| Countries of the Soviet Union | 0 | - | 4.98 | 194,064 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,240 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,769 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,652 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,715 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,410 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,362 |
| UK Immigration by Country | 0 | - | 4.94 | 139,940 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,496 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,700 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,666 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,565 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,372 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,210 |
| Random European Capital to Country | 0 | - | 4.98 | 189,547 |
| Random European Country to Capital | 0 | - | 4.92 | 147,709 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,375 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,040 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,632 |
| Every European Country Shape | 0 | - | 4.96 | 200,563 |
| Countries of Africa | 0 | - | 5.00 | 2,515,194 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,467 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,839 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,512 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,267 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,544 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,884 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,054 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,003 |
| Biggest British Empire Countries | 0 | - | 4.73 | 99,125 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,988 |
| The Only European Country ... | 0 | - | 4.91 | 214,599 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,665 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,998 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,385 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,014,991 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,849 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,574 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,536 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,431 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,795 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,696 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,949 |
| Europe Capital to Country | 0 | - | 4.99 | 248,470 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,848 |
| European Capitals by Map | 0 | - | 4.99 | 137,169 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,457 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,837 |
| European Coastal Capitals | 0 | - | 4.95 | 89,970 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,385 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,948 |
| Countries of the Middle East | 0 | - | 4.96 | 199,462 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,528 |
| Slavic Countries | 0 | - | 4.96 | 111,065 |
| African Island Countries | 0 | - | 4.96 | 100,998 |
| Random European Flag to Country | 0 | - | 4.89 | 181,273 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,040 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,747 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,477 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,953 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,964 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,021 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,292 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,375 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,542 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,761 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,514 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,594 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,457 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,690 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 70,301 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 79,723 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,945 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,578 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,350 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,202 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,174 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,931 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,781 |
| Official Cities in the UK | 0 | - | 4.89 | 281,366 |
| Cities in European History #1 | 0 | - | 4.63 | 133,382 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,590 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,392 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,832 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,901 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,368 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,701 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,587 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,508 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,596 |
| Monarchies of Europe | 0 | - | 4.90 | 97,540 |
| Monarchies of Asia | 0 | - | 4.97 | 70,727 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,540 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 134,279 |
| The Only African Country ... | 0 | - | 4.99 | 128,556 |
| The Only American Country ... | 0 | - | 4.92 | 121,010 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,858 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,356 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,211 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,676 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,310 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,523 |
| European Countries with One Border | 0 | - | 4.97 | 181,897 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,804 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,343 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,565 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,183 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,412 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,808 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,461 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,811 |
| Central American Countries | 0 | - | 4.98 | 155,329 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,856 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,513 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,027 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,658 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,273 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,579 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 116,084 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,275 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,973 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,889 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,625 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,023 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,388 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,448 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,318 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,596 |
| Countries That Border Russia | 0 | - | 4.98 | 459,823 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,628 |
| Countries Bordering France | 0 | - | 4.83 | 400,587 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,600 |
| Most Visited Countries by Australians | 0 | - | 4.94 | 90,321 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 68,671 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,417 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,077 |
| Germany Country Quiz | 0 | - | 4.82 | 156,883 |
| Russia Country Quiz | 0 | - | 4.85 | 113,857 |
| Italy Country Quiz | 0 | - | 4.82 | 122,476 |
| Japan Country Quiz | 0 | - | 4.92 | 141,580 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,985 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,124 |
| Kazakhstan Country Quiz | 0 | - | 4.83 | 35,278 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,789 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,296 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,548 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,641 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,958 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,861 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 137,998 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,142 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.91 | 96,235 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,714 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,712 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,095 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,938 |
| Every Asian Country Shape | 0 | - | 4.95 | 86,868 |
| Every African Country Shape | 0 | - | 4.90 | 86,409 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 80,327 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,325 |
| Countries Bordering India | 0 | - | 4.98 | 163,096 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,837 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,936 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 69,983 |
| Countries Bordering Iran | 0 | - | 4.83 | 94,914 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,288 |
| Countries that Border China | 0 | - | 4.96 | 262,152 |
| Countries that Border Iraq | 0 | - | 4.97 | 107,975 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,603 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,191 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,326 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,932 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,345 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,667 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,572 |
| Countries that Border Poland | 0 | - | 4.99 | 171,605 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,772 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,080 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,072 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 59,813 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,632 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,972 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,476 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,614 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,902 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 55,082 |
| Countries Closest to Indonesia | 0 | - | 4.97 | 104,132 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,557 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 63,825 |
| Countries Closest to Turkey | 0 | - | 4.96 | 125,560 |
| Countries Closest to India | 0 | - | 4.97 | 102,359 |
| Countries Closest to Japan | 0 | - | 4.92 | 138,087 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,674 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 68,632 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,263 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,437 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,334 |
| Europe Map Quiz | 0 | - | 5.00 | 4,739,606 |
| Star-Spangled Banner Lyrics | 0 | - | 4.36 | 178,885 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,861 |
