| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,185,047 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 736,413 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,806 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,167 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,167,377 |
| Biggest Countries by Area | 0 | - | 4.99 | 828,643 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,406 |
| Island Countries Quiz | 0 | - | 4.99 | 576,953 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,373 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,093 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,602 |
| Countries with the Most Borders | 0 | - | 4.96 | 317,960 |
| Countries with the Longest Coastlines | 0 | - | 4.86 | 352,813 |
| Countries That Border Russia | 0 | - | 4.98 | 368,074 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,541 |
| Communist Countries in History | 0 | - | 4.48 | 383,379 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,612 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,016 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,286 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,692 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,027 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,891 |
| One Border Countries | 0 | - | 4.98 | 359,027 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,843 |
| EU Countries Quiz | 0 | - | 4.99 | 206,953 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,472,110 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,252,494 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,430 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,919 |
| Countries that Start with A | 0 | - | 4.96 | 1,630,117 |
| Countries that Start with B | 0 | - | 4.94 | 1,767,673 |
| Countries that Start with C | 0 | - | 4.95 | 1,400,668 |
| Countries that Start with D | 0 | - | 4.96 | 463,881 |
| Countries that Start with E | 0 | - | 4.93 | 1,033,049 |
| Countries that Start with G | 0 | - | 4.95 | 1,130,460 |
| Countries that Start with H | 0 | - | 4.92 | 390,893 |
| Countries that Start with I | 0 | - | 4.90 | 977,016 |
| Countries that Start with J | 0 | - | 4.96 | 394,202 |
| Countries that Start with K | 0 | - | 4.94 | 572,333 |
| Countries that Start with L | 0 | - | 4.98 | 813,798 |
| Countries that Start with N | 0 | - | 4.90 | 834,966 |
| Countries that Start with P | 0 | - | 4.94 | 922,842 |
| Countries that Start with R | 0 | - | 4.42 | 300,108 |
| Countries that Start with S | 0 | - | 4.97 | 1,357,004 |
| Countries that Start with T | 0 | - | 4.89 | 759,293 |
| Countries that Start with U | 0 | - | 4.97 | 685,081 |
| Countries that Start with V | 0 | - | 4.97 | 456,390 |
| Countries that Start with F | 0 | - | 4.76 | 424,274 |
| Countries that Start with M | 0 | - | 4.95 | 1,060,832 |
| Countries that Border China | 0 | - | 4.97 | 212,090 |
| Countries in World War II | 0 | - | 4.48 | 680,573 |
| Countries in World War I | 0 | - | 4.92 | 182,896 |
| Countries with Four Letters | 0 | - | 4.99 | 321,214 |
| Countries of Africa | 0 | - | 5.00 | 1,735,548 |
| Countries of South America | 0 | - | 5.00 | 623,798 |
| Countries of North America Quiz | 0 | - | 5.00 | 707,206 |
| Countries of Oceania | 0 | - | 5.00 | 713,424 |
| Vietnam War Countries | 0 | - | 4.78 | 76,712 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,453 |
| Countries Bordering France | 0 | - | 4.90 | 309,206 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,754 |
| Countries Bordering Germany | 0 | - | 4.99 | 292,372 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,175 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,377 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,092 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,078 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,262 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,087 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,859 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,357 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,636 |
| Independence from Whom | 0 | - | 4.99 | 152,946 |
| Countries with Z | 0 | - | 4.99 | 223,064 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,536 |
| Political Movements by Country | 0 | - | 4.50 | 61,970 |
| "Land" Countries | 0 | - | 4.98 | 265,045 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,722 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 217,128 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,406 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,626 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,795 |
| Former Countries by Capital | 0 | - | 4.41 | 97,398 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,071 |
| Biggest Cities in History | 0 | - | 4.49 | 70,601 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,607 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,828 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,361 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,391 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,648 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,226 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,199 |
| Historical City to Country | 0 | - | 4.81 | 66,405 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,858 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,725 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,811 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 342,619 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,056 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,328,838 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,961 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,141 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,771 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,980 |
| Former Countries | 0 | - | 4.52 | 100,409 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,317 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,681 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,766 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,634 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,977 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,217 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,660 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 997,555 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,589 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,851 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,821 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.57 | 68,362 |
| Every Country Shape | 0 | - | 4.99 | 313,633 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,880,196 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,355 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,612 |
| Countries with Megacities | 0 | - | 4.99 | 175,955 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,421 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,267 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,087 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,394 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,647,781 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.93 | 211,016 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,564 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,971 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,313 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,684 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,072 |
| Most Populous Countries by Year | 0 | - | 4.77 | 79,071 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,450 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,372 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,620 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,073 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,627 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,955 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,257 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,830 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,895 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,478 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 47,943 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,510 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,945 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,476 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,535 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,002 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,045 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,408 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,564 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,531 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,311 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,395 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,942 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,077 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,275 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,355 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,584 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,049 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,302 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,761 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,165 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,071 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,405 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 39,984 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,004 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,062 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,581 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,908 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 247,899 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,676 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,449 |
| Random Flag to Country | 0 | - | 4.99 | 388,112 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,030 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,960 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,094,883 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,297 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,100 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,878 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,045 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,641 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,516 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,362 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,440 |
| Battle to Country | 0 | - | 4.89 | 30,600 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,005 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,684 |
| Countries by Former Name | 0 | - | 4.98 | 82,643 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,778 |
| Random European Countries on a Map | 0 | - | 4.98 | 212,826 |
| Random African Countries on a Map | 0 | - | 4.98 | 199,238 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,507,988 |
| Vatican City Country Quiz | 0 | - | 4.44 | 31,848 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 260,773 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 380,880 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,624 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,896 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,696 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 28,579 |
