| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,087,311 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 734,764 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,269 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 245,796 |
| Country Shape Quiz #4 | 0 | - | 4.90 | 179,748 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,165,256 |
| Biggest Countries by Area | 0 | - | 4.99 | 827,144 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,629 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,568 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.91 | 294,929 |
| Island Countries Quiz | 0 | - | 4.99 | 576,012 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,749 |
| Southernmost Countries of the World | 0 | - | 4.99 | 181,865 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,154 |
| Countries with the Most Borders | 0 | - | 4.96 | 317,398 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,328 |
| Countries That Border Russia | 0 | - | 4.98 | 367,384 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,265 |
| Communist Countries in History | 0 | - | 4.47 | 382,511 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,096 |
| Islands by Country #1 | 0 | - | 4.86 | 149,205 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 286,263 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,241 |
| Countries by Borders #1 | 0 | - | 5.00 | 154,074 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,964 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,171 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,590 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,673 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,435 |
| One Border Countries | 0 | - | 4.98 | 358,232 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,509 |
| EU Countries Quiz | 0 | - | 4.99 | 206,657 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,461,038 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,247,730 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 130,975 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,863 |
| Countries that Start with A | 0 | - | 4.96 | 1,626,100 |
| Countries that Start with B | 0 | - | 4.94 | 1,763,580 |
| Countries that Start with C | 0 | - | 4.95 | 1,397,463 |
| Countries that Start with D | 0 | - | 4.96 | 462,271 |
| Countries that Start with E | 0 | - | 4.93 | 1,030,498 |
| Countries that Start with G | 0 | - | 4.95 | 1,127,781 |
| Countries that Start with H | 0 | - | 4.92 | 389,467 |
| Countries that Start with I | 0 | - | 4.90 | 974,802 |
| Countries that Start with J | 0 | - | 4.96 | 392,748 |
| Countries that Start with K | 0 | - | 4.95 | 570,464 |
| Countries that Start with L | 0 | - | 4.98 | 811,666 |
| Countries that Start with N | 0 | - | 4.90 | 832,946 |
| Countries that Start with P | 0 | - | 4.94 | 920,530 |
| Countries that Start with R | 0 | - | 4.41 | 298,939 |
| Countries that Start with S | 0 | - | 4.97 | 1,353,792 |
| Countries that Start with T | 0 | - | 4.89 | 757,386 |
| Countries that Start with U | 0 | - | 4.97 | 683,347 |
| Countries that Start with V | 0 | - | 4.97 | 455,239 |
| Countries that Start with F | 0 | - | 4.74 | 422,784 |
| Countries that Start with M | 0 | - | 4.95 | 1,058,378 |
| Countries that Border China | 0 | - | 4.97 | 211,764 |
| Countries in World War II | 0 | - | 4.47 | 678,709 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 164,739 |
| Countries in World War I | 0 | - | 4.92 | 182,487 |
| Countries with Four Letters | 0 | - | 4.99 | 320,651 |
| Countries of Africa | 0 | - | 5.00 | 1,728,964 |
| Countries of South America | 0 | - | 5.00 | 621,204 |
| Countries of North America Quiz | 0 | - | 5.00 | 704,354 |
| Countries of Oceania | 0 | - | 5.00 | 710,697 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 155,080 |
| Vietnam War Countries | 0 | - | 4.78 | 76,549 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 205,968 |
| Countries Bordering France | 0 | - | 4.90 | 308,669 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,190 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,718 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,017 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,768 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 64,959 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,888 |
| Countries in their Native Language | 0 | - | 4.97 | 149,488 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,874 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,587 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,106 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 157,676 |
| Independence from Whom | 0 | - | 4.99 | 152,697 |
| Countries with Z | 0 | - | 4.99 | 222,775 |
| Holy Roman Empire Countries | 0 | - | 4.56 | 37,431 |
| Political Movements by Country | 0 | - | 4.49 | 61,857 |
| "Land" Countries | 0 | - | 4.98 | 264,420 |
| European Countries by Clue | 0 | - | 4.94 | 154,243 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.94 | 206,265 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,128 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,446 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,356 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,836 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,475 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,759 |
| Cold War Trivia #1 | 0 | - | 4.34 | 49,512 |
| Cold War Trivia #2 | 0 | - | 4.17 | 22,922 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,253 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 156,176 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,281 |
| Historical City to Country | 0 | - | 4.81 | 66,298 |
| Biggest Countries by Area A-Z | 0 | - | 4.94 | 148,030 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,633 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,612 |
| Countries With the Most Languages | 0 | - | 4.90 | 150,074 |
| Countries Closest to Canada | 0 | - | 4.93 | 156,279 |
| World Leaders of the Cold War | 0 | - | 4.26 | 19,417 |
| Countries Closest to Italy | 0 | - | 4.97 | 147,786 |
| Countries Closest to Spain | 0 | - | 4.96 | 170,053 |
| Countries Ending in "IA" | 0 | - | 4.99 | 150,003 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,665 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 341,920 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,708 |
| WWII Geography | 0 | - | 4.73 | 88,451 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,318,250 |
| Countries That End in Y | 0 | - | 4.89 | 148,224 |
| Soviet Leaders 1917–1991 | 0 | - | 4.34 | 65,124 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,779 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 162,796 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,465 |
| Countries Invaded by the USSR | 0 | - | 4.22 | 59,957 |
| Former Countries | 0 | - | 4.52 | 100,269 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,330 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.94 | 150,281 |
| Cold War Decoder | 0 | - | 4.54 | 33,994 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 172,754 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,078 |
| Guerrillas by Country | 0 | - | 4.42 | 34,823 |
| Country Chain | 0 | - | 4.92 | 156,445 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 995,402 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,267 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,500 |
| Every Country Shape | 0 | - | 4.99 | 312,589 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,872,580 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,207 |
| Countries with Megacities | 0 | - | 4.99 | 174,866 |
| Every European Country Shape | 0 | - | 4.94 | 152,237 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 164,976 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 169,815 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,883 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 152,438 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,641,074 |
| Countries of the Middle East | 0 | - | 4.96 | 147,901 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 191,232 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,740 |
| One Country By Letter By Continent | 0 | - | 4.99 | 35,693 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,849 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,278 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,090 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 111,945 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 171,179 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 175,840 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 187,563 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,756 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 159,563 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,733 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,366 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 47,846 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,445 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,770 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,327 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,186 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.16 | 33,607 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,162 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,143 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,276 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,420 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,202 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,299 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,845 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,777 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,301 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,928 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,507 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 84,890 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 23,958 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,845 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,364 |
| Countries by Emojis | 0 | - | 4.99 | 157,972 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 247,218 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,522 |
| Roman Provinces on a Map | 0 | - | 4.72 | 25,584 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,194 |
| Random Flag to Country | 0 | - | 4.99 | 386,907 |
| Name a Valid Country #1 | 0 | - | 4.99 | 171,887 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,949 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,498 |
| Name a Valid Country #2 | 0 | - | 4.97 | 150,467 |
| Name a Valid Country #3 | 0 | - | 4.98 | 161,606 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,091,580 |
| Countries of the German Empire | 0 | - | 4.36 | 26,583 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,169 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 239,464 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,617 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 173,992 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 158,619 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,678 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 166,765 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,209 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,100 |
| Battle to Country | 0 | - | 4.89 | 30,511 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,874 |
