| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,287,777 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 738,036 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 344,335 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,500 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,169,464 |
| Biggest Countries by Area | 0 | - | 4.99 | 830,226 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,866 |
| Island Countries Quiz | 0 | - | 4.99 | 577,934 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,699 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,287 |
| Majority Muslim Countries | 0 | - | 4.96 | 282,020 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,504 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 353,230 |
| Countries That Border Russia | 0 | - | 4.98 | 368,870 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,800 |
| Communist Countries in History | 0 | - | 4.48 | 384,252 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,915 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,392 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,520 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 307,107 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,426 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,088 |
| One Border Countries | 0 | - | 4.98 | 359,868 |
| NATO Countries Quiz | 0 | - | 4.97 | 202,149 |
| EU Countries Quiz | 0 | - | 4.99 | 207,269 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,483,170 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,257,402 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,616 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,956 |
| Countries that Start with A | 0 | - | 4.96 | 1,634,218 |
| Countries that Start with B | 0 | - | 4.94 | 1,771,779 |
| Countries that Start with C | 0 | - | 4.95 | 1,403,884 |
| Countries that Start with D | 0 | - | 4.97 | 465,557 |
| Countries that Start with E | 0 | - | 4.93 | 1,035,592 |
| Countries that Start with G | 0 | - | 4.95 | 1,133,436 |
| Countries that Start with H | 0 | - | 4.93 | 392,303 |
| Countries that Start with I | 0 | - | 4.91 | 979,190 |
| Countries that Start with J | 0 | - | 4.96 | 395,634 |
| Countries that Start with K | 0 | - | 4.95 | 574,156 |
| Countries that Start with L | 0 | - | 4.98 | 815,889 |
| Countries that Start with N | 0 | - | 4.90 | 837,363 |
| Countries that Start with P | 0 | - | 4.94 | 925,192 |
| Countries that Start with R | 0 | - | 4.42 | 301,221 |
| Countries that Start with S | 0 | - | 4.96 | 1,360,368 |
| Countries that Start with T | 0 | - | 4.89 | 761,140 |
| Countries that Start with U | 0 | - | 4.97 | 686,730 |
| Countries that Start with V | 0 | - | 4.97 | 457,542 |
| Countries that Start with F | 0 | - | 4.77 | 425,650 |
| Countries that Start with M | 0 | - | 4.95 | 1,063,385 |
| Countries that Border China | 0 | - | 4.97 | 212,436 |
| Countries in World War II | 0 | - | 4.48 | 682,407 |
| Countries in World War I | 0 | - | 4.91 | 183,275 |
| Countries with Four Letters | 0 | - | 4.99 | 321,796 |
| Countries of Africa | 0 | - | 5.00 | 1,741,752 |
| Countries of South America | 0 | - | 5.00 | 626,279 |
| Countries of North America Quiz | 0 | - | 5.00 | 709,862 |
| Countries of Oceania | 0 | - | 5.00 | 716,185 |
| Vietnam War Countries | 0 | - | 4.78 | 76,867 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,740 |
| Countries Bordering France | 0 | - | 4.90 | 309,862 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 200,013 |
| Countries Bordering Germany | 0 | - | 4.99 | 293,269 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,372 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,555 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,407 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,207 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,599 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,249 |
| Countries by Clue #1 | 0 | - | 4.89 | 196,140 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,622 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 127,005 |
| Independence from Whom | 0 | - | 4.99 | 153,187 |
| Countries with Z | 0 | - | 4.99 | 223,374 |
| Holy Roman Empire Countries | 0 | - | 4.58 | 37,623 |
| Political Movements by Country | 0 | - | 4.50 | 62,056 |
| "Land" Countries | 0 | - | 4.98 | 265,496 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,937 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 218,231 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,661 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,782 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 247,221 |
| Former Countries by Capital | 0 | - | 4.41 | 97,494 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,291 |
| Biggest Cities in History | 0 | - | 4.47 | 70,770 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,733 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,881 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,477 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,495 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 182,035 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,318 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,293 |
| Historical City to Country | 0 | - | 4.81 | 66,500 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,059 |
| Countries in the Ottoman Empire | 0 | - | 4.93 | 50,831 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,944 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 343,319 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,392 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,339,430 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 129,155 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,356 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,912 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,136 |
| Former Countries | 0 | - | 4.53 | 100,543 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,478 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 225,021 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,880 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,755 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 57,096 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,372 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,758 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 999,565 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,946 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,905 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 111,076 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.57 | 68,477 |
| Every Country Shape | 0 | - | 4.99 | 314,531 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,887,409 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,432 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 218,014 |
| Countries with Megacities | 0 | - | 4.99 | 176,368 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,647 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,666 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,567 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,674 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,654,871 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 214,957 |
| Biggest World Cities in 1850 | 0 | - | 4.53 | 47,663 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,195 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,964 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 38,770 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,144 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,439 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,799 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,732 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,784 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,212 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,801 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 125,142 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,901 |
| Most Recently-Settled Countries | 0 | - | 4.90 | 44,907 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 74,019 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,605 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 48,033 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,596 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,136 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,634 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,823 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,138 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,224 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,653 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,837 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,633 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,415 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,492 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 48,042 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,260 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,352 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,439 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,869 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,156 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,504 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.72 | 61,973 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,441 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,243 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,548 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 40,193 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,062 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,250 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,785 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 45,037 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 249,048 |
| Country by Photo of its Leader #1 | 0 | - | 4.74 | 80,858 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,694 |
| Random Flag to Country | 0 | - | 4.99 | 389,322 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,112 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,350 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,098,722 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,412 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,911 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,127 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,323 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 106,042 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,628 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,602 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,791 |
| Battle to Country | 0 | - | 4.89 | 30,651 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,150 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,734 |
| Countries by Former Name | 0 | - | 4.98 | 82,814 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,951 |
| Random European Countries on a Map | 0 | - | 4.98 | 213,365 |
| Random African Countries on a Map | 0 | - | 4.98 | 199,728 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,534,401 |
| Vatican City Country Quiz | 0 | - | 4.44 | 31,957 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 261,902 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 381,906 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,663 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 37,099 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,904 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 28,721 |
