tile Select | 0 | - | 4.82 | 43,671 |
