| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,217,284 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 736,974 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,971 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,279 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,168,063 |
| Biggest Countries by Area | 0 | - | 4.99 | 829,162 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,533 |
| Island Countries Quiz | 0 | - | 4.99 | 577,269 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,473 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,161 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,718 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,142 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,933 |
| Countries That Border Russia | 0 | - | 4.98 | 368,362 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,625 |
| Communist Countries in History | 0 | - | 4.48 | 383,654 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,709 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,130 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,363 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,834 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,133 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,957 |
| One Border Countries | 0 | - | 4.98 | 359,350 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,940 |
| EU Countries Quiz | 0 | - | 4.99 | 207,042 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,475,965 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,254,220 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,499 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,932 |
| Countries that Start with A | 0 | - | 4.96 | 1,631,395 |
| Countries that Start with B | 0 | - | 4.94 | 1,768,948 |
| Countries that Start with C | 0 | - | 4.95 | 1,401,655 |
| Countries that Start with D | 0 | - | 4.96 | 464,397 |
| Countries that Start with E | 0 | - | 4.93 | 1,033,796 |
| Countries that Start with G | 0 | - | 4.95 | 1,131,333 |
| Countries that Start with H | 0 | - | 4.93 | 391,330 |
| Countries that Start with I | 0 | - | 4.90 | 977,687 |
| Countries that Start with J | 0 | - | 4.96 | 394,646 |
| Countries that Start with K | 0 | - | 4.94 | 572,863 |
| Countries that Start with L | 0 | - | 4.98 | 814,440 |
| Countries that Start with N | 0 | - | 4.90 | 835,632 |
| Countries that Start with P | 0 | - | 4.94 | 923,552 |
| Countries that Start with R | 0 | - | 4.42 | 300,442 |
| Countries that Start with S | 0 | - | 4.96 | 1,358,017 |
| Countries that Start with T | 0 | - | 4.89 | 759,890 |
| Countries that Start with U | 0 | - | 4.97 | 685,580 |
| Countries that Start with V | 0 | - | 4.97 | 456,772 |
| Countries that Start with F | 0 | - | 4.76 | 424,680 |
| Countries that Start with M | 0 | - | 4.95 | 1,061,590 |
| Countries that Border China | 0 | - | 4.97 | 212,189 |
| Countries in World War II | 0 | - | 4.48 | 681,201 |
| Countries in World War I | 0 | - | 4.91 | 183,024 |
| Countries with Four Letters | 0 | - | 4.99 | 321,388 |
| Countries of Africa | 0 | - | 5.00 | 1,737,621 |
| Countries of South America | 0 | - | 5.00 | 624,704 |
| Countries of North America Quiz | 0 | - | 5.00 | 708,071 |
| Countries of Oceania | 0 | - | 5.00 | 714,223 |
| Vietnam War Countries | 0 | - | 4.78 | 76,755 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,538 |
| Countries Bordering France | 0 | - | 4.90 | 309,456 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,820 |
| Countries Bordering Germany | 0 | - | 4.99 | 292,855 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,258 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,417 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,197 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,129 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,373 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,141 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,939 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,428 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,690 |
| Independence from Whom | 0 | - | 4.99 | 153,024 |
| Countries with Z | 0 | - | 4.99 | 223,166 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,570 |
| Political Movements by Country | 0 | - | 4.50 | 62,001 |
| "Land" Countries | 0 | - | 4.98 | 265,202 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,781 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 217,638 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,490 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,679 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,921 |
| Former Countries by Capital | 0 | - | 4.41 | 97,431 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,142 |
| Biggest Cities in History | 0 | - | 4.47 | 70,661 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,655 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,844 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,409 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,423 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,781 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,257 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,227 |
| Historical City to Country | 0 | - | 4.81 | 66,432 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,944 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,758 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,854 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 342,833 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,165 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,332,215 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,026 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,210 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,824 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,021 |
| Former Countries | 0 | - | 4.52 | 100,452 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,370 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,790 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,804 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,662 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 57,015 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,257 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,691 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 998,137 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,708 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,869 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,913 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.57 | 68,398 |
| Every Country Shape | 0 | - | 4.99 | 313,930 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,882,608 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,386 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,718 |
| Countries with Megacities | 0 | - | 4.99 | 176,085 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,492 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,375 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,152 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,473 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,650,026 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.93 | 213,204 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,597 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,041 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,495 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,708 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,097 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,132 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,560 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,497 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,676 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,118 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,695 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 125,018 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,477 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,854 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,935 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,513 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 47,972 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,542 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,018 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,523 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,609 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,039 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,127 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,493 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,653 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,564 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,347 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,427 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,972 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,141 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,305 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,377 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,687 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,080 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.96 | 112,367 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,831 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,276 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,128 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,445 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 40,009 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,027 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,114 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,653 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,956 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 248,146 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,737 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,530 |
| Random Flag to Country | 0 | - | 4.99 | 388,595 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,064 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,086 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,096,258 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,335 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,423 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,967 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,126 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,770 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,552 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,443 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,490 |
| Battle to Country | 0 | - | 4.89 | 30,620 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,057 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,704 |
| Countries by Former Name | 0 | - | 4.98 | 82,695 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,830 |
| Random European Countries on a Map | 0 | - | 4.98 | 212,991 |
| Random African Countries on a Map | 0 | - | 4.98 | 199,375 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,516,378 |
| Vatican City Country Quiz | 0 | - | 4.44 | 31,887 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 261,100 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 381,189 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,641 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,966 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,754 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 28,629 |
