| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,260,453 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 737,634 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 344,213 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,168,998 |
| Biggest Countries by Area | 0 | - | 4.99 | 829,847 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,750 |
| Island Countries Quiz | 0 | - | 4.99 | 577,716 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,614 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,896 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,390 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 353,102 |
| Countries That Border Russia | 0 | - | 4.98 | 368,700 |
| Communist Countries in History | 0 | - | 4.48 | 384,049 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,843 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,295 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,461 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 307,011 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,320 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,049 |
| One Border Countries | 0 | - | 4.98 | 359,695 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,480,509 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,256,052 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,578 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,952 |
| Countries that Start with A | 0 | - | 4.96 | 1,633,232 |
| Countries that Start with B | 0 | - | 4.94 | 1,770,819 |
| Countries that Start with C | 0 | - | 4.95 | 1,403,100 |
| Countries that Start with D | 0 | - | 4.96 | 465,137 |
| Countries that Start with E | 0 | - | 4.93 | 1,034,975 |
| Countries that Start with G | 0 | - | 4.95 | 1,132,705 |
| Countries that Start with H | 0 | - | 4.93 | 391,931 |
| Countries that Start with I | 0 | - | 4.91 | 978,669 |
| Countries that Start with J | 0 | - | 4.96 | 395,277 |
| Countries that Start with K | 0 | - | 4.95 | 573,695 |
| Countries that Start with L | 0 | - | 4.98 | 815,394 |
| Countries that Start with N | 0 | - | 4.90 | 836,712 |
| Countries that Start with P | 0 | - | 4.94 | 924,610 |
| Countries that Start with R | 0 | - | 4.42 | 300,939 |
| Countries that Start with S | 0 | - | 4.96 | 1,359,524 |
| Countries that Start with T | 0 | - | 4.89 | 760,700 |
| Countries that Start with U | 0 | - | 4.97 | 686,313 |
| Countries that Start with V | 0 | - | 4.97 | 457,272 |
| Countries that Start with F | 0 | - | 4.76 | 425,279 |
| Countries that Start with M | 0 | - | 4.96 | 1,062,762 |
| Countries in World War II | 0 | - | 4.48 | 681,973 |
| Countries in World War I | 0 | - | 4.91 | 183,171 |
| Countries with Four Letters | 0 | - | 4.99 | 321,624 |
| Countries of Africa | 0 | - | 5.00 | 1,740,306 |
| Countries of South America | 0 | - | 5.00 | 625,638 |
| Countries of North America Quiz | 0 | - | 5.00 | 709,168 |
| Countries of Oceania | 0 | - | 5.00 | 715,448 |
| Vietnam War Countries | 0 | - | 4.78 | 76,832 |
| Countries Bordering France | 0 | - | 4.90 | 309,726 |
| Countries Bordering Germany | 0 | - | 4.99 | 293,136 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,336 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,507 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,327 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,175 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,507 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,215 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,784 |
| Independence from Whom | 0 | - | 4.99 | 153,129 |
| Holy Roman Empire Countries | 0 | - | 4.58 | 37,602 |
| Political Movements by Country | 0 | - | 4.50 | 62,040 |
| "Land" Countries | 0 | - | 4.98 | 265,383 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,881 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,605 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,745 |
| Former Countries by Capital | 0 | - | 4.41 | 97,475 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,243 |
| Biggest Cities in History | 0 | - | 4.47 | 70,730 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,710 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,869 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,451 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,473 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,937 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,291 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,272 |
| Historical City to Country | 0 | - | 4.81 | 66,474 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,029 |
| Countries in the Ottoman Empire | 0 | - | 4.93 | 50,797 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,911 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 343,155 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,336,824 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,114 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,299 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 169,002 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,878 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,082 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 119,410 |
| Former Countries | 0 | - | 4.53 | 100,512 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,430 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,915 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,859 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 93,064 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,716 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 57,061 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 173,261 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.97 | 117,404 |
| Five Most Guessed Countries by Continent | 0 | - | 4.93 | 134,519 |
| Five Least Guessed Countries by Continent | 0 | - | 4.93 | 49,608 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 88,481 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 92,738 |
| Five Richest Countries by Continent | 0 | - | 4.56 | 160,659 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 143,902 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,328 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 53,842 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,736 |
| Countries Closest to United States by Continent | 0 | - | 5.00 | 112,272 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 999,046 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,870 |
| Five Highest HDI Countries by Continent | 0 | - | 4.47 | 47,696 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,893 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 111,029 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.58 | 68,451 |
| Every Country Shape | 0 | - | 4.99 | 314,334 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,885,787 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,414 |
| Five Biggest Economies by Continent | 0 | - | 4.97 | 144,518 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,905 |
| Countries with Megacities | 0 | - | 4.99 | 176,267 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,593 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,570 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,460 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,598 |
| Five Lowest HDI Countries by Continent | 0 | - | 4.57 | 43,670 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,653,156 |
| Five Countries with Most Christians by Continent | 0 | - | 4.98 | 70,352 |
| Biggest World Cities in 1850 | 0 | - | 4.53 | 47,637 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,137 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,773 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,741 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,132 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,399 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,705 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,654 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.94 | 92,391 |
| Five Coldest Countries by Continent | 0 | - | 4.96 | 50,648 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,749 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,177 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,762 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 125,103 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,889 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,989 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,556 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 48,008 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,574 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,083 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,595 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,743 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,089 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,180 |
| Five Countries by a Single Word by Continent | 0 | - | 4.88 | 37,910 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,603 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,782 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,609 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,396 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,464 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 48,013 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,222 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,335 |
| 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 | 116,816 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,131 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,447 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.72 | 61,936 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,387 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,203 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,506 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 40,121 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,045 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,199 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,739 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 45,004 |
| Country by Photo of its Leader #1 | 0 | - | 4.74 | 80,815 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 58,589 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,639 |
| Random Flag to Country | 0 | - | 4.99 | 389,073 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,098 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,262 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,097,936 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.91 | 50,140 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,382 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,070 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,269 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,942 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,599 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,549 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,750 |
| Battle to Country | 0 | - | 4.89 | 30,642 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,115 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,722 |
| Countries by Former Name | 0 | - | 4.98 | 82,775 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,907 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,527,811 |
| Vatican City Country Quiz | 0 | - | 4.44 | 31,927 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 261,583 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 381,649 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,656 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 37,049 |
