| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 38,373,991 |
| Country Shape Quiz #1 | 0 | - | 4.88 | 802,774 |
| Country Shape Quiz #2 | 0 | - | 4.93 | 366,171 |
| Country Shape Quiz #3 | 0 | - | 4.91 | 259,331 |
| Country Shape Quiz #4 | 0 | - | 4.91 | 190,687 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,253,839 |
| Biggest Countries by Area | 0 | - | 4.99 | 893,266 |
| Countries with the Highest Life Expectancy | 0 | - | 4.87 | 189,420 |
| Spanish-Speaking Countries | 0 | - | 4.87 | 329,804 |
| Island Countries Quiz | 0 | - | 4.99 | 619,875 |
| Northernmost Countries | 0 | - | 4.98 | 319,020 |
| Southernmost Countries of the World | 0 | - | 4.99 | 191,102 |
| Majority Muslim Countries | 0 | - | 4.97 | 304,265 |
| Countries with the Most Borders | 0 | - | 4.97 | 339,684 |
| Countries with the Longest Coastlines | 0 | - | 4.82 | 381,348 |
| Countries That Border Russia | 0 | - | 4.97 | 411,625 |
| Countries and Languages Quiz | 0 | - | 4.86 | 229,030 |
| Communist Countries in History | 0 | - | 4.42 | 421,020 |
| Countries with the Most Billionaires | 0 | - | 4.94 | 271,190 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 306,587 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 180,417 |
| Countries by Borders #1 | 0 | - | 4.99 | 172,135 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 216,207 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 326,022 |
| Countries with the Most Tourists Quiz | 0 | - | 4.93 | 339,483 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 149,860 |
| Former Capitals Quiz | 0 | - | 4.76 | 57,122 |
| One Border Countries | 0 | - | 4.97 | 394,026 |
| NATO Countries Quiz | 0 | - | 4.98 | 215,888 |
| EU Countries Quiz | 0 | - | 4.99 | 219,576 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,910,543 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,450,684 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 139,739 |
| Countries by Independence Day Quiz | 0 | - | 4.43 | 43,801 |
| Countries that Start with A | 0 | - | 4.96 | 1,844,276 |
| Countries that Start with B | 0 | - | 4.93 | 1,983,305 |
| Countries that Start with C | 0 | - | 4.94 | 1,567,350 |
| Countries that Start with D | 0 | - | 4.95 | 551,760 |
| Countries that Start with E | 0 | - | 4.92 | 1,167,947 |
| Countries that Start with G | 0 | - | 4.95 | 1,283,286 |
| Countries that Start with H | 0 | - | 4.92 | 470,398 |
| Countries that Start with I | 0 | - | 4.90 | 1,104,592 |
| Countries that Start with J | 0 | - | 4.97 | 474,387 |
| Countries that Start with K | 0 | - | 4.94 | 669,629 |
| Countries that Start with L | 0 | - | 4.98 | 921,760 |
| Countries that Start with N | 0 | - | 4.89 | 947,385 |
| Countries that Start with P | 0 | - | 4.89 | 1,046,565 |
| Countries that Start with R | 0 | - | 4.38 | 361,805 |
| Countries that Start with S | 0 | - | 4.97 | 1,529,044 |
| Countries that Start with T | 0 | - | 4.84 | 846,084 |
| Countries that Start with U | 0 | - | 4.96 | 758,783 |
| Countries that Start with V | 0 | - | 4.97 | 507,416 |
| Countries that Start with F | 0 | - | 4.70 | 505,401 |
| Countries that Start with M | 0 | - | 4.93 | 1,194,514 |
| Countries that Border China | 0 | - | 4.96 | 225,698 |
| Countries in World War II | 0 | - | 4.44 | 764,565 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 174,219 |
| Countries in World War I | 0 | - | 4.91 | 201,689 |
| Countries with Four Letters | 0 | - | 4.99 | 368,876 |
| Countries of Africa | 0 | - | 5.00 | 2,016,002 |
| Countries of South America | 0 | - | 5.00 | 737,822 |
| Countries of North America Quiz | 0 | - | 5.00 | 819,938 |
| Countries of Oceania | 0 | - | 5.00 | 827,127 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 183,145 |
| Vietnam War Countries | 0 | - | 4.75 | 83,913 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 218,040 |
| Countries Bordering France | 0 | - | 4.82 | 345,678 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 211,549 |
| Countries Bordering Germany | 0 | - | 4.99 | 330,055 |
| Countries Bordering China Since 1914 | 0 | - | 4.90 | 85,009 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 281,373 |
| Countries "Ruled" by King Charles III | 0 | - | 4.75 | 79,109 |
| Countries of the Soviet Union | 0 | - | 4.99 | 177,925 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 97,990 |
| Countries by Clue #1 | 0 | - | 4.86 | 210,354 |
| Countries with Five Letters Quiz | 0 | - | 4.95 | 221,412 |
| Countries with Six Letters Quiz | 0 | - | 4.92 | 168,510 |
| Independence from Whom | 0 | - | 4.99 | 176,908 |
| Countries with Z | 0 | - | 4.98 | 236,313 |
| Holy Roman Empire Countries | 0 | - | 4.60 | 41,173 |
| Political Movements by Country | 0 | - | 4.42 | 66,339 |
| "Land" Countries | 0 | - | 4.98 | 281,479 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 231,259 |
| Most Populous Countries in 2050 | 0 | - | 4.93 | 184,241 |
| Who Controlled These Colonies? | 0 | - | 4.84 | 107,591 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 275,531 |
| Former Countries by Capital | 0 | - | 4.41 | 101,246 |
| Most Populous Countries in 1900 | 0 | - | 4.89 | 157,003 |
| Warsaw Pact Countries | 0 | - | 4.87 | 78,403 |
| Cold War Trivia #1 | 0 | - | 4.32 | 52,539 |
| Cold War Trivia #2 | 0 | - | 4.25 | 24,656 |
| Most Populous Countries in 1950 | 0 | - | 4.44 | 68,494 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 166,046 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 198,782 |
| Historical City to Country | 0 | - | 4.75 | 70,333 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 170,362 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 84,249 |
| Countries in the Ottoman Empire | 0 | - | 4.90 | 65,859 |
| Countries Closest to Canada | 0 | - | 4.89 | 177,532 |
| World Leaders of the Cold War | 0 | - | 4.27 | 21,181 |
| Countries Closest to Italy | 0 | - | 4.98 | 171,445 |
| Countries Closest to Spain | 0 | - | 4.96 | 186,176 |
| Countries Settled by Vikings | 0 | - | 4.94 | 107,958 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 372,085 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 207,868 |
| WWII Geography | 0 | - | 4.78 | 95,386 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.93 | 4,808,301 |
| Soviet Leaders 1917–1991 | 0 | - | 4.38 | 83,833 |
| Countries that Bordered the USSR | 0 | - | 4.91 | 137,882 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 174,217 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 197,429 |
| Countries Invaded by the USSR | 0 | - | 4.20 | 83,703 |
| Former Countries | 0 | - | 4.63 | 120,283 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 238,104 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.92 | 170,236 |
| Cold War Decoder | 0 | - | 4.63 | 45,439 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 186,868 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 67,524 |
| Guerrillas by Country | 0 | - | 4.47 | 37,288 |
| Country Chain | 0 | - | 4.91 | 170,874 |
| Countries Bordering "U" Countries | 0 | - | 4.75 | 17,944 |
| World Map without 12 Countries | 0 | - | 4.96 | 293,518 |
| Neutral European Countries of WWII | 0 | - | 4.94 | 124,250 |
| Every Country Shape | 0 | - | 5.00 | 358,106 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,207,651 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 236,379 |
| Countries with Megacities | 0 | - | 4.99 | 188,252 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 190,969 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 190,636 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 195,462 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 180,793 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,919,059 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 245,228 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 72,884 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.96 | 169,633 |
| One Country By Letter By Continent | 0 | - | 4.99 | 61,205 |
| Most Populous Countries by Year | 0 | - | 4.76 | 87,904 |
| Largest Countries with No Borders | 0 | - | 4.97 | 175,061 |
| Countries of Europe After World War II | 0 | - | 4.98 | 161,716 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 130,466 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 205,029 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 199,509 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 216,557 |
| 2016 News Stories - Name the Country | 0 | - | 4.43 | 21,660 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 47,388 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 176,761 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 79,256 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 65,250 |
| Countries of Asia in 1900 | 0 | - | 4.47 | 51,458 |
| Biggest British Empire Countries | 0 | - | 4.50 | 75,699 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 88,281 |
| Soviet Union Country Quiz | 0 | - | 4.86 | 63,729 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 170,235 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.19 | 37,740 |
| Flags of the Countries that Start with A | 0 | - | 4.95 | 101,863 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,766 |
| Flags of the Countries that Start with C | 0 | - | 4.91 | 112,712 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 73,757 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.74 | 66,661 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.91 | 64,977 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 52,066 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 105,867 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 132,283 |
| Most-Visited Countries by Popes | 0 | - | 4.51 | 59,227 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.80 | 71,575 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.84 | 96,891 |
| 2017 News Stories - Name the Country | 0 | - | 4.43 | 26,207 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.93 | 70,500 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.79 | 70,372 |
| Countries by Emojis | 0 | - | 4.99 | 193,865 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 279,825 |
| Country by Photo of its Leader #1 | 0 | - | 4.68 | 86,450 |
| Roman Provinces on a Map | 0 | - | 4.68 | 29,759 |
| Countries of the World in 1900 | 0 | - | 4.85 | 60,379 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 171,589 |
| Random Flag to Country | 0 | - | 4.99 | 472,135 |
| Name a Valid Country #1 | 0 | - | 4.99 | 211,869 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.52 | 44,821 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 161,659 |
| Name a Valid Country #2 | 0 | - | 4.97 | 180,234 |
| Name a Valid Country #3 | 0 | - | 4.98 | 182,229 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,243,287 |
| Countries of the German Empire | 0 | - | 4.46 | 31,402 |
| Countries in the Byzantine Empire | 0 | - | 4.93 | 64,164 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 269,429 |
| Countries of Europe in 1444 | 0 | - | 4.93 | 82,273 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 196,417 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 178,131 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 105,432 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 187,998 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 119,567 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 83,724 |
| Battle to Country | 0 | - | 4.87 | 33,258 |
| Countries of the Italian Empire | 0 | - | 4.20 | 23,709 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 83,800 |
| Countries by Former Name | 0 | - | 4.98 | 89,607 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 65,346 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 193,776 |
| Random European Countries on a Map | 0 | - | 4.98 | 245,077 |
| Random African Countries on a Map | 0 | - | 4.99 | 231,838 |
