| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,326,384 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 738,543 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 344,503 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,596 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,170,096 |
| Biggest Countries by Area | 0 | - | 4.99 | 830,674 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 296,046 |
| Island Countries Quiz | 0 | - | 4.99 | 578,261 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,810 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,347 |
| Majority Muslim Countries | 0 | - | 4.96 | 282,169 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,645 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 353,364 |
| Countries That Border Russia | 0 | - | 4.98 | 369,133 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,909 |
| Communist Countries in History | 0 | - | 4.48 | 384,560 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 256,012 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,515 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,589 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 307,250 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,548 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,152 |
| One Border Countries | 0 | - | 4.98 | 360,143 |
| NATO Countries Quiz | 0 | - | 4.97 | 202,269 |
| EU Countries Quiz | 0 | - | 4.99 | 207,377 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,487,293 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,259,196 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,690 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,970 |
| Countries that Start with A | 0 | - | 4.96 | 1,635,512 |
| Countries that Start with B | 0 | - | 4.94 | 1,773,096 |
| Countries that Start with C | 0 | - | 4.95 | 1,404,884 |
| Countries that Start with D | 0 | - | 4.97 | 466,065 |
| Countries that Start with E | 0 | - | 4.93 | 1,036,394 |
| Countries that Start with G | 0 | - | 4.95 | 1,134,266 |
| Countries that Start with H | 0 | - | 4.93 | 392,724 |
| Countries that Start with I | 0 | - | 4.91 | 979,959 |
| Countries that Start with J | 0 | - | 4.96 | 396,063 |
| Countries that Start with K | 0 | - | 4.95 | 574,728 |
| Countries that Start with L | 0 | - | 4.98 | 816,489 |
| Countries that Start with N | 0 | - | 4.91 | 837,973 |
| Countries that Start with P | 0 | - | 4.94 | 925,894 |
| Countries that Start with R | 0 | - | 4.42 | 301,533 |
| Countries that Start with S | 0 | - | 4.96 | 1,361,364 |
| Countries that Start with T | 0 | - | 4.89 | 761,694 |
| Countries that Start with U | 0 | - | 4.97 | 687,252 |
| Countries that Start with V | 0 | - | 4.97 | 457,882 |
| Countries that Start with F | 0 | - | 4.77 | 426,091 |
| Countries that Start with M | 0 | - | 4.95 | 1,064,070 |
| Countries that Border China | 0 | - | 4.97 | 212,567 |
| Countries in World War II | 0 | - | 4.48 | 683,130 |
| Countries in World War I | 0 | - | 4.91 | 183,437 |
| Countries with Four Letters | 0 | - | 4.99 | 321,991 |
| Countries of Africa | 0 | - | 5.00 | 1,744,100 |
| Countries of South America | 0 | - | 5.00 | 627,194 |
| Countries of North America Quiz | 0 | - | 5.00 | 710,923 |
| Countries of Oceania | 0 | - | 5.00 | 717,207 |
| Vietnam War Countries | 0 | - | 4.78 | 76,930 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,852 |
| Countries Bordering France | 0 | - | 4.90 | 310,027 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 200,113 |
| Countries Bordering Germany | 0 | - | 4.99 | 293,433 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,423 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,618 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,518 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,249 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,713 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,280 |
| Countries by Clue #1 | 0 | - | 4.89 | 196,230 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,718 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 127,085 |
| Independence from Whom | 0 | - | 4.99 | 153,265 |
| Countries with Z | 0 | - | 4.99 | 223,494 |
| Holy Roman Empire Countries | 0 | - | 4.58 | 37,658 |
| Political Movements by Country | 0 | - | 4.50 | 62,084 |
| "Land" Countries | 0 | - | 4.98 | 265,626 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,994 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 218,430 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,741 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,832 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 247,410 |
| Former Countries by Capital | 0 | - | 4.41 | 97,530 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,352 |
| Biggest Cities in History | 0 | - | 4.47 | 70,829 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,779 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,904 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,508 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,550 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 182,193 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,350 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,323 |
| Historical City to Country | 0 | - | 4.81 | 66,530 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,146 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,873 |
| Countries Settled by Vikings | 0 | - | 4.92 | 92,005 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 343,502 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,491 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,343,143 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 129,212 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,411 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,959 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,187 |
| Former Countries | 0 | - | 4.53 | 100,583 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,545 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 225,143 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,920 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,805 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 57,136 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,402 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,791 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 1,000,384 |
| World Map without 12 Countries | 0 | - | 4.96 | 279,063 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,916 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 111,205 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.57 | 77,820 |
| Every Country Shape | 0 | - | 4.99 | 314,790 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,889,784 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,451 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 218,145 |
| Countries with Megacities | 0 | - | 4.99 | 176,479 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,743 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,784 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,667 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,775 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,657,106 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 215,271 |
| Biggest World Cities in 1850 | 0 | - | 4.53 | 47,687 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,296 |
| One Country By Letter By Continent | 0 | - | 4.99 | 37,173 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 38,791 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,164 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,491 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,940 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,845 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,832 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,257 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,865 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 125,192 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 189,166 |
| Most Recently-Settled Countries | 0 | - | 4.90 | 44,931 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 74,073 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,647 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 48,060 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,629 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,184 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,692 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,942 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,187 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,277 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,734 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,915 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,675 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,460 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,528 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 48,081 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,319 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,377 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,456 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,974 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,211 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.96 | 112,561 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.72 | 62,029 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,516 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,312 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,605 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 40,237 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,073 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,302 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,822 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 45,069 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 249,292 |
| Country by Photo of its Leader #1 | 0 | - | 4.74 | 80,903 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,771 |
| Random Flag to Country | 0 | - | 4.99 | 389,723 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,134 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,516 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,099,735 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,440 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 241,137 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,259 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,420 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 106,213 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,651 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,673 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,851 |
| Battle to Country | 0 | - | 4.89 | 30,670 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,196 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,748 |
| Countries by Former Name | 0 | - | 4.98 | 82,875 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 59,005 |
| Random European Countries on a Map | 0 | - | 4.98 | 213,584 |
| Random African Countries on a Map | 0 | - | 4.98 | 199,937 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,542,603 |
| Vatican City Country Quiz | 0 | - | 4.44 | 31,984 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 262,181 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 382,249 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,674 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 37,183 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,968 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 28,782 |
