| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,273,446 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 737,834 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 344,274 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,452 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,169,215 |
| Biggest Countries by Area | 0 | - | 4.99 | 830,019 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,806 |
| Island Countries Quiz | 0 | - | 4.99 | 577,817 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,655 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,270 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,973 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,455 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 353,167 |
| Countries That Border Russia | 0 | - | 4.98 | 368,793 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,769 |
| Communist Countries in History | 0 | - | 4.48 | 384,160 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,879 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,346 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,488 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 307,058 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,372 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,067 |
| One Border Countries | 0 | - | 4.98 | 359,788 |
| NATO Countries Quiz | 0 | - | 4.97 | 202,110 |
| EU Countries Quiz | 0 | - | 4.99 | 207,224 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,481,743 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,256,618 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,595 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,953 |
| Countries that Start with A | 0 | - | 4.96 | 1,633,744 |
| Countries that Start with B | 0 | - | 4.94 | 1,771,301 |
| Countries that Start with C | 0 | - | 4.95 | 1,403,517 |
| Countries that Start with D | 0 | - | 4.96 | 465,360 |
| Countries that Start with E | 0 | - | 4.93 | 1,035,317 |
| Countries that Start with G | 0 | - | 4.95 | 1,133,124 |
| Countries that Start with H | 0 | - | 4.93 | 392,142 |
| Countries that Start with I | 0 | - | 4.91 | 978,945 |
| Countries that Start with J | 0 | - | 4.96 | 395,467 |
| Countries that Start with K | 0 | - | 4.95 | 573,926 |
| Countries that Start with L | 0 | - | 4.98 | 815,655 |
| Countries that Start with N | 0 | - | 4.90 | 837,098 |
| Countries that Start with P | 0 | - | 4.94 | 924,912 |
| Countries that Start with R | 0 | - | 4.42 | 301,081 |
| Countries that Start with S | 0 | - | 4.96 | 1,359,979 |
| Countries that Start with T | 0 | - | 4.89 | 760,926 |
| Countries that Start with U | 0 | - | 4.97 | 686,533 |
| Countries that Start with V | 0 | - | 4.97 | 457,411 |
| Countries that Start with F | 0 | - | 4.76 | 425,486 |
| Countries that Start with M | 0 | - | 4.96 | 1,063,103 |
| Countries that Border China | 0 | - | 4.97 | 212,385 |
| Countries in World War II | 0 | - | 4.48 | 682,199 |
| Countries in World War I | 0 | - | 4.91 | 183,228 |
| Countries with Four Letters | 0 | - | 4.99 | 321,716 |
| Countries of Africa | 0 | - | 5.00 | 1,741,002 |
| Countries of South America | 0 | - | 5.00 | 625,919 |
| Countries of North America Quiz | 0 | - | 5.00 | 709,476 |
| Countries of Oceania | 0 | - | 5.00 | 715,831 |
| Vietnam War Countries | 0 | - | 4.78 | 76,851 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,704 |
| Countries Bordering France | 0 | - | 4.90 | 309,793 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,976 |
| Countries Bordering Germany | 0 | - | 4.99 | 293,212 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,356 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,538 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,371 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,188 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,559 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,232 |
| Countries by Clue #1 | 0 | - | 4.89 | 196,092 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,590 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,876 |
| Independence from Whom | 0 | - | 4.99 | 153,159 |
| Countries with Z | 0 | - | 4.99 | 223,345 |
| Holy Roman Empire Countries | 0 | - | 4.58 | 37,612 |
| Political Movements by Country | 0 | - | 4.50 | 62,051 |
| "Land" Countries | 0 | - | 4.98 | 265,430 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,908 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 218,161 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,632 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,759 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 247,168 |
| Former Countries by Capital | 0 | - | 4.41 | 97,483 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,269 |
| Biggest Cities in History | 0 | - | 4.47 | 70,745 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,722 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,875 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,464 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,484 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,978 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,301 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,282 |
| Historical City to Country | 0 | - | 4.81 | 66,485 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,040 |
| Countries in the Ottoman Empire | 0 | - | 4.93 | 50,816 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,923 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 343,253 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,348 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,337,937 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,136 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,326 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,900 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,114 |
| Former Countries | 0 | - | 4.53 | 100,529 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,455 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,963 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,869 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,734 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 57,079 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,352 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,751 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 999,244 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,905 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,902 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 111,055 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.58 | 68,465 |
| Every Country Shape | 0 | - | 4.99 | 314,439 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,886,618 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,421 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,971 |
| Countries with Megacities | 0 | - | 4.99 | 176,321 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,622 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,624 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,528 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,637 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,654,003 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 214,726 |
| Biggest World Cities in 1850 | 0 | - | 4.53 | 47,649 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,165 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,872 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,756 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,139 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,419 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,748 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,685 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,766 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,197 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,786 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 125,120 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,823 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,894 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 74,007 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,581 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 48,021 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,589 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,117 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,622 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,788 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,115 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,203 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,626 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,809 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,618 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,405 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,478 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,242 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,344 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,413 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,837 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,143 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,474 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.72 | 61,955 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,419 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,223 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,523 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 40,169 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,051 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,225 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,761 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 45,023 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 248,879 |
| Country by Photo of its Leader #1 | 0 | - | 4.74 | 80,837 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,664 |
| Random Flag to Country | 0 | - | 4.99 | 389,218 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,102 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,306 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,098,308 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,399 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,812 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,095 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,299 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,993 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,611 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,574 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,773 |
| Battle to Country | 0 | - | 4.89 | 30,647 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,134 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,728 |
| Countries by Former Name | 0 | - | 4.98 | 82,795 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,929 |
| Random European Countries on a Map | 0 | - | 4.98 | 213,298 |
| Random African Countries on a Map | 0 | - | 4.98 | 199,665 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,530,992 |
| Vatican City Country Quiz | 0 | - | 4.44 | 31,943 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 261,760 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 381,775 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,656 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 37,073 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,885 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 28,704 |
| Countries by Population Range - Tile Select | 0 | - | 4.82 | 43,686 |
