| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,002,695 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 733,396 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 342,785 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 245,499 |
| Country Shape Quiz #4 | 0 | - | 4.90 | 179,492 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,163,418 |
| Biggest Countries by Area | 0 | - | 4.99 | 825,735 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,464 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,241 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.91 | 294,544 |
| Island Countries Quiz | 0 | - | 4.99 | 575,155 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,458 |
| Southernmost Countries of the World | 0 | - | 4.99 | 181,690 |
| Majority Muslim Countries | 0 | - | 4.96 | 280,779 |
| Countries with the Most Borders | 0 | - | 4.96 | 316,968 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 351,944 |
| Countries That Border Russia | 0 | - | 4.98 | 366,762 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,015 |
| Communist Countries in History | 0 | - | 4.47 | 381,772 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 254,742 |
| Islands by Country #1 | 0 | - | 4.86 | 148,804 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 285,901 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,059 |
| Countries by Borders #1 | 0 | - | 5.00 | 153,908 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,772 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 305,770 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,226 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 132,486 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,381 |
| One Border Countries | 0 | - | 4.98 | 357,531 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,179 |
| EU Countries Quiz | 0 | - | 4.99 | 206,298 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,451,974 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,243,598 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 130,797 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,823 |
| Countries that Start with A | 0 | - | 4.96 | 1,622,270 |
| Countries that Start with B | 0 | - | 4.94 | 1,759,760 |
| Countries that Start with C | 0 | - | 4.95 | 1,394,389 |
| Countries that Start with D | 0 | - | 4.96 | 460,677 |
| Countries that Start with E | 0 | - | 4.93 | 1,027,995 |
| Countries that Start with G | 0 | - | 4.95 | 1,125,122 |
| Countries that Start with H | 0 | - | 4.92 | 388,103 |
| Countries that Start with I | 0 | - | 4.90 | 972,675 |
| Countries that Start with J | 0 | - | 4.96 | 391,401 |
| Countries that Start with K | 0 | - | 4.94 | 568,345 |
| Countries that Start with L | 0 | - | 4.98 | 809,782 |
| Countries that Start with N | 0 | - | 4.90 | 831,036 |
| Countries that Start with P | 0 | - | 4.94 | 918,304 |
| Countries that Start with R | 0 | - | 4.41 | 297,797 |
| Countries that Start with S | 0 | - | 4.97 | 1,350,762 |
| Countries that Start with T | 0 | - | 4.88 | 755,597 |
| Countries that Start with U | 0 | - | 4.97 | 681,767 |
| Countries that Start with V | 0 | - | 4.97 | 454,113 |
| Countries that Start with F | 0 | - | 4.74 | 421,310 |
| Countries that Start with M | 0 | - | 4.95 | 1,056,128 |
| Countries that Border China | 0 | - | 4.97 | 211,175 |
| Top Crude Oil Producing Countries | 0 | - | 4.83 | 144,796 |
| Countries in World War II | 0 | - | 4.47 | 677,085 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 164,453 |
| Countries in World War I | 0 | - | 4.92 | 182,125 |
| Countries with Four Letters | 0 | - | 4.99 | 320,152 |
| Countries of Africa | 0 | - | 5.00 | 1,723,251 |
| Countries of South America | 0 | - | 5.00 | 619,206 |
| Countries of North America Quiz | 0 | - | 5.00 | 702,166 |
| Countries of Oceania | 0 | - | 5.00 | 708,165 |
| Countries with the Highest HDI | 0 | - | 4.96 | 124,123 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 154,857 |
| Vietnam War Countries | 0 | - | 4.78 | 76,409 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 205,719 |
| Countries Bordering France | 0 | - | 4.90 | 308,181 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 198,920 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,249 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 69,835 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,484 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 64,849 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,586 |
| Countries in their Native Language | 0 | - | 4.97 | 149,283 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,700 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,306 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 191,851 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 157,466 |
| Independence from Whom | 0 | - | 4.99 | 152,482 |
| Countries with Z | 0 | - | 4.99 | 222,490 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,351 |
| Political Movements by Country | 0 | - | 4.49 | 61,755 |
| "Land" Countries | 0 | - | 4.98 | 262,162 |
| European Countries by Clue | 0 | - | 4.95 | 154,068 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 202,192 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 172,605 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,057 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 245,942 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,642 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,380 |
| Inventions by Country #1 | 0 | - | 4.42 | 41,691 |
| Ten Lowest HDI Countries in Europe | 0 | - | 4.43 | 65,506 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,154 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 155,989 |
| Ten Highest HDI Countries in Africa | 0 | - | 4.76 | 62,390 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 180,978 |
| Historical City to Country | 0 | - | 4.81 | 66,196 |
| Biggest Countries by Area A-Z | 0 | - | 4.94 | 147,808 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,434 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,492 |
| Countries With the Most Languages | 0 | - | 4.90 | 149,761 |
| Countries Closest to Canada | 0 | - | 4.92 | 156,058 |
| Countries Closest to Italy | 0 | - | 4.97 | 147,473 |
| Countries Closest to Spain | 0 | - | 4.96 | 169,735 |
| Countries Ending in "IA" | 0 | - | 4.99 | 149,653 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,551 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 341,343 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,436 |
| WWII Geography | 0 | - | 4.73 | 88,316 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,307,923 |
| Countries That End in Y | 0 | - | 4.89 | 147,970 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,599 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 162,544 |
| Countries Based on First Two Letters #1 | 0 | - | 4.98 | 143,309 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,159 |
| Former Countries | 0 | - | 4.56 | 100,156 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,008 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.94 | 149,797 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 172,445 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.91 | 58,960 |
| Guerrillas by Country | 0 | - | 4.42 | 34,764 |
| Country Chain | 0 | - | 4.92 | 156,226 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 993,547 |
| World Map without 12 Countries | 0 | - | 4.96 | 277,964 |
| Five Highest HDI Countries by Continent | 0 | - | 4.46 | 47,440 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,256 |
| Every Country Shape | 0 | - | 4.99 | 311,677 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,865,200 |
| Five Biggest Economies by Continent | 0 | - | 4.97 | 143,810 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 216,842 |
| Countries with Megacities | 0 | - | 4.99 | 158,145 |
| Every European Country Shape | 0 | - | 4.94 | 151,867 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 164,695 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 169,333 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,537 |
| Highest HDI Countries with Exceptions | 0 | - | 4.57 | 54,936 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 151,957 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,635,230 |
| Countries of the Middle East | 0 | - | 4.96 | 147,512 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 190,749 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,588 |
| One Country By Letter By Continent | 0 | - | 4.99 | 35,123 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,646 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,043 |
| Countries of Europe After World War II | 0 | - | 4.97 | 142,703 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 111,547 |
| Lowest HDI Countries with Exceptions | 0 | - | 4.74 | 37,110 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 170,841 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 175,477 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 186,919 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,700 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 159,223 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,627 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,262 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 47,758 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,371 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,610 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,200 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 141,894 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 89,983 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,125 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,073 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,305 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,109 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,204 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,752 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,268 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 115,998 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,770 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,292 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 84,640 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 42,397 |
| 2017 News Stories - Name the Country | 0 | - | 4.47 | 23,902 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,667 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,170 |
| Countries by Emojis | 0 | - | 4.99 | 157,478 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 246,560 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,371 |
| Roman Provinces on a Map | 0 | - | 4.72 | 25,521 |
| Countries of the World in 1900 | 0 | - | 4.87 | 51,996 |
| Random Flag to Country | 0 | - | 4.99 | 385,750 |
| Name a Valid Country #1 | 0 | - | 4.99 | 171,505 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,891 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,189 |
| Name a Valid Country #2 | 0 | - | 4.97 | 150,163 |
| Name a Valid Country #3 | 0 | - | 4.98 | 161,298 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,089,095 |
| Countries of the German Empire | 0 | - | 4.36 | 26,493 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,088 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 238,921 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,376 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 173,282 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 158,287 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,424 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 166,308 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 104,865 |
