| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,086,444 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 734,748 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,266 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 245,791 |
| Country Shape Quiz #4 | 0 | - | 4.90 | 179,743 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,165,236 |
| Biggest Countries by Area | 0 | - | 4.99 | 827,115 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,627 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,563 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.91 | 294,921 |
| Island Countries Quiz | 0 | - | 4.99 | 576,002 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,748 |
| Southernmost Countries of the World | 0 | - | 4.99 | 181,865 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,152 |
| Countries with the Most Borders | 0 | - | 4.96 | 317,392 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,323 |
| Countries That Border Russia | 0 | - | 4.98 | 367,376 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,264 |
| Communist Countries in History | 0 | - | 4.47 | 382,503 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,088 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 286,261 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,239 |
| Countries by Borders #1 | 0 | - | 5.00 | 154,073 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,964 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,165 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,589 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,672 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,435 |
| One Border Countries | 0 | - | 4.98 | 358,223 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,508 |
| EU Countries Quiz | 0 | - | 4.99 | 206,655 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,460,905 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,247,687 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 130,973 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,862 |
| Countries that Start with A | 0 | - | 4.96 | 1,626,054 |
| Countries that Start with B | 0 | - | 4.94 | 1,763,526 |
| Countries that Start with C | 0 | - | 4.95 | 1,397,423 |
| Countries that Start with D | 0 | - | 4.96 | 462,244 |
| Countries that Start with E | 0 | - | 4.93 | 1,030,466 |
| Countries that Start with G | 0 | - | 4.95 | 1,127,746 |
| Countries that Start with H | 0 | - | 4.92 | 389,446 |
| Countries that Start with I | 0 | - | 4.90 | 974,777 |
| Countries that Start with J | 0 | - | 4.96 | 392,730 |
| Countries that Start with K | 0 | - | 4.95 | 570,435 |
| Countries that Start with L | 0 | - | 4.98 | 811,645 |
| Countries that Start with N | 0 | - | 4.90 | 832,925 |
| Countries that Start with P | 0 | - | 4.94 | 920,493 |
| Countries that Start with R | 0 | - | 4.41 | 298,922 |
| Countries that Start with S | 0 | - | 4.97 | 1,353,747 |
| Countries that Start with T | 0 | - | 4.89 | 757,365 |
| Countries that Start with U | 0 | - | 4.97 | 683,334 |
| Countries that Start with V | 0 | - | 4.97 | 455,230 |
| Countries that Start with F | 0 | - | 4.74 | 422,758 |
| Countries that Start with M | 0 | - | 4.95 | 1,058,340 |
| Countries that Border China | 0 | - | 4.97 | 211,763 |
| Countries in World War II | 0 | - | 4.47 | 678,694 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 164,737 |
| Countries in World War I | 0 | - | 4.92 | 182,486 |
| Countries with Four Letters | 0 | - | 4.99 | 320,651 |
| Countries of Africa | 0 | - | 5.00 | 1,728,917 |
| Countries of South America | 0 | - | 5.00 | 621,178 |
| Countries of North America Quiz | 0 | - | 5.00 | 704,324 |
| Countries of Oceania | 0 | - | 5.00 | 710,680 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 155,080 |
| Vietnam War Countries | 0 | - | 4.78 | 76,546 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 205,966 |
| Countries Bordering France | 0 | - | 4.90 | 308,666 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,183 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,717 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,017 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,763 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 64,959 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,887 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,873 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,584 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,102 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 157,674 |
| Independence from Whom | 0 | - | 4.99 | 152,692 |
| Countries with Z | 0 | - | 4.99 | 222,772 |
| Holy Roman Empire Countries | 0 | - | 4.56 | 37,430 |
| Political Movements by Country | 0 | - | 4.49 | 61,857 |
| "Land" Countries | 0 | - | 4.98 | 264,407 |
| European Countries by Clue | 0 | - | 4.94 | 154,241 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.94 | 206,226 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,127 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,444 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,348 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,833 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,475 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,759 |
| Countries with the Most Forest | 0 | - | 4.89 | 125,617 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,252 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 88,862 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 156,175 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.51 | 31,571 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,276 |
| Historical City to Country | 0 | - | 4.81 | 66,297 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,630 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,612 |
| Countries Closest to Canada | 0 | - | 4.93 | 156,274 |
| Countries Closest to Spain | 0 | - | 4.96 | 170,052 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,664 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 341,917 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,706 |
| WWII Geography | 0 | - | 4.73 | 88,450 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,318,069 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,778 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 162,792 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,462 |
| Countries with the Most HIV | 0 | - | 4.42 | 39,364 |
| Former Countries | 0 | - | 4.52 | 100,267 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,330 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 172,750 |
| Top 10 Solar Power Countries | 0 | - | 4.79 | 51,354 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,078 |
| Guerrillas by Country | 0 | - | 4.42 | 34,821 |
| Country Chain | 0 | - | 4.92 | 156,439 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 995,387 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,261 |
| Countries with Glaciers | 0 | - | 4.97 | 72,550 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,496 |
| Every Country Shape | 0 | - | 4.99 | 312,581 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,872,501 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,204 |
| Countries with Megacities | 0 | - | 4.99 | 174,849 |
| Every European Country Shape | 0 | - | 4.94 | 152,236 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 164,973 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 169,812 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,877 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 152,433 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,641,005 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 191,227 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,739 |
| One Country By Letter By Continent | 0 | - | 4.99 | 35,677 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,847 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,273 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,087 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 111,943 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 171,173 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 175,837 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 187,561 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,754 |
| Tropical Rainforest Countries | 0 | - | 4.47 | 64,162 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.86 | 44,218 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 159,560 |
| 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 | 47,845 |
| Northernmost Countries Without Glaciers | 0 | - | 4.72 | 16,453 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,445 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,769 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,327 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,185 |
| Albert Einstein Quiz | 0 | - | 4.56 | 11,216 |
| Countries with the Most Malaria Deaths | 0 | - | 4.36 | 29,421 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.54 | 53,909 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,160 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,143 |
| Most Forested European Countries | 0 | - | 4.74 | 60,244 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,275 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,418 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,201 |
| 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 | 98,773 |
| Countries with the Most Mangroves | 0 | - | 4.47 | 29,369 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,298 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,928 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,506 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 84,888 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 23,955 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,840 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,363 |
| Countries by Emojis | 0 | - | 4.99 | 157,962 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 247,204 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,519 |
| 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 | 386,905 |
| Countries with the Most Forest A-Z | 0 | - | 4.49 | 45,539 |
| Name a Valid Country #1 | 0 | - | 4.99 | 171,882 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,949 |
| Worst Plastic Polluting Countries | 0 | - | 4.49 | 53,325 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,495 |
| Name a Valid Country #2 | 0 | - | 4.97 | 150,463 |
| Name a Valid Country #3 | 0 | - | 4.98 | 161,602 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,091,535 |
| Countries of the German Empire | 0 | - | 4.36 | 26,582 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,169 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 239,457 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,616 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 173,991 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 158,609 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,676 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 166,761 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,206 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,098 |
| Battle to Country | 0 | - | 4.89 | 30,510 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,874 |
