| Countries of the Soviet Union | 0 | - | 4.98 | 193,747 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,196 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,396 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,120 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,832 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,608 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,259 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,451 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,383 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,275 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,700 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,110 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,809 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,976 |
| Random European Capital to Country | 0 | - | 4.98 | 189,107 |
| Random European Country to Capital | 0 | - | 4.92 | 147,369 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,225 |
| Every European Country Shape | 0 | - | 4.96 | 199,953 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,620 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,819 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,756 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,412 |
| Biggest British Empire Countries | 0 | - | 4.73 | 87,252 |
| The Only European Country ... | 0 | - | 4.91 | 213,606 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,943 |
| Vietnam War Countries | 0 | - | 4.83 | 93,558 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,390 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,165 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,454 |
| Countries of Africa | 0 | - | 5.00 | 2,505,668 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,405 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,671 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,445 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,914 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,830 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,104 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,209 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,200 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,551 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,514 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,742 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,980 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,151 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,326 |
| Countries of the Middle East | 0 | - | 4.96 | 198,779 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,187 |
| Slavic Countries | 0 | - | 4.96 | 110,798 |
| African Island Countries | 0 | - | 4.96 | 100,700 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,468 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,848 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,619 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,400 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,977 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,533 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,626 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,700 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,124 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,111 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,229 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,499 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,184 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,342 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,162 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,452 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,649 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,718 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,488 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,788 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,877 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,740 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,931 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,782 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,523 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,045 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,130 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,594 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,278 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,285 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,318 |
| Monarchies of Europe | 0 | - | 4.90 | 97,245 |
| Monarchies of Asia | 0 | - | 4.97 | 70,556 |
| Countries of the German Empire | 0 | - | 4.51 | 37,635 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,586 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,400 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,636 |
| The Only African Country ... | 0 | - | 4.99 | 128,299 |
| The Only American Country ... | 0 | - | 4.92 | 120,690 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,751 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,214 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,986 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,269 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,956 |
| Countries That Border Russia | 0 | - | 4.98 | 458,666 |
| European Countries with One Border | 0 | - | 4.97 | 181,514 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,120 |
| Countries Bordering France | 0 | - | 4.85 | 397,813 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,826 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,048 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 87,966 |
| UK Immigration by Country | 0 | - | 4.94 | 139,522 |
| Central American Countries | 0 | - | 4.98 | 154,946 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,581 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,237 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,144 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,321 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,185 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,029 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,751 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,735 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,402 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,632 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,153 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,189 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,062 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,466 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,430 |
| Most Visited Countries by Australians | 0 | - | 4.94 | 90,180 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 68,443 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,151 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 82,955 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,445 |
| Germany Country Quiz | 0 | - | 4.82 | 156,448 |
| Russia Country Quiz | 0 | - | 4.85 | 113,586 |
| Italy Country Quiz | 0 | - | 4.82 | 122,118 |
| Japan Country Quiz | 0 | - | 4.92 | 141,151 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,032 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,809 |
| Tanzania Country Quiz | 0 | - | 4.90 | 32,800 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,009 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,309 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,305 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,345 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,765 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,856 |
| Hindu Countries | 0 | - | 4.85 | 49,481 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,795 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,050 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,119 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,700 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,261 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,124 |
| Every Asian Country Shape | 0 | - | 4.95 | 86,550 |
| Every African Country Shape | 0 | - | 4.90 | 85,928 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,320 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,056 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,141 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,082 |
| Countries Bordering India | 0 | - | 4.98 | 162,557 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,640 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,708 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 69,902 |
| Countries Bordering Brazil | 0 | - | 4.96 | 130,997 |
| Countries Bordering Iran | 0 | - | 4.83 | 94,743 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,191 |
| Countries that Border China | 0 | - | 4.96 | 261,738 |
| Countries that Border Iraq | 0 | - | 4.97 | 107,793 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,496 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,031 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,180 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,674 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,283 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,407 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,400 |
| Countries that Border Poland | 0 | - | 4.99 | 171,263 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,352 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,772 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 76,899 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 59,667 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,191 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,261 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,491 |
| Most-Visited Countries by Popes | 0 | - | 4.55 | 83,125 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,181 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,347 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,468 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,772 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,779 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 54,838 |
| Countries Closest to Indonesia | 0 | - | 4.96 | 103,896 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,279 |
| Closest Countries to North Korea | 0 | - | 4.94 | 121,747 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 63,733 |
| Countries Closest to Turkey | 0 | - | 4.96 | 125,266 |
| Countries Closest to India | 0 | - | 4.97 | 102,164 |
| Countries Closest to Japan | 0 | - | 4.92 | 137,859 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,205 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 68,503 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,063 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,444 |
| Countries that Beat China | 0 | - | 4.86 | 114,642 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,819 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,040 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,284 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,589 |
| Brunei Country Quiz | 0 | - | 4.87 | 21,744 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,391 |
| Egypt Country Quiz | 0 | - | 4.82 | 76,998 |
| Kazakhstan Country Quiz | 0 | - | 4.85 | 30,580 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,522 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,281 |
