| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,055,089 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 734,236 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,076 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 245,668 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,164,561 |
| Biggest Countries by Area | 0 | - | 4.99 | 826,582 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.91 | 294,772 |
| Island Countries Quiz | 0 | - | 4.99 | 575,724 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,641 |
| Southernmost Countries of the World | 0 | - | 4.99 | 181,804 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,027 |
| Countries with the Most Borders | 0 | - | 4.96 | 317,221 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,186 |
| Countries That Border Russia | 0 | - | 4.98 | 367,138 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,172 |
| Communist Countries in History | 0 | - | 4.47 | 382,244 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 254,958 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 286,145 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,888 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,027 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,460 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 132,592 |
| One Border Countries | 0 | - | 4.98 | 357,964 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,394 |
| EU Countries Quiz | 0 | - | 4.99 | 206,453 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,457,699 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,246,200 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 130,902 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,847 |
| Countries that Start with A | 0 | - | 4.96 | 1,624,742 |
| Countries that Start with B | 0 | - | 4.94 | 1,762,274 |
| Countries that Start with C | 0 | - | 4.95 | 1,396,332 |
| Countries that Start with D | 0 | - | 4.96 | 461,676 |
| Countries that Start with E | 0 | - | 4.93 | 1,029,614 |
| Countries that Start with G | 0 | - | 4.95 | 1,126,850 |
| Countries that Start with H | 0 | - | 4.92 | 388,945 |
| Countries that Start with I | 0 | - | 4.90 | 974,035 |
| Countries that Start with J | 0 | - | 4.96 | 392,247 |
| Countries that Start with K | 0 | - | 4.95 | 569,442 |
| Countries that Start with L | 0 | - | 4.98 | 811,005 |
| Countries that Start with N | 0 | - | 4.90 | 832,251 |
| Countries that Start with P | 0 | - | 4.94 | 919,747 |
| Countries that Start with R | 0 | - | 4.41 | 298,536 |
| Countries that Start with S | 0 | - | 4.97 | 1,352,765 |
| Countries that Start with T | 0 | - | 4.89 | 756,780 |
| Countries that Start with U | 0 | - | 4.97 | 682,776 |
| Countries that Start with V | 0 | - | 4.97 | 454,845 |
| Countries that Start with F | 0 | - | 4.74 | 422,220 |
| Countries that Start with M | 0 | - | 4.95 | 1,057,611 |
| Countries that Border China | 0 | - | 4.97 | 211,348 |
| Countries in World War II | 0 | - | 4.47 | 678,055 |
| Countries in World War I | 0 | - | 4.92 | 182,348 |
| Countries with Four Letters | 0 | - | 4.99 | 320,472 |
| Countries of Africa | 0 | - | 5.00 | 1,726,930 |
| Countries of South America | 0 | - | 5.00 | 620,441 |
| Countries of North America Quiz | 0 | - | 5.00 | 703,634 |
| Countries of Oceania | 0 | - | 5.00 | 709,758 |
| Vietnam War Countries | 0 | - | 4.78 | 76,500 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 205,869 |
| Countries Bordering France | 0 | - | 4.90 | 308,490 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,076 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,532 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 69,942 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,149 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,648 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 64,923 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,777 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,818 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,488 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,017 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,366 |
| Independence from Whom | 0 | - | 4.99 | 152,599 |
| Countries with Z | 0 | - | 4.99 | 222,669 |
| Holy Roman Empire Countries | 0 | - | 4.56 | 37,394 |
| Political Movements by Country | 0 | - | 4.49 | 61,819 |
| "Land" Countries | 0 | - | 4.98 | 263,926 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,397 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 202,354 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,040 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,392 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,193 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,769 |
| Biggest Cities in History | 0 | - | 4.49 | 70,300 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,432 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,729 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,195 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,211 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,156 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,132 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,104 |
| Historical City to Country | 0 | - | 4.81 | 66,264 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,540 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,568 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,616 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 341,703 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,607 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,314,581 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,707 |
| Biggest European Cities by Century | 0 | - | 4.97 | 104,877 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,585 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,827 |
| Former Countries | 0 | - | 4.53 | 100,224 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,070 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,208 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,584 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,431 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,794 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.91 | 59,025 |
| Guerrillas by Country | 0 | - | 4.42 | 34,803 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,522 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 994,747 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,143 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,773 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,401 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.56 | 68,212 |
| Every Country Shape | 0 | - | 4.99 | 312,284 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,869,693 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,273 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,063 |
| Countries with Megacities | 0 | - | 4.99 | 173,341 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,107 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,770 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 126,744 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 122,766 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,638,895 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 191,013 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,465 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,679 |
| One Country By Letter By Continent | 0 | - | 4.99 | 35,448 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,562 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 32,971 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,787 |
| Countries of Europe After World War II | 0 | - | 4.97 | 142,928 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 111,771 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,390 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 71,867 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,370 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,677 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 187,328 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,730 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,682 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,334 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 47,805 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,416 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,706 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,290 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,069 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 75,828 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 86,820 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,099 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,197 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,371 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,157 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,263 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,812 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,654 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,171 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,230 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,180 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,883 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,000 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,409 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 84,796 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 85,841 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,206 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 39,894 |
| 2017 News Stories - Name the Country | 0 | - | 4.47 | 23,927 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,759 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,273 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,748 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 246,978 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,466 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,118 |
| Random Flag to Country | 0 | - | 4.99 | 386,543 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,932 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,378 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,090,572 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,138 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 239,229 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,520 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,573 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,063 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,383 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,007 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,255 |
| Battle to Country | 0 | - | 4.89 | 30,481 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,828 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,621 |
| Countries by Former Name | 0 | - | 4.99 | 82,394 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,526 |
| Random European Countries on a Map | 0 | - | 4.98 | 211,977 |
| Random African Countries on a Map | 0 | - | 4.98 | 198,448 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,473,536 |
| Vatican City Country Quiz | 0 | - | 4.47 | 31,714 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 259,348 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 379,275 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,556 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,621 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,324 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.73 | 28,408 |
