| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,193,837 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 736,565 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,848 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,185 |
| Country Shape Quiz #4 | 0 | - | 4.90 | 180,049 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,167,556 |
| Biggest Countries by Area | 0 | - | 4.99 | 828,778 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,826 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,794 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,443 |
| Island Countries Quiz | 0 | - | 4.99 | 577,048 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,405 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,110 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,639 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,001 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,855 |
| Countries That Border Russia | 0 | - | 4.98 | 368,134 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,559 |
| Communist Countries in History | 0 | - | 4.48 | 383,470 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,648 |
| Islands by Country #1 | 0 | - | 4.86 | 149,440 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,048 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,480 |
| Countries by Borders #1 | 0 | - | 5.00 | 154,311 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,310 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,737 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,052 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,911 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,482 |
| One Border Countries | 0 | - | 4.98 | 359,092 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,868 |
| EU Countries Quiz | 0 | - | 4.99 | 206,979 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,473,192 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,252,982 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,444 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,920 |
| Countries that Start with A | 0 | - | 4.96 | 1,630,442 |
| Countries that Start with B | 0 | - | 4.94 | 1,767,994 |
| Countries that Start with C | 0 | - | 4.95 | 1,400,933 |
| Countries that Start with D | 0 | - | 4.96 | 464,010 |
| Countries that Start with E | 0 | - | 4.93 | 1,033,236 |
| Countries that Start with G | 0 | - | 4.95 | 1,130,721 |
| Countries that Start with H | 0 | - | 4.92 | 391,023 |
| Countries that Start with I | 0 | - | 4.90 | 977,187 |
| Countries that Start with J | 0 | - | 4.96 | 394,329 |
| Countries that Start with K | 0 | - | 4.94 | 572,485 |
| Countries that Start with L | 0 | - | 4.98 | 813,954 |
| Countries that Start with N | 0 | - | 4.90 | 835,142 |
| Countries that Start with P | 0 | - | 4.94 | 923,041 |
| Countries that Start with R | 0 | - | 4.42 | 300,190 |
| Countries that Start with S | 0 | - | 4.96 | 1,357,258 |
| Countries that Start with T | 0 | - | 4.89 | 759,439 |
| Countries that Start with U | 0 | - | 4.97 | 685,209 |
| Countries that Start with V | 0 | - | 4.97 | 456,485 |
| Countries that Start with F | 0 | - | 4.76 | 424,376 |
| Countries that Start with M | 0 | - | 4.95 | 1,061,025 |
| Countries that Border China | 0 | - | 4.97 | 212,111 |
| Top Crude Oil Producing Countries | 0 | - | 4.84 | 145,313 |
| Countries in World War II | 0 | - | 4.48 | 680,741 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 165,078 |
| Countries in World War I | 0 | - | 4.92 | 182,930 |
| Countries with Four Letters | 0 | - | 4.99 | 321,255 |
| Countries of Africa | 0 | - | 5.00 | 1,736,061 |
| Countries of South America | 0 | - | 5.00 | 624,034 |
| Countries of North America Quiz | 0 | - | 5.00 | 707,422 |
| Countries of Oceania | 0 | - | 5.00 | 713,620 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 155,355 |
| Vietnam War Countries | 0 | - | 4.78 | 76,726 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,475 |
| Countries Bordering France | 0 | - | 4.90 | 309,270 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,775 |
| Countries Bordering Germany | 0 | - | 4.99 | 292,526 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,200 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,126 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,091 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,290 |
| Countries in their Native Language | 0 | - | 4.97 | 149,725 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,099 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,878 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,375 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 157,917 |
| Independence from Whom | 0 | - | 4.99 | 152,967 |
| Countries with Z | 0 | - | 4.99 | 223,091 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,545 |
| Political Movements by Country | 0 | - | 4.50 | 61,981 |
| "Land" Countries | 0 | - | 4.98 | 265,090 |
| European Countries by Clue | 0 | - | 4.94 | 154,472 |
| Countries with Letters Missing | 0 | - | 4.97 | 143,588 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 217,315 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,425 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,638 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,822 |
| Former Countries by Capital | 0 | - | 4.41 | 97,408 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,091 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,617 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,834 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,398 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 156,408 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,688 |
| Historical City to Country | 0 | - | 4.81 | 66,414 |
| Biggest Countries by Area A-Z | 0 | - | 4.94 | 148,248 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,889 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,731 |
| Countries With the Most Languages | 0 | - | 4.90 | 150,474 |
| Countries Closest to Canada | 0 | - | 4.93 | 156,721 |
| Countries Closest to Italy | 0 | - | 4.97 | 148,242 |
| Countries Closest to Spain | 0 | - | 4.96 | 170,578 |
| Countries Ending in "IA" | 0 | - | 4.99 | 150,334 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,822 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 342,672 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,081 |
| WWII Geography | 0 | - | 4.73 | 88,764 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,329,823 |
| Countries That End in Y | 0 | - | 4.89 | 148,463 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,977 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 163,119 |
| Countries Based on First Two Letters #1 | 0 | - | 4.98 | 143,889 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,801 |
| Former Countries | 0 | - | 4.52 | 100,423 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,701 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.94 | 150,632 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 173,067 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 143,755 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 143,767 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,229 |
| Country Chain | 0 | - | 4.92 | 156,718 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 997,735 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,619 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,848 |
| Every Country Shape | 0 | - | 4.99 | 313,717 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,880,792 |
| Five Biggest Economies by Continent | 0 | - | 4.97 | 144,378 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,632 |
| Countries with Megacities | 0 | - | 4.99 | 175,998 |
| Every European Country Shape | 0 | - | 4.94 | 152,592 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 165,256 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 170,321 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,294 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 143,026 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 153,119 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,648,421 |
| Countries of the Middle East | 0 | - | 4.96 | 148,359 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.93 | 211,748 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,986 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.96 | 142,820 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,375 |
| Most Populous Countries by Year | 0 | - | 4.77 | 79,090 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,572 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,487 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,422 |
| Top 10 Coldest European Countries | 0 | - | 4.93 | 143,800 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 171,577 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 176,276 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,301 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,837 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 159,970 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,899 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,489 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 47,949 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,522 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,962 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,491 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,552 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,431 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,157 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,580 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,538 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,324 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,401 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,951 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,094 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,607 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,056 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,785 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,194 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,010 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,078 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,600 |
| Countries by Emojis | 0 | - | 4.99 | 158,506 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 247,969 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,692 |
| Roman Provinces on a Map | 0 | - | 4.72 | 25,686 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,467 |
| Random Flag to Country | 0 | - | 4.99 | 388,243 |
| Name a Valid Country #1 | 0 | - | 4.99 | 172,534 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,041 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,996 |
| Name a Valid Country #2 | 0 | - | 4.97 | 151,356 |
| Name a Valid Country #3 | 0 | - | 4.98 | 162,120 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,095,347 |
| Countries of the German Empire | 0 | - | 4.36 | 26,674 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,306 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,172 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,907 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 174,518 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 159,078 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,074 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 167,590 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,679 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,389 |
