| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,149,512 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 735,836 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,617 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,035 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,166,665 |
| Biggest Countries by Area | 0 | - | 4.99 | 828,127 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,256 |
| Island Countries Quiz | 0 | - | 4.99 | 576,637 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,997 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,010 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,445 |
| Countries with the Most Borders | 0 | - | 4.96 | 317,778 |
| Countries with the Longest Coastlines | 0 | - | 4.86 | 352,656 |
| Countries That Border Russia | 0 | - | 4.98 | 367,815 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,450 |
| Communist Countries in History | 0 | - | 4.48 | 383,053 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,456 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 286,553 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,161 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,515 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,858 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,782 |
| One Border Countries | 0 | - | 4.98 | 358,774 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,718 |
| EU Countries Quiz | 0 | - | 4.99 | 206,858 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,467,674 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,250,668 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,339 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,899 |
| Countries that Start with A | 0 | - | 4.96 | 1,628,681 |
| Countries that Start with B | 0 | - | 4.94 | 1,766,230 |
| Countries that Start with C | 0 | - | 4.95 | 1,399,556 |
| Countries that Start with D | 0 | - | 4.96 | 463,309 |
| Countries that Start with E | 0 | - | 4.93 | 1,032,131 |
| Countries that Start with G | 0 | - | 4.95 | 1,129,491 |
| Countries that Start with H | 0 | - | 4.92 | 390,387 |
| Countries that Start with I | 0 | - | 4.90 | 976,234 |
| Countries that Start with J | 0 | - | 4.96 | 393,673 |
| Countries that Start with K | 0 | - | 4.94 | 571,647 |
| Countries that Start with L | 0 | - | 4.98 | 813,013 |
| Countries that Start with N | 0 | - | 4.90 | 834,271 |
| Countries that Start with P | 0 | - | 4.94 | 922,060 |
| Countries that Start with R | 0 | - | 4.42 | 299,713 |
| Countries that Start with S | 0 | - | 4.97 | 1,355,855 |
| Countries that Start with T | 0 | - | 4.89 | 758,623 |
| Countries that Start with U | 0 | - | 4.97 | 684,469 |
| Countries that Start with V | 0 | - | 4.97 | 456,004 |
| Countries that Start with F | 0 | - | 4.76 | 423,772 |
| Countries that Start with M | 0 | - | 4.95 | 1,059,934 |
| Countries that Border China | 0 | - | 4.97 | 211,959 |
| Countries in World War II | 0 | - | 4.48 | 679,849 |
| Countries in World War I | 0 | - | 4.92 | 182,753 |
| Countries with Four Letters | 0 | - | 4.99 | 321,019 |
| Countries of Africa | 0 | - | 5.00 | 1,733,167 |
| Countries of South America | 0 | - | 5.00 | 622,814 |
| Countries of North America Quiz | 0 | - | 5.00 | 706,215 |
| Countries of Oceania | 0 | - | 5.00 | 712,423 |
| Vietnam War Countries | 0 | - | 4.78 | 76,649 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,340 |
| Countries Bordering France | 0 | - | 4.90 | 308,990 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,653 |
| Countries Bordering Germany | 0 | - | 4.99 | 292,141 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,109 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,316 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,973 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,038 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,127 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,983 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,770 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,269 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,565 |
| Independence from Whom | 0 | - | 4.99 | 152,855 |
| Countries with Z | 0 | - | 4.99 | 222,953 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,501 |
| Political Movements by Country | 0 | - | 4.50 | 61,926 |
| "Land" Countries | 0 | - | 4.98 | 264,869 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,639 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.94 | 215,064 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,322 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,549 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,643 |
| Former Countries by Capital | 0 | - | 4.41 | 97,360 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,976 |
| Biggest Cities in History | 0 | - | 4.49 | 70,532 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,562 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,797 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,311 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,340 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,524 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,203 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,168 |
| Historical City to Country | 0 | - | 4.81 | 66,361 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,771 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,687 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,754 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 342,383 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,921 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,325,194 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,890 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,057 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,717 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,923 |
| Former Countries | 0 | - | 4.52 | 100,344 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,240 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,542 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,719 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,582 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,927 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,169 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,611 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 996,935 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,488 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,824 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,707 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.57 | 68,317 |
| Every Country Shape | 0 | - | 4.99 | 313,292 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,877,411 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,326 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,468 |
| Countries with Megacities | 0 | - | 4.99 | 175,734 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,348 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,136 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 126,990 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,304 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,645,402 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 194,038 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,532 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,885 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,070 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,653 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,037 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,985 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,316 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,210 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,562 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,008 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,565 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,889 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 187,976 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,804 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,829 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,430 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 47,909 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,486 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,876 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,420 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,405 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 75,939 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 86,973 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,319 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,450 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,489 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,269 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,370 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,902 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,979 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,247 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,327 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,475 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,005 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,227 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,680 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,087 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,011 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,352 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 39,962 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 23,983 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,005 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,509 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,862 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 247,601 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,619 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,354 |
| Random Flag to Country | 0 | - | 4.99 | 387,643 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,995 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,788 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,093,481 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,232 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 239,820 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,777 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,885 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,465 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,475 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,269 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,403 |
| Battle to Country | 0 | - | 4.89 | 30,567 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,962 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,664 |
| Countries by Former Name | 0 | - | 4.98 | 82,564 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,703 |
| Random European Countries on a Map | 0 | - | 4.98 | 212,625 |
| Random African Countries on a Map | 0 | - | 4.98 | 199,020 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,497,930 |
| Vatican City Country Quiz | 0 | - | 4.44 | 31,817 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 260,417 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 380,518 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,604 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,839 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,589 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 28,528 |
