| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,107,350 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 735,157 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,378 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 245,878 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,165,693 |
| Biggest Countries by Area | 0 | - | 4.99 | 827,437 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.91 | 295,040 |
| Island Countries Quiz | 0 | - | 4.99 | 576,225 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,814 |
| Southernmost Countries of the World | 0 | - | 4.99 | 181,909 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,237 |
| Countries with the Most Borders | 0 | - | 4.96 | 317,534 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,441 |
| Countries That Border Russia | 0 | - | 4.98 | 367,522 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,311 |
| Communist Countries in History | 0 | - | 4.47 | 382,705 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,186 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 286,332 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,013 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,273 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,680 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,716 |
| One Border Countries | 0 | - | 4.98 | 358,414 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,560 |
| EU Countries Quiz | 0 | - | 4.99 | 206,731 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,463,319 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,248,724 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,025 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,872 |
| Countries that Start with A | 0 | - | 4.96 | 1,626,912 |
| Countries that Start with B | 0 | - | 4.94 | 1,764,455 |
| Countries that Start with C | 0 | - | 4.95 | 1,398,106 |
| Countries that Start with D | 0 | - | 4.96 | 462,600 |
| Countries that Start with E | 0 | - | 4.93 | 1,031,011 |
| Countries that Start with G | 0 | - | 4.95 | 1,128,311 |
| Countries that Start with H | 0 | - | 4.92 | 389,762 |
| Countries that Start with I | 0 | - | 4.90 | 975,271 |
| Countries that Start with J | 0 | - | 4.96 | 393,038 |
| Countries that Start with K | 0 | - | 4.95 | 570,841 |
| Countries that Start with L | 0 | - | 4.98 | 812,081 |
| Countries that Start with N | 0 | - | 4.90 | 833,347 |
| Countries that Start with P | 0 | - | 4.94 | 921,022 |
| Countries that Start with R | 0 | - | 4.41 | 299,180 |
| Countries that Start with S | 0 | - | 4.97 | 1,354,449 |
| Countries that Start with T | 0 | - | 4.89 | 757,810 |
| Countries that Start with U | 0 | - | 4.97 | 683,722 |
| Countries that Start with V | 0 | - | 4.97 | 455,500 |
| Countries that Start with F | 0 | - | 4.76 | 423,094 |
| Countries that Start with M | 0 | - | 4.95 | 1,058,857 |
| Countries that Border China | 0 | - | 4.97 | 211,831 |
| Countries in World War II | 0 | - | 4.47 | 679,083 |
| Countries in World War I | 0 | - | 4.92 | 182,568 |
| Countries with Four Letters | 0 | - | 4.99 | 320,768 |
| Countries of Africa | 0 | - | 5.00 | 1,730,261 |
| Countries of South America | 0 | - | 5.00 | 621,762 |
| Countries of North America Quiz | 0 | - | 5.00 | 705,005 |
| Countries of Oceania | 0 | - | 5.00 | 711,220 |
| Vietnam War Countries | 0 | - | 4.78 | 76,576 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,017 |
| Countries Bordering France | 0 | - | 4.90 | 308,766 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,262 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,847 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,042 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,235 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,821 |
| Countries "Ruled" by King Charles III | 0 | - | 4.73 | 64,981 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,956 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,901 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,654 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,157 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,466 |
| Independence from Whom | 0 | - | 4.99 | 152,756 |
| Countries with Z | 0 | - | 4.99 | 222,829 |
| Holy Roman Empire Countries | 0 | - | 4.56 | 37,446 |
| Political Movements by Country | 0 | - | 4.49 | 61,876 |
| "Land" Countries | 0 | - | 4.98 | 264,581 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,513 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.94 | 206,692 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,194 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,486 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,431 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,875 |
| Biggest Cities in History | 0 | - | 4.49 | 70,425 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,509 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,768 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,262 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,285 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,360 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,173 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,149 |
| Historical City to Country | 0 | - | 4.81 | 66,316 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,680 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,631 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,702 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 342,045 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,780 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,320,414 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,819 |
| Biggest European Cities by Century | 0 | - | 4.96 | 104,973 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,652 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,879 |
| Former Countries | 0 | - | 4.52 | 100,292 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,171 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,408 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,665 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,509 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,871 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,102 |
| Guerrillas by Country | 0 | - | 4.42 | 34,837 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,567 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 995,766 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,333 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,800 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,558 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.56 | 68,278 |
| Every Country Shape | 0 | - | 4.99 | 312,787 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,874,067 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,303 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,280 |
| Countries with Megacities | 0 | - | 4.99 | 175,265 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,233 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,988 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 126,899 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,189 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,642,330 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 191,370 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,496 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,782 |
| One Country By Letter By Continent | 0 | - | 4.99 | 35,829 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,604 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,005 |
| Most Populous Countries by Year | 0 | - | 4.76 | 78,895 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,171 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,047 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,493 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 71,940 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,486 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,803 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 187,703 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,769 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,758 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,382 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 47,873 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,466 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,806 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,355 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,248 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 75,888 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 86,921 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,223 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,328 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,440 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,225 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,321 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,864 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,870 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,212 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,286 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,359 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,961 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,134 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,563 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 84,972 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 85,944 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,286 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 39,930 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 23,964 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,905 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,410 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,818 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 247,328 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,554 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,234 |
| Random Flag to Country | 0 | - | 4.99 | 387,135 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,963 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,573 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,092,220 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,181 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 239,578 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,664 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,745 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,284 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,430 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,158 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,332 |
| Battle to Country | 0 | - | 4.89 | 30,533 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,910 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,638 |
| Countries by Former Name | 0 | - | 4.99 | 82,482 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,625 |
| Random European Countries on a Map | 0 | - | 4.98 | 212,378 |
| Random African Countries on a Map | 0 | - | 4.98 | 198,790 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,486,990 |
| Vatican City Country Quiz | 0 | - | 4.47 | 31,764 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 259,981 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 380,006 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,581 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,762 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,451 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.73 | 28,485 |
