| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,266,772 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 737,733 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 344,241 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,431 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,169,112 |
| Biggest Countries by Area | 0 | - | 4.99 | 829,936 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,781 |
| Island Countries Quiz | 0 | - | 4.99 | 577,780 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,636 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,932 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,416 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 353,133 |
| Countries That Border Russia | 0 | - | 4.98 | 368,750 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,755 |
| Communist Countries in History | 0 | - | 4.48 | 384,116 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,859 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,321 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,476 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 307,035 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,352 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,058 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,539 |
| One Border Countries | 0 | - | 4.98 | 359,730 |
| EU Countries Quiz | 0 | - | 4.99 | 207,205 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,481,042 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,256,290 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,589 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,952 |
| Countries that Start with A | 0 | - | 4.96 | 1,633,500 |
| Countries that Start with B | 0 | - | 4.94 | 1,771,074 |
| Countries that Start with C | 0 | - | 4.95 | 1,403,319 |
| Countries that Start with D | 0 | - | 4.96 | 465,259 |
| Countries that Start with E | 0 | - | 4.93 | 1,035,157 |
| Countries that Start with G | 0 | - | 4.95 | 1,132,963 |
| Countries that Start with H | 0 | - | 4.93 | 392,050 |
| Countries that Start with I | 0 | - | 4.91 | 978,821 |
| Countries that Start with J | 0 | - | 4.96 | 395,385 |
| Countries that Start with K | 0 | - | 4.95 | 573,822 |
| Countries that Start with L | 0 | - | 4.98 | 815,535 |
| Countries that Start with N | 0 | - | 4.90 | 836,972 |
| Countries that Start with P | 0 | - | 4.94 | 924,768 |
| Countries that Start with R | 0 | - | 4.42 | 301,010 |
| Countries that Start with S | 0 | - | 4.96 | 1,359,761 |
| Countries that Start with T | 0 | - | 4.89 | 760,823 |
| Countries that Start with U | 0 | - | 4.97 | 686,426 |
| Countries that Start with V | 0 | - | 4.97 | 457,337 |
| Countries that Start with F | 0 | - | 4.76 | 425,393 |
| Countries that Start with M | 0 | - | 4.96 | 1,062,961 |
| Countries that Border China | 0 | - | 4.97 | 212,369 |
| Countries in World War II | 0 | - | 4.48 | 682,081 |
| Countries in World War I | 0 | - | 4.91 | 183,200 |
| Countries with Four Letters | 0 | - | 4.99 | 321,680 |
| Countries of Africa | 0 | - | 5.00 | 1,740,628 |
| Countries of South America | 0 | - | 5.00 | 625,761 |
| Countries of North America Quiz | 0 | - | 5.00 | 709,325 |
| Countries of Oceania | 0 | - | 5.00 | 715,638 |
| Vietnam War Countries | 0 | - | 4.78 | 76,843 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,691 |
| Countries Bordering France | 0 | - | 4.90 | 309,755 |
| Countries Bordering Germany | 0 | - | 4.99 | 293,167 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,346 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,518 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,348 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,181 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,532 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,223 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,808 |
| Independence from Whom | 0 | - | 4.99 | 153,145 |
| Countries with Z | 0 | - | 4.99 | 223,333 |
| Holy Roman Empire Countries | 0 | - | 4.58 | 37,607 |
| Political Movements by Country | 0 | - | 4.50 | 62,046 |
| "Land" Countries | 0 | - | 4.98 | 265,408 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,897 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 218,116 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,616 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,753 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 247,139 |
| Former Countries by Capital | 0 | - | 4.41 | 97,479 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,256 |
| Biggest Cities in History | 0 | - | 4.47 | 70,737 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,714 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,872 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,459 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,479 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,956 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,297 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,277 |
| Historical City to Country | 0 | - | 4.81 | 66,482 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,033 |
| Countries in the Ottoman Empire | 0 | - | 4.93 | 50,807 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,913 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 343,208 |
| WWII Geography | 0 | - | 4.74 | 89,066 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,337,379 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,123 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,315 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,889 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,095 |
| Former Countries | 0 | - | 4.53 | 100,516 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,443 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,937 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,861 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,720 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 57,071 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,337 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,741 |
| Biggest Axis-Controlled Cities | 0 | - | 4.24 | 31,542 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 999,117 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,893 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,897 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 111,037 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.58 | 68,455 |
| Every Country Shape | 0 | - | 4.99 | 314,397 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,886,162 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,417 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,945 |
| Countries with Megacities | 0 | - | 4.99 | 176,293 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,610 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,599 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,483 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,622 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,653,588 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 214,602 |
| Biggest World Cities in 1850 | 0 | - | 4.53 | 47,641 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,148 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,820 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,749 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,136 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,407 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,727 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,668 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,757 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,187 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,768 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 125,109 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,890 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,994 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,566 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 48,011 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,580 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,105 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,606 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,771 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,100 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,191 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,610 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,170 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,794 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,613 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,400 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,470 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 48,024 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,232 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,341 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,411 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,824 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,137 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,460 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.72 | 61,946 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,400 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,212 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,515 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 40,161 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,049 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,212 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,750 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 45,012 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 248,777 |
| Country by Photo of its Leader #1 | 0 | - | 4.74 | 80,825 |
| Roman Provinces on a Map | 0 | - | 4.73 | 25,770 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,651 |
| Random Flag to Country | 0 | - | 4.99 | 389,155 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,101 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,283 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,098,102 |
| Countries of the German Empire | 0 | - | 4.36 | 26,710 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,390 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,765 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,082 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,283 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,962 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,605 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,558 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,760 |
| Battle to Country | 0 | - | 4.89 | 30,644 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,994 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,123 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,725 |
| Countries by Former Name | 0 | - | 4.98 | 82,785 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,922 |
| Random European Countries on a Map | 0 | - | 4.98 | 213,263 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,529,485 |
| Vatican City Country Quiz | 0 | - | 4.44 | 31,938 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 261,707 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 381,717 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,656 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 37,059 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,870 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 28,693 |
| Countries by Population Range - Tile Select | 0 | - | 4.82 | 43,678 |
