| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,066,327 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 734,418 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,138 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 245,707 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,164,810 |
| Biggest Countries by Area | 0 | - | 4.99 | 826,756 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.91 | 294,840 |
| Island Countries Quiz | 0 | - | 4.99 | 575,830 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,679 |
| Southernmost Countries of the World | 0 | - | 4.99 | 181,825 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,083 |
| Countries with the Most Borders | 0 | - | 4.96 | 317,284 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,236 |
| Countries That Border Russia | 0 | - | 4.98 | 367,215 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,210 |
| Communist Countries in History | 0 | - | 4.47 | 382,340 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,007 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 286,187 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,915 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,073 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,506 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 132,623 |
| One Border Countries | 0 | - | 4.98 | 358,074 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,438 |
| EU Countries Quiz | 0 | - | 4.99 | 206,476 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,458,770 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,246,716 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 130,934 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,854 |
| Countries that Start with A | 0 | - | 4.96 | 1,625,193 |
| Countries that Start with B | 0 | - | 4.94 | 1,762,739 |
| Countries that Start with C | 0 | - | 4.95 | 1,396,733 |
| Countries that Start with D | 0 | - | 4.96 | 461,884 |
| Countries that Start with E | 0 | - | 4.93 | 1,029,906 |
| Countries that Start with G | 0 | - | 4.95 | 1,127,150 |
| Countries that Start with H | 0 | - | 4.92 | 389,112 |
| Countries that Start with I | 0 | - | 4.90 | 974,281 |
| Countries that Start with J | 0 | - | 4.96 | 392,410 |
| Countries that Start with K | 0 | - | 4.95 | 569,649 |
| Countries that Start with L | 0 | - | 4.98 | 811,213 |
| Countries that Start with N | 0 | - | 4.90 | 832,510 |
| Countries that Start with P | 0 | - | 4.94 | 920,003 |
| Countries that Start with R | 0 | - | 4.41 | 298,663 |
| Countries that Start with S | 0 | - | 4.97 | 1,353,126 |
| Countries that Start with T | 0 | - | 4.89 | 756,989 |
| Countries that Start with U | 0 | - | 4.97 | 682,982 |
| Countries that Start with V | 0 | - | 4.97 | 454,983 |
| Countries that Start with F | 0 | - | 4.74 | 422,402 |
| Countries that Start with M | 0 | - | 4.95 | 1,057,855 |
| Countries that Border China | 0 | - | 4.97 | 211,390 |
| Countries in World War II | 0 | - | 4.47 | 678,266 |
| Countries in World War I | 0 | - | 4.92 | 182,400 |
| Countries with Four Letters | 0 | - | 4.99 | 320,528 |
| Countries of Africa | 0 | - | 5.00 | 1,727,649 |
| Countries of South America | 0 | - | 5.00 | 620,708 |
| Countries of North America Quiz | 0 | - | 5.00 | 703,887 |
| Countries of Oceania | 0 | - | 5.00 | 710,145 |
| Vietnam War Countries | 0 | - | 4.78 | 76,514 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 205,894 |
| Countries Bordering France | 0 | - | 4.90 | 308,546 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,114 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,596 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 69,977 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,164 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,686 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 64,940 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,815 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,833 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,516 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,054 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,381 |
| Independence from Whom | 0 | - | 4.99 | 152,627 |
| Countries with Z | 0 | - | 4.99 | 222,720 |
| Holy Roman Empire Countries | 0 | - | 4.56 | 37,404 |
| Political Movements by Country | 0 | - | 4.49 | 61,829 |
| "Land" Countries | 0 | - | 4.98 | 264,110 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,423 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 204,402 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,065 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,407 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,253 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,784 |
| Biggest Cities in History | 0 | - | 4.49 | 70,333 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,448 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,737 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,208 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,220 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,194 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,145 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,115 |
| Historical City to Country | 0 | - | 4.81 | 66,278 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,579 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,581 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,640 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 341,785 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,651 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,315,759 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,725 |
| Biggest European Cities by Century | 0 | - | 4.96 | 104,890 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,603 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,840 |
| Former Countries | 0 | - | 4.52 | 100,237 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,092 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,250 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,608 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,444 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,804 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,046 |
| Guerrillas by Country | 0 | - | 4.42 | 34,810 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,532 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 994,959 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,187 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,779 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,437 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.56 | 68,226 |
| Every Country Shape | 0 | - | 4.99 | 312,385 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,870,541 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,278 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,105 |
| Countries with Megacities | 0 | - | 4.99 | 174,081 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,131 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,813 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 126,770 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 122,794 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,639,690 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 191,099 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,472 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,701 |
| One Country By Letter By Continent | 0 | - | 4.99 | 35,521 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,570 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 32,980 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,809 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,004 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 111,843 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,417 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 71,890 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,398 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,707 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 187,408 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,734 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,702 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,346 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 47,819 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,422 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,726 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,297 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,107 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 75,836 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 86,835 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,117 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,232 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,386 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,272 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,826 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,688 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,180 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,242 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,222 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,902 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,031 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,429 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 84,818 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 85,867 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,228 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 39,904 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 23,935 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,780 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,291 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,764 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 247,045 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,484 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,144 |
| Random Flag to Country | 0 | - | 4.99 | 386,673 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,939 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,429 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,090,926 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,149 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 239,301 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,556 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,617 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,120 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,390 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,059 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,280 |
| Battle to Country | 0 | - | 4.89 | 30,488 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,840 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,625 |
| Countries by Former Name | 0 | - | 4.99 | 82,410 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,555 |
| Random European Countries on a Map | 0 | - | 4.98 | 212,048 |
| Random African Countries on a Map | 0 | - | 4.98 | 198,517 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,476,513 |
| Vatican City Country Quiz | 0 | - | 4.47 | 31,724 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 259,471 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 379,445 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,560 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,648 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,356 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.73 | 28,429 |
| Countries by Population Range - Tile Select | 0 | - | 4.82 | 43,475 |
