| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 38,356,615 |
| Country Shape Quiz #1 | 0 | - | 4.88 | 802,508 |
| Country Shape Quiz #2 | 0 | - | 4.93 | 366,093 |
| Country Shape Quiz #3 | 0 | - | 4.91 | 259,266 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,253,504 |
| Biggest Countries by Area | 0 | - | 4.99 | 893,026 |
| Spanish-Speaking Countries | 0 | - | 4.87 | 329,739 |
| Island Countries Quiz | 0 | - | 4.99 | 619,724 |
| Northernmost Countries | 0 | - | 4.98 | 318,981 |
| Majority Muslim Countries | 0 | - | 4.97 | 304,193 |
| Countries with the Most Borders | 0 | - | 4.97 | 339,577 |
| Countries with the Longest Coastlines | 0 | - | 4.82 | 381,285 |
| Countries That Border Russia | 0 | - | 4.97 | 411,486 |
| Communist Countries in History | 0 | - | 4.42 | 420,905 |
| Countries with the Most Billionaires | 0 | - | 4.94 | 271,140 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 306,545 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 216,166 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 325,967 |
| Countries with the Most Tourists Quiz | 0 | - | 4.93 | 339,384 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 149,816 |
| One Border Countries | 0 | - | 4.97 | 393,881 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,908,805 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,449,873 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 139,719 |
| Countries by Independence Day Quiz | 0 | - | 4.43 | 43,798 |
| Countries that Start with A | 0 | - | 4.96 | 1,843,559 |
| Countries that Start with B | 0 | - | 4.93 | 1,982,487 |
| Countries that Start with C | 0 | - | 4.94 | 1,566,785 |
| Countries that Start with D | 0 | - | 4.95 | 551,485 |
| Countries that Start with E | 0 | - | 4.92 | 1,167,495 |
| Countries that Start with G | 0 | - | 4.95 | 1,282,728 |
| Countries that Start with H | 0 | - | 4.92 | 470,195 |
| Countries that Start with I | 0 | - | 4.90 | 1,104,185 |
| Countries that Start with J | 0 | - | 4.97 | 474,166 |
| Countries that Start with K | 0 | - | 4.94 | 669,354 |
| Countries that Start with L | 0 | - | 4.98 | 921,441 |
| Countries that Start with N | 0 | - | 4.89 | 947,029 |
| Countries that Start with P | 0 | - | 4.89 | 1,046,138 |
| Countries that Start with R | 0 | - | 4.38 | 361,596 |
| Countries that Start with S | 0 | - | 4.97 | 1,528,398 |
| Countries that Start with T | 0 | - | 4.84 | 845,756 |
| Countries that Start with U | 0 | - | 4.96 | 758,482 |
| Countries that Start with V | 0 | - | 4.97 | 507,230 |
| Countries that Start with F | 0 | - | 4.70 | 505,186 |
| Countries that Start with M | 0 | - | 4.93 | 1,194,048 |
| Countries in World War II | 0 | - | 4.44 | 764,263 |
| Countries in World War I | 0 | - | 4.91 | 201,618 |
| Countries with Four Letters | 0 | - | 4.99 | 368,831 |
| Countries of Africa | 0 | - | 5.00 | 2,014,862 |
| Countries of South America | 0 | - | 5.00 | 737,363 |
| Countries of North America Quiz | 0 | - | 5.00 | 819,535 |
| Countries of Oceania | 0 | - | 5.00 | 826,779 |
| Vietnam War Countries | 0 | - | 4.75 | 83,898 |
| Countries Bordering France | 0 | - | 4.82 | 345,573 |
| Countries Bordering Germany | 0 | - | 4.99 | 329,934 |
| Countries Bordering China Since 1914 | 0 | - | 4.90 | 84,982 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 139,092 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 281,332 |
| Countries "Ruled" by King Charles III | 0 | - | 4.75 | 79,096 |
| Countries of the Soviet Union | 0 | - | 4.99 | 177,758 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 97,981 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 135,258 |
| Independence from Whom | 0 | - | 4.99 | 176,701 |
| Holy Roman Empire Countries | 0 | - | 4.60 | 41,165 |
| Political Movements by Country | 0 | - | 4.42 | 66,320 |
| "Land" Countries | 0 | - | 4.98 | 281,427 |
| Biggest English Cities by Century | 0 | - | 4.93 | 95,390 |
| Most Populous Countries in 2050 | 0 | - | 4.93 | 184,204 |
| Who Controlled These Colonies? | 0 | - | 4.84 | 107,560 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 275,442 |
| Former Countries by Capital | 0 | - | 4.41 | 101,232 |
| Most Populous Countries in 1900 | 0 | - | 4.89 | 156,966 |
| Biggest Cities in History | 0 | - | 4.47 | 76,470 |
| Warsaw Pact Countries | 0 | - | 4.87 | 78,393 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 63,285 |
| Most Populous Countries in 1950 | 0 | - | 4.44 | 68,474 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 198,717 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 59,744 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 66,306 |
| Historical City to Country | 0 | - | 4.75 | 70,317 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 84,204 |
| Countries in the Ottoman Empire | 0 | - | 4.90 | 65,858 |
| Countries Settled by Vikings | 0 | - | 4.94 | 107,927 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 372,003 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.93 | 4,806,729 |
| Countries that Bordered the USSR | 0 | - | 4.91 | 137,842 |
| Biggest European Cities by Century | 0 | - | 4.96 | 114,477 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 87,622 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 77,700 |
| Former Countries | 0 | - | 4.63 | 120,252 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 119,584 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 238,063 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 60,022 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 63,070 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.95 | 62,390 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 67,478 |
| Guerrillas by Country | 0 | - | 4.47 | 37,278 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.63 | 62,895 |
| Countries Bordering "U" Countries | 0 | - | 4.75 | 17,933 |
| World Map without 12 Countries | 0 | - | 4.96 | 293,460 |
| Largest Cities in Alexander's Empire | 0 | - | 4.47 | 37,839 |
| Neutral European Countries of WWII | 0 | - | 4.94 | 124,192 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.68 | 90,063 |
| Every Country Shape | 0 | - | 5.00 | 357,980 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,206,190 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.80 | 49,328 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 236,313 |
| Countries with Megacities | 0 | - | 4.99 | 188,199 |
| Countries of Europe by Population | 0 | - | 4.98 | 119,185 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 195,381 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 139,685 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 149,765 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,918,040 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 62,869 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 72,858 |
| One Country By Letter By Continent | 0 | - | 4.99 | 61,102 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.76 | 41,829 |
| Most Populous Countries in 1800 | 0 | - | 4.31 | 36,564 |
| Most Populous Countries by Year | 0 | - | 4.76 | 87,784 |
| Countries of Europe After World War II | 0 | - | 4.98 | 161,653 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 130,399 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 92,402 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 77,148 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 89,832 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 162,314 |
| 2016 News Stories - Name the Country | 0 | - | 4.43 | 21,657 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 47,386 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 79,224 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 65,230 |
| Countries of Asia in 1900 | 0 | - | 4.47 | 51,443 |
| Biggest British Empire Countries | 0 | - | 4.50 | 75,669 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 88,245 |
| Soviet Union Country Quiz | 0 | - | 4.86 | 63,705 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 170,117 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 81,405 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 93,983 |
| Flags of the Countries that Start with A | 0 | - | 4.95 | 101,821 |
| Flags of the Countries that Start with C | 0 | - | 4.91 | 112,671 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 73,736 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.74 | 66,643 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.91 | 64,954 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 52,058 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 105,835 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.47 | 57,521 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.60 | 54,551 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 132,229 |
| Most-Visited Countries by Popes | 0 | - | 4.51 | 59,198 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 139,916 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.80 | 71,536 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.84 | 96,837 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 92,183 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 72,020 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.48 | 45,637 |
| 2017 News Stories - Name the Country | 0 | - | 4.43 | 26,203 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.93 | 70,469 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.79 | 70,343 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.90 | 48,962 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 279,701 |
| Country by Photo of its Leader #1 | 0 | - | 4.68 | 86,431 |
| Countries of the World in 1900 | 0 | - | 4.85 | 60,341 |
| Random Flag to Country | 0 | - | 4.99 | 471,849 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.52 | 44,813 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 161,601 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,242,761 |
| Countries of the German Empire | 0 | - | 4.46 | 31,381 |
| Countries in the Byzantine Empire | 0 | - | 4.93 | 64,140 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 269,291 |
| Countries of Europe in 1444 | 0 | - | 4.93 | 82,242 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 105,379 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 119,518 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 62,238 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 83,687 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 89,738 |
| Battle to Country | 0 | - | 4.87 | 33,247 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 23,691 |
| Countries by Former Name | 0 | - | 4.98 | 89,585 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 65,310 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 6,534,267 |
| Vatican City Country Quiz | 0 | - | 4.49 | 36,328 |
| World Map with 10 Random Extra Borders | 0 | - | 4.96 | 301,949 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 430,762 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 43,821 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.95 | 67,397 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.60 | 33,560 |
| Countries by Population Range - Tile Select | 0 | - | 4.83 | 48,026 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,371,873 |
| Countries by Founding Story | 0 | - | 4.90 | 52,246 |
| Europe Map with Random Merged Countries | 0 | - | 4.95 | 245,832 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.44 | 42,756 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 75,604 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 57,180 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 116,852 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.82 | 46,573 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 73,888 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.79 | 37,660 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.64 | 25,231 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 58,391 |
| Countries of the World in 1444 | 0 | - | 4.98 | 46,792 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.93 | 53,112 |
| Colour in the Flag Map by Guessing Cities #2 | 0 | - | 4.75 | 41,315 |
