| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 36,531,753 |
| Country Shape Quiz #1 | 0 | - | 4.89 | 775,365 |
| Country Shape Quiz #2 | 0 | - | 4.92 | 356,791 |
| Country Shape Quiz #3 | 0 | - | 4.91 | 253,847 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,215,658 |
| Biggest Countries by Area | 0 | - | 4.99 | 864,936 |
| Spanish-Speaking Countries | 0 | - | 4.88 | 320,414 |
| Island Countries Quiz | 0 | - | 4.99 | 602,684 |
| Northernmost Countries | 0 | - | 4.98 | 302,839 |
| Majority Muslim Countries | 0 | - | 4.97 | 295,339 |
| Countries with the Most Borders | 0 | - | 4.97 | 330,179 |
| Countries That Border Russia | 0 | - | 4.97 | 395,798 |
| Countries and Languages Quiz | 0 | - | 4.85 | 222,797 |
| Communist Countries in History | 0 | - | 4.43 | 404,681 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 263,959 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 298,468 |
| Commonwealth of Nations Countries | 0 | - | 4.93 | 211,744 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 318,018 |
| Countries with the Most Tourists Quiz | 0 | - | 4.93 | 317,253 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 145,808 |
| One Border Countries | 0 | - | 4.97 | 378,753 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,718,033 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,362,435 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 136,311 |
| Countries by Independence Day Quiz | 0 | - | 4.44 | 43,034 |
| Countries that Start with A | 0 | - | 4.96 | 1,758,812 |
| Countries that Start with B | 0 | - | 4.92 | 1,897,593 |
| Countries that Start with C | 0 | - | 4.94 | 1,502,240 |
| Countries that Start with D | 0 | - | 4.95 | 521,845 |
| Countries that Start with E | 0 | - | 4.91 | 1,116,019 |
| Countries that Start with G | 0 | - | 4.94 | 1,224,065 |
| Countries that Start with H | 0 | - | 4.90 | 444,519 |
| Countries that Start with I | 0 | - | 4.90 | 1,057,589 |
| Countries that Start with J | 0 | - | 4.96 | 448,071 |
| Countries that Start with K | 0 | - | 4.93 | 619,685 |
| Countries that Start with L | 0 | - | 4.97 | 867,960 |
| Countries that Start with N | 0 | - | 4.87 | 890,209 |
| Countries that Start with P | 0 | - | 4.89 | 984,579 |
| Countries that Start with R | 0 | - | 4.40 | 329,834 |
| Countries that Start with S | 0 | - | 4.97 | 1,446,003 |
| Countries that Start with T | 0 | - | 4.83 | 809,218 |
| Countries that Start with U | 0 | - | 4.96 | 727,251 |
| Countries that Start with V | 0 | - | 4.96 | 486,168 |
| Countries that Start with F | 0 | - | 4.68 | 478,926 |
| Countries that Start with M | 0 | - | 4.94 | 1,129,336 |
| Countries that Border China | 0 | - | 4.96 | 219,628 |
| Countries in World War II | 0 | - | 4.43 | 720,054 |
| Countries in World War I | 0 | - | 4.90 | 193,093 |
| Countries with Four Letters | 0 | - | 4.99 | 357,634 |
| Countries of Africa | 0 | - | 5.00 | 1,890,979 |
| Countries of South America | 0 | - | 5.00 | 693,872 |
| Countries of North America Quiz | 0 | - | 5.00 | 770,241 |
| Countries of Oceania | 0 | - | 5.00 | 776,603 |
| Vietnam War Countries | 0 | - | 4.75 | 81,058 |
| Countries Bordering Germany | 0 | - | 4.98 | 307,781 |
| Countries Bordering China Since 1914 | 0 | - | 4.91 | 74,324 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 135,732 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 274,813 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 76,512 |
| Countries of the Soviet Union | 0 | - | 4.98 | 156,329 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 95,614 |
| Countries with Five Letters Quiz | 0 | - | 4.94 | 216,511 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 131,463 |
| Independence from Whom | 0 | - | 4.99 | 171,854 |
| Countries with Z | 0 | - | 4.98 | 230,802 |
| Holy Roman Empire Countries | 0 | - | 4.60 | 39,824 |
| Political Movements by Country | 0 | - | 4.46 | 64,437 |
| "Land" Countries | 0 | - | 4.98 | 275,351 |
| Biggest English Cities by Century | 0 | - | 4.92 | 91,258 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 225,460 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 179,475 |
| Who Controlled These Colonies? | 0 | - | 4.82 | 104,631 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 257,475 |
| Former Countries by Capital | 0 | - | 4.41 | 99,494 |
| Most Populous Countries in 1900 | 0 | - | 4.88 | 152,655 |
| Biggest Cities in History | 0 | - | 4.46 | 74,201 |
| Warsaw Pact Countries | 0 | - | 4.88 | 67,069 |
| Inventions by Country #1 | 0 | - | 4.43 | 43,190 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 61,491 |
| Most Populous Countries in 1950 | 0 | - | 4.45 | 66,298 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 191,142 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 58,323 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 64,993 |
| Historical City to Country | 0 | - | 4.79 | 68,763 |
| Countries of the Japanese Empire | 0 | - | 4.96 | 79,968 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 64,031 |
| Countries Settled by Vikings | 0 | - | 4.93 | 105,059 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 359,830 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,598,948 |
| Countries that Bordered the USSR | 0 | - | 4.92 | 133,972 |
| Biggest European Cities by Century | 0 | - | 4.95 | 110,869 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 85,169 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 75,106 |
| Former Countries | 0 | - | 4.62 | 117,654 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 116,972 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 232,445 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 57,788 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 60,823 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.95 | 60,161 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.93 | 63,762 |
| Guerrillas by Country | 0 | - | 4.47 | 36,198 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.60 | 61,104 |
| Countries Bordering "U" Countries | 0 | - | 4.61 | 3,703 |
| World Map without 12 Countries | 0 | - | 4.96 | 287,018 |
| Largest Cities in Alexander's Empire | 0 | - | 4.47 | 36,990 |
| Neutral European Countries of WWII | 0 | - | 4.93 | 118,262 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.68 | 88,046 |
| Every Country Shape | 0 | - | 5.00 | 338,470 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,056,370 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.79 | 48,132 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 228,562 |
| Countries with Megacities | 0 | - | 4.99 | 182,782 |
| Countries of Europe by Population | 0 | - | 4.98 | 114,808 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 177,895 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.95 | 133,899 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 142,893 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,807,667 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 231,937 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 61,173 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 69,958 |
| One Country By Letter By Continent | 0 | - | 4.99 | 50,546 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 40,727 |
| Most Populous Countries in 1800 | 0 | - | 4.28 | 34,954 |
| Most Populous Countries by Year | 0 | - | 4.74 | 83,931 |
| Countries of Europe After World War II | 0 | - | 4.97 | 153,976 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 122,451 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 89,451 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 75,026 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 87,185 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 137,291 |
| 2016 News Stories - Name the Country | 0 | - | 4.43 | 20,962 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 46,418 |
| Biggest Roman Empire Countries | 0 | - | 4.84 | 76,871 |
| Biggest Mongol Empire Countries | 0 | - | 4.90 | 63,664 |
| Countries of Asia in 1900 | 0 | - | 4.46 | 49,939 |
| Biggest British Empire Countries | 0 | - | 4.49 | 73,435 |
| Biggest Spanish Empire Countries | 0 | - | 4.74 | 84,903 |
| Soviet Union Country Quiz | 0 | - | 4.84 | 60,299 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 162,606 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 79,037 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 91,094 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 96,914 |
| Flags of the Countries that Start with C | 0 | - | 4.89 | 107,040 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 71,463 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.90 | 62,926 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.90 | 50,306 |
| First Countries to Reach 5 Million People | 0 | - | 4.89 | 102,836 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.47 | 56,129 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.60 | 53,176 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 125,312 |
| Most-Visited Countries by Popes | 0 | - | 4.48 | 56,489 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 133,273 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.75 | 67,188 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.85 | 91,582 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 89,572 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 69,596 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 41,567 |
| 2017 News Stories - Name the Country | 0 | - | 4.47 | 25,325 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.93 | 66,789 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 66,439 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.90 | 47,291 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 265,287 |
| Country by Photo of its Leader #1 | 0 | - | 4.69 | 84,091 |
| Countries of the World in 1900 | 0 | - | 4.85 | 57,036 |
| Random Flag to Country | 0 | - | 4.99 | 426,687 |
| 2018 News Stories - Name the Country | 0 | - | 4.41 | 21,061 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.49 | 43,639 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 155,295 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,179,659 |
| Countries of the German Empire | 0 | - | 4.44 | 29,203 |
| Countries in the Byzantine Empire | 0 | - | 4.92 | 61,777 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 256,713 |
| Countries of Europe in 1444 | 0 | - | 4.93 | 78,372 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 99,860 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 113,543 |
| Densest Countries Bordering Each Other | 0 | - | 4.92 | 60,184 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 79,677 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 87,310 |
| Battle to Country | 0 | - | 4.86 | 32,122 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 70,881 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.56 | 22,873 |
| Countries by Former Name | 0 | - | 4.98 | 86,746 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 62,725 |
| Random European Countries on a Map | 0 | - | 4.98 | 230,084 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 6,116,682 |
| Vatican City Country Quiz | 0 | - | 4.49 | 34,458 |
| World Map with 10 Random Extra Borders | 0 | - | 4.96 | 284,199 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 409,954 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.88 | 40,717 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 63,519 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.68 | 31,632 |
| Countries by Population Range - Tile Select | 0 | - | 4.82 | 46,078 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,302,102 |
| Countries by Founding Story | 0 | - | 4.90 | 50,674 |
| Europe Map with Random Merged Countries | 0 | - | 4.93 | 226,017 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.43 | 40,841 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 73,604 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 54,198 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.96 | 108,595 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.79 | 44,235 |
