| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,001,487 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 733,382 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 342,781 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,163,392 |
| Biggest Countries by Area | 0 | - | 4.99 | 825,711 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.91 | 294,537 |
| Island Countries Quiz | 0 | - | 4.99 | 575,141 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,456 |
| Majority Muslim Countries | 0 | - | 4.96 | 280,778 |
| Countries with the Most Borders | 0 | - | 4.96 | 316,959 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 351,938 |
| Countries That Border Russia | 0 | - | 4.98 | 366,758 |
| Communist Countries in History | 0 | - | 4.47 | 381,755 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 254,739 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 285,896 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,771 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 305,765 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,218 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 132,485 |
| One Border Countries | 0 | - | 4.98 | 357,528 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,451,846 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,243,547 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 130,797 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,823 |
| Countries that Start with A | 0 | - | 4.96 | 1,622,223 |
| Countries that Start with B | 0 | - | 4.94 | 1,759,713 |
| Countries that Start with C | 0 | - | 4.95 | 1,394,339 |
| Countries that Start with D | 0 | - | 4.96 | 460,652 |
| Countries that Start with E | 0 | - | 4.93 | 1,027,964 |
| Countries that Start with G | 0 | - | 4.95 | 1,125,094 |
| Countries that Start with H | 0 | - | 4.92 | 388,084 |
| Countries that Start with I | 0 | - | 4.90 | 972,642 |
| Countries that Start with J | 0 | - | 4.96 | 391,378 |
| Countries that Start with K | 0 | - | 4.94 | 568,316 |
| Countries that Start with L | 0 | - | 4.98 | 809,753 |
| Countries that Start with N | 0 | - | 4.90 | 831,011 |
| Countries that Start with P | 0 | - | 4.94 | 918,271 |
| Countries that Start with R | 0 | - | 4.41 | 297,786 |
| Countries that Start with S | 0 | - | 4.97 | 1,350,728 |
| Countries that Start with T | 0 | - | 4.88 | 755,574 |
| Countries that Start with U | 0 | - | 4.97 | 681,744 |
| Countries that Start with V | 0 | - | 4.97 | 454,101 |
| Countries that Start with F | 0 | - | 4.74 | 421,295 |
| Countries that Start with M | 0 | - | 4.95 | 1,056,100 |
| Countries in World War II | 0 | - | 4.47 | 677,065 |
| Countries in World War I | 0 | - | 4.92 | 182,119 |
| Countries with Four Letters | 0 | - | 4.99 | 320,145 |
| Countries of Africa | 0 | - | 5.00 | 1,723,172 |
| Countries of South America | 0 | - | 5.00 | 619,185 |
| Countries of North America Quiz | 0 | - | 5.00 | 702,145 |
| Countries of Oceania | 0 | - | 5.00 | 708,143 |
| Vietnam War Countries | 0 | - | 4.78 | 76,406 |
| Countries Bordering France | 0 | - | 4.90 | 308,171 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,240 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 69,832 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,061 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,483 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 64,848 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,580 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,697 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,241 |
| Independence from Whom | 0 | - | 4.99 | 152,481 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,350 |
| Political Movements by Country | 0 | - | 4.49 | 61,754 |
| "Land" Countries | 0 | - | 4.98 | 262,077 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,260 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 172,602 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,053 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,640 |
| Biggest Cities in History | 0 | - | 4.49 | 70,133 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,377 |
| Inventions by Country #1 | 0 | - | 4.42 | 41,689 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,126 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,154 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 180,974 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,085 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,060 |
| Historical City to Country | 0 | - | 4.81 | 66,196 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,433 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,489 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,550 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 341,333 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,307,808 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,599 |
| Biggest European Cities by Century | 0 | - | 4.97 | 104,771 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,154 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,500 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,770 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 118,860 |
| Former Countries | 0 | - | 4.56 | 100,155 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 112,749 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 223,997 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,478 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 92,627 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,348 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,704 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 172,443 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.97 | 116,870 |
| Five Most Guessed Countries by Continent | 0 | - | 4.93 | 133,811 |
| Five Least Guessed Countries by Continent | 0 | - | 4.92 | 49,013 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 88,102 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 92,145 |
| Five Richest Countries by Continent | 0 | - | 4.53 | 154,263 |
| Five Poorest Countries by Continent | 0 | - | 4.96 | 143,262 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.91 | 58,957 |
| Guerrillas by Country | 0 | - | 4.42 | 34,762 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.87 | 53,588 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,465 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 111,713 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 993,536 |
| World Map without 12 Countries | 0 | - | 4.96 | 277,963 |
| Five Highest HDI Countries by Continent | 0 | - | 4.46 | 47,440 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,742 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,254 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.56 | 68,144 |
| Every Country Shape | 0 | - | 4.99 | 311,664 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,865,124 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,236 |
| Five Biggest Economies by Continent | 0 | - | 4.97 | 143,809 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 216,840 |
| Countries with Megacities | 0 | - | 4.99 | 158,144 |
| Countries of Europe by Population | 0 | - | 4.98 | 107,963 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,509 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 126,615 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 122,569 |
| Five Lowest HDI Countries by Continent | 0 | - | 4.64 | 43,473 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,635,149 |
| Five Countries with Most Christians by Continent | 0 | - | 4.98 | 69,934 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,408 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,585 |
| One Country By Letter By Continent | 0 | - | 4.99 | 35,117 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,510 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 32,897 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,645 |
| Countries of Europe After World War II | 0 | - | 4.97 | 142,700 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 111,545 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.94 | 91,846 |
| Five Coldest Countries by Continent | 0 | - | 4.96 | 50,259 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,301 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 71,798 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,289 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,564 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,700 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,626 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,262 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 47,757 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,369 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,608 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,199 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 141,891 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 75,746 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 86,716 |
| Five Countries by a Single Word by Continent | 0 | - | 4.88 | 37,394 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 89,982 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,070 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,304 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,108 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,202 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,749 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,245 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,122 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,194 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 115,992 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,768 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.96 | 111,879 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,291 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 84,637 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 85,605 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,117 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 39,851 |
| 2017 News Stories - Name the Country | 0 | - | 4.47 | 23,901 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,663 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,167 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,688 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,367 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 58,125 |
| Countries of the World in 1900 | 0 | - | 4.87 | 51,995 |
| Random Flag to Country | 0 | - | 4.99 | 385,701 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,891 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,187 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,089,066 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.91 | 49,811 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,088 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,372 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,424 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 104,863 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,315 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 73,839 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,184 |
| Battle to Country | 0 | - | 4.89 | 30,445 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,736 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,588 |
| Countries by Former Name | 0 | - | 4.99 | 82,291 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,434 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,459,500 |
| Vatican City Country Quiz | 0 | - | 4.47 | 31,642 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 258,657 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 378,563 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,521 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,516 |
