| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,242,447 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 737,348 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 344,105 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,352 |
| Country Shape Quiz #4 | 0 | - | 4.90 | 180,174 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,168,549 |
| Biggest Countries by Area | 0 | - | 4.99 | 829,552 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,893 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,878 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,653 |
| Island Countries Quiz | 0 | - | 4.99 | 577,528 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,554 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,217 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,816 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,278 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 353,012 |
| Countries That Border Russia | 0 | - | 4.98 | 368,560 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,691 |
| Communist Countries in History | 0 | - | 4.48 | 383,887 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,789 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,226 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,564 |
| Countries by Borders #1 | 0 | - | 5.00 | 154,452 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,423 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,918 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,243 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,013 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,519 |
| One Border Countries | 0 | - | 4.98 | 359,559 |
| NATO Countries Quiz | 0 | - | 4.97 | 202,014 |
| EU Countries Quiz | 0 | - | 4.99 | 207,118 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,478,620 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,255,386 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,547 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,940 |
| Countries that Start with A | 0 | - | 4.96 | 1,632,429 |
| Countries that Start with B | 0 | - | 4.94 | 1,770,002 |
| Countries that Start with C | 0 | - | 4.95 | 1,402,473 |
| Countries that Start with D | 0 | - | 4.96 | 464,822 |
| Countries that Start with E | 0 | - | 4.93 | 1,034,467 |
| Countries that Start with G | 0 | - | 4.95 | 1,132,060 |
| Countries that Start with H | 0 | - | 4.93 | 391,661 |
| Countries that Start with I | 0 | - | 4.90 | 978,247 |
| Countries that Start with J | 0 | - | 4.96 | 395,002 |
| Countries that Start with K | 0 | - | 4.94 | 573,337 |
| Countries that Start with L | 0 | - | 4.98 | 814,966 |
| Countries that Start with N | 0 | - | 4.90 | 836,176 |
| Countries that Start with P | 0 | - | 4.94 | 924,154 |
| Countries that Start with R | 0 | - | 4.42 | 300,716 |
| Countries that Start with S | 0 | - | 4.96 | 1,358,870 |
| Countries that Start with T | 0 | - | 4.89 | 760,327 |
| Countries that Start with U | 0 | - | 4.97 | 685,990 |
| Countries that Start with V | 0 | - | 4.97 | 457,042 |
| Countries that Start with F | 0 | - | 4.76 | 425,014 |
| Countries that Start with M | 0 | - | 4.95 | 1,062,249 |
| Countries that Border China | 0 | - | 4.97 | 212,294 |
| Countries in World War II | 0 | - | 4.48 | 681,674 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 165,172 |
| Countries in World War I | 0 | - | 4.91 | 183,115 |
| Countries with Four Letters | 0 | - | 4.99 | 321,525 |
| Countries of Africa | 0 | - | 5.00 | 1,739,248 |
| Countries of South America | 0 | - | 5.00 | 625,253 |
| Countries of North America Quiz | 0 | - | 5.00 | 708,740 |
| Countries of Oceania | 0 | - | 5.00 | 714,983 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 155,474 |
| Vietnam War Countries | 0 | - | 4.78 | 76,793 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,626 |
| Countries Bordering France | 0 | - | 4.90 | 309,618 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,904 |
| Countries Bordering Germany | 0 | - | 4.99 | 293,009 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,307 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,283 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,149 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,451 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,174 |
| Countries by Clue #1 | 0 | - | 4.89 | 196,006 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,496 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 158,015 |
| Independence from Whom | 0 | - | 4.99 | 153,085 |
| Countries with Z | 0 | - | 4.99 | 223,255 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,588 |
| Political Movements by Country | 0 | - | 4.50 | 62,023 |
| "Land" Countries | 0 | - | 4.98 | 265,318 |
| European Countries by Clue | 0 | - | 4.94 | 154,587 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 217,900 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,544 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,717 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 247,033 |
| Former Countries by Capital | 0 | - | 4.41 | 97,456 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,195 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,687 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,862 |
| Countries with the Most Forest | 0 | - | 4.89 | 125,846 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,454 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 89,087 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 156,501 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.51 | 31,680 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,874 |
| Historical City to Country | 0 | - | 4.81 | 66,451 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,992 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,779 |
| Countries Closest to Canada | 0 | - | 4.93 | 156,995 |
| Countries Closest to Spain | 0 | - | 4.96 | 170,807 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,895 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 343,030 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,260 |
| WWII Geography | 0 | - | 4.73 | 89,031 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,334,855 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,077 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 163,259 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,945 |
| Countries with the Most HIV | 0 | - | 4.42 | 39,451 |
| Former Countries | 0 | - | 4.52 | 100,495 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,866 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 173,213 |
| Top 10 Solar Power Countries | 0 | - | 4.81 | 51,484 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,290 |
| Country Chain | 0 | - | 4.92 | 156,829 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 998,670 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,799 |
| Countries with Glaciers | 0 | - | 4.97 | 72,726 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,979 |
| Every Country Shape | 0 | - | 4.99 | 314,162 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,884,278 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,819 |
| Countries with Megacities | 0 | - | 4.99 | 176,185 |
| Every European Country Shape | 0 | - | 4.94 | 152,746 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 165,367 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 170,547 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,472 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 153,426 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,651,749 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 214,124 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,098 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,645 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,201 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,694 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,644 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,578 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 171,751 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 176,458 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,637 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,875 |
| Tropical Rainforest Countries | 0 | - | 4.48 | 64,263 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.86 | 44,338 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 160,124 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,966 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,540 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 47,991 |
| Northernmost Countries Without Glaciers | 0 | - | 4.72 | 16,542 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,564 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,045 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,565 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,687 |
| Albert Einstein Quiz | 0 | - | 4.56 | 11,275 |
| Countries with the Most Malaria Deaths | 0 | - | 4.36 | 29,482 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.57 | 54,049 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,556 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,166 |
| Most Forested European Countries | 0 | - | 4.74 | 60,410 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,725 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,589 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,373 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,445 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,996 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,196 |
| Countries with the Most Mangroves | 0 | - | 4.47 | 29,446 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,766 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,114 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,893 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,341 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,037 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,165 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,696 |
| Countries by Emojis | 0 | - | 4.99 | 158,712 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 248,603 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,777 |
| Roman Provinces on a Map | 0 | - | 4.73 | 25,731 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,584 |
| Random Flag to Country | 0 | - | 4.99 | 388,894 |
| Countries with the Most Forest A-Z | 0 | - | 4.50 | 45,656 |
| Name a Valid Country #1 | 0 | - | 4.99 | 172,785 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,086 |
| Worst Plastic Polluting Countries | 0 | - | 4.46 | 53,626 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,185 |
| Name a Valid Country #2 | 0 | - | 4.97 | 151,520 |
| Name a Valid Country #3 | 0 | - | 4.98 | 162,286 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,097,329 |
| Countries of the German Empire | 0 | - | 4.36 | 26,695 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,363 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,606 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,029 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 174,871 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 159,277 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,217 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 167,902 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,871 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,499 |
| Battle to Country | 0 | - | 4.89 | 30,632 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,972 |
