| Countries of the German Empire | 0 | - | 4.51 | 38,210 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 110,712 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,596 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,900 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,337 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,412 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,474 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,466 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,095 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,018 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,461 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,333 |
| Vietnam War Countries | 0 | - | 4.82 | 94,639 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,318 |
| UK Immigration by Country | 0 | - | 4.94 | 141,721 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,716 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.42 | 51,974 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,007 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,075 |
| Random European Capital to Country | 0 | - | 4.98 | 192,151 |
| Random European Country to Capital | 0 | - | 4.93 | 165,904 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,565 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 73,032 |
| Every European Country Shape | 0 | - | 4.96 | 203,000 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,216 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,712 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,858 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,314 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,153 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,806 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,865 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,122 |
| Biggest British Empire Countries | 0 | - | 4.74 | 100,512 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,363 |
| The Only European Country ... | 0 | - | 4.91 | 219,029 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,953 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,522 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,475 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,912 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,917 |
| Countries of Africa | 0 | - | 5.00 | 2,559,945 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,848 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,410 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,898 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,529 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,200 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,517 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,860 |
| Europe Capital to Country | 0 | - | 4.99 | 252,096 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,983 |
| European Capitals by Map | 0 | - | 4.99 | 142,106 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,879 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,194 |
| European Coastal Capitals | 0 | - | 4.95 | 91,316 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,807 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,661 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,807 |
| Countries of the Middle East | 0 | - | 4.96 | 202,957 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,184 |
| Slavic Countries | 0 | - | 4.96 | 112,371 |
| African Island Countries | 0 | - | 4.96 | 102,449 |
| Random European Flag to Country | 0 | - | 4.90 | 184,228 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,579 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,827 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,324 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,609 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,376 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,514 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,525 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,962 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,795 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,061 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,725 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,272 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,919 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,153 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,134 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,878 |
| Flags of Countries That Border France | 0 | - | 4.89 | 123,805 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,012 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,984 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 54,001 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,459 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,070 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,723 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,877 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,851 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,248 |
| Official Cities in the UK | 0 | - | 4.89 | 286,276 |
| Cities in European History #1 | 0 | - | 4.63 | 134,614 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,590 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,124 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,588 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,716 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,478 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 58,264 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,102 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,674 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,516 |
| Monarchies of Europe | 0 | - | 4.90 | 98,878 |
| Monarchies of Asia | 0 | - | 4.97 | 71,505 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,292 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,524 |
| The Only African Country ... | 0 | - | 4.99 | 129,661 |
| The Only American Country ... | 0 | - | 4.92 | 122,217 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,381 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,289 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,741 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,502 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,846 |
| Countries That Border Russia | 0 | - | 4.98 | 464,509 |
| European Countries with One Border | 0 | - | 4.97 | 183,804 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,543 |
| Countries Bordering France | 0 | - | 4.83 | 404,917 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,860 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 75,200 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,829 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,029 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,934 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,228 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,563 |
| Central American Countries | 0 | - | 4.98 | 157,344 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,600 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,416 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,982 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,101 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,493 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.54 | 49,638 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,338 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,310 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,841 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 102,041 |
| 10 Easternmost Countries in Africa | 0 | - | 4.98 | 25,102 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,579 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,824 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 33,345 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,888 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,795 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,746 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,469 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,898 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,608 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,821 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,723 |
| Germany Country Quiz | 0 | - | 4.82 | 158,840 |
| Russia Country Quiz | 0 | - | 4.83 | 115,317 |
| Japan Country Quiz | 0 | - | 4.93 | 143,337 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,745 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,254 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,591 |
| Jordan Country Quiz | 0 | - | 4.86 | 32,086 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,075 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,644 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,439 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,240 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,821 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,990 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,419 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,357 |
| Hindu Countries | 0 | - | 4.87 | 50,581 |
| Most Forested European Countries | 0 | - | 4.80 | 75,683 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,728 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,613 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,689 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,708 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,592 |
| Countries Once Held by Sweden | 0 | - | 4.18 | 34,856 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,861 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,655 |
| Every Asian Country Shape | 0 | - | 4.95 | 88,609 |
| Every African Country Shape | 0 | - | 4.90 | 88,388 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,227 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,171 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,007 |
| Countries Bordering India | 0 | - | 4.98 | 163,821 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,009 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,950 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,701 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,260 |
| Countries Bordering Iran | 0 | - | 4.83 | 96,060 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,838 |
| Countries that Border China | 0 | - | 4.96 | 264,289 |
| Countries that Border Iraq | 0 | - | 4.97 | 109,105 |
| Countries Bordering Kenya | 0 | - | 4.87 | 63,135 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 78,188 |
| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 133,799 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,094 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,915 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,892 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,257 |
| Countries that Border Poland | 0 | - | 4.99 | 173,171 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 194,740 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,551 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,449 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,846 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 60,535 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,618 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,896 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,149 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,126 |
