| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,207,739 |
| Colombia Country Quiz | 0 | - | 4.89 | 35,893 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 126,079 |
| Countries Bordering Brazil | 0 | - | 4.96 | 125,012 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 45,881 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 123,315 |
| Countries Closest to Alaska | 0 | - | 4.92 | 100,313 |
| Countries Closest to Maine | 0 | - | 4.86 | 59,857 |
| Costa Rica Country Quiz | 0 | - | 4.76 | 29,267 |
| US States Quiz | 0 | - | 5.00 | 14,992,156 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 187,493 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 76,288 |
| Biggest Trading Partners - Colombia | 0 | - | 4.89 | 36,249 |
| Central American Countries | 0 | - | 4.98 | 141,292 |
| Caribbean Countries and Territories | 0 | - | 4.83 | 105,633 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 192,873 |
| Mexico Country Quiz | 0 | - | 4.48 | 67,261 |
| Category Elimination - U.S. States #1 | 0 | - | 4.90 | 197,570 |
| Countries of Africa | 0 | - | 5.00 | 2,214,205 |
| Countries that Beat Australia | 0 | - | 4.84 | 71,295 |
| Cuba Country Quiz | 0 | - | 4.70 | 47,701 |
| Panama Country Quiz | 0 | - | 4.59 | 23,607 |
| US States with an Empty Map | 0 | - | 5.00 | 562,529 |
| Fifty US States in One Minute | 0 | - | 4.57 | 3,286,558 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 62,676 |
| Countries That Use the Euro | 0 | - | 4.93 | 66,013 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 95,267 |
| American Countries on the Pacific Coast | 0 | - | 4.81 | 46,743 |
| The Only European Country ... | 0 | - | 4.93 | 183,011 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 196,947 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 87,186 |
| Countries that Beat the United States | 0 | - | 4.92 | 148,082 |
| Countries that Beat China | 0 | - | 4.83 | 101,833 |
| Countries that Beat Brazil | 0 | - | 4.44 | 49,827 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.96 | 281,815 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 35,437 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 42,399 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 72,959 |
| Louisiana Purchase with a Map | 0 | - | 4.95 | 37,318 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 117,354 |
| Countries of Europe by Population | 0 | - | 4.98 | 131,100 |
| U.S. State Capitals Map Quiz | 0 | - | 4.92 | 127,768 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 190,401 |
| Countries of the Middle East | 0 | - | 4.96 | 176,837 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 76,345 |
| Slavic Countries | 0 | - | 4.96 | 101,551 |
| African Island Countries | 0 | - | 4.96 | 91,027 |
| Straight Shot to Antarctica | 0 | - | 4.90 | 38,009 |
| Countries of North America Quiz | 0 | - | 5.00 | 896,790 |
| Countries of Asia with Two or More Words | 0 | - | 4.95 | 112,745 |
| Asian Countries Ending in "IA" | 0 | - | 4.94 | 95,197 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 121,588 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 200,688 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 180,132 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 142,591 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 107,856 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 134,137 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 140,136 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 106,568 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 149,432 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 90,159 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 98,144 |
| South America Map Quiz | 0 | - | 5.00 | 1,436,405 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 109,045 |
| Rivers of the United States | 0 | - | 4.92 | 58,077 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.58 | 1,261,796 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 101,799 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 102,307 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 72,567 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 57,495 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 209,354 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 163,982 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 160,389 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 82,308 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 90,676 |
| Random U.S. City to State | 0 | - | 4.44 | 66,775 |
| South America Capitals Quiz | 0 | - | 5.00 | 433,381 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 103,073 |
| Landlocked Countries in Africa | 0 | - | 4.98 | 21,044 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 102,257 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 86,329 |
| Monarchies of Europe | 0 | - | 4.89 | 88,174 |
| Monarchies of Asia | 0 | - | 4.95 | 54,777 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 114,294 |
| The Only African Country ... | 0 | - | 4.99 | 121,105 |
| The Only American Country ... | 0 | - | 4.94 | 111,457 |
| African Countries by a Single Clue | 0 | - | 4.92 | 64,229 |
| Which South American Country? | 0 | - | 4.79 | 49,329 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 67,075 |
| European Diaspora - Top 11 Countries | 0 | - | 4.89 | 85,398 |
| Asian Diaspora - Top 10 Countries | 0 | - | 4.81 | 38,472 |
| 10 European Countries with the Most Tourists | 0 | - | 4.97 | 123,237 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 93,366 |
| European Countries with One Border | 0 | - | 4.96 | 152,528 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 146,247 |
| Countries Closest to Africa | 0 | - | 4.95 | 146,587 |
| Brazil Country Quiz | 0 | - | 4.57 | 93,481 |
| Argentina Country Quiz | 0 | - | 4.51 | 52,993 |
| Peru Country Quiz | 0 | - | 4.52 | 44,512 |
| Chile Country Quiz | 0 | - | 4.80 | 36,197 |
| Belize Country Quiz | 0 | - | 4.88 | 19,063 |
| Dominican Republic Country Quiz | 0 | - | 4.59 | 21,272 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 859,063 |
| U.S. State Shapes Quiz #2 | 0 | - | 4.82 | 91,530 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 52,495 |
| U.S. States that Border Canada | 0 | - | 4.90 | 166,978 |
| O Canada Lyrics Quiz | 0 | - | 4.45 | 49,197 |
| UK Immigration by Country | 0 | - | 4.94 | 127,262 |
| Total United States Immigration by Country | 0 | - | 4.90 | 98,164 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 95,339 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 86,095 |
| African Countries with the Most Christians | 0 | - | 4.92 | 68,413 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.94 | 188,981 |
| Most Forested European Countries | 0 | - | 4.82 | 69,269 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 181,682 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 111,128 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 103,544 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 82,941 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 93,336 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.96 | 53,169 |
| Countries with the Most Arabic Speakers | 0 | - | 4.91 | 71,603 |
| Arms Exports - United States | 0 | - | 4.65 | 48,940 |
| Top 10 Coldest European Countries | 0 | - | 4.95 | 182,978 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 116,977 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.94 | 26,467 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 117,253 |
| Countries That Border Russia | 0 | - | 4.98 | 431,011 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.90 | 82,533 |
| Countries Bordering France | 0 | - | 4.87 | 361,386 |
| Countries Bordering Germany | 0 | - | 4.99 | 344,258 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 85,140 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 61,099 |
| Countries that Visit Florida the Most | 0 | - | 4.58 | 50,222 |
| Countries Closest to Australia | 0 | - | 4.99 | 146,903 |
| Countries Closest to the Persian Gulf | 0 | - | 4.92 | 77,692 |
| Countries Closest to Hawaii | 0 | - | 4.51 | 48,454 |
| Biggest Trading Partners - US | 0 | - | 4.63 | 102,487 |
| Germany Country Quiz | 0 | - | 4.82 | 142,765 |
| Russia Country Quiz | 0 | - | 4.85 | 104,891 |
| Italy Country Quiz | 0 | - | 4.81 | 111,162 |
| Japan Country Quiz | 0 | - | 4.92 | 121,390 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 121,538 |
| Croatia Country Quiz | 0 | - | 4.81 | 38,234 |
| Brazil States Map Quiz | 0 | - | 4.84 | 40,762 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 118,095 |
| Tourist Attractions by U.S. State | 0 | - | 4.45 | 60,566 |
| U.S. States by Clue #1 | 0 | - | 4.48 | 33,213 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 144,353 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 70,814 |
| 500 Biggest US Cities | 0 | - | 4.88 | 100,984 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,728 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,547,561 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 117,698 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 77,443 |
| Random European Capital to Country | 0 | - | 4.97 | 154,905 |
| Random European Country to Capital | 0 | - | 4.92 | 136,857 |
| Random Asian Country to Capital | 0 | - | 4.93 | 86,767 |
| Random Asian Capital to Country | 0 | - | 4.97 | 90,854 |
| Random African Country to Capital | 0 | - | 4.94 | 62,902 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 66,734 |
| South China Sea Countries | 0 | - | 4.82 | 54,311 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 129,550 |
| Top 10 American Countries by Coastline | 0 | - | 4.95 | 83,948 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.91 | 90,323 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 67,727 |
| Countries With the Most Russian Speakers | 0 | - | 4.95 | 57,587 |
| Countries With the Most German Speakers | 0 | - | 4.88 | 53,512 |
| Every European Country Shape | 0 | - | 4.95 | 173,645 |
| Every Asian Country Shape | 0 | - | 4.94 | 76,662 |
| Every African Country Shape | 0 | - | 4.88 | 71,874 |
| Shapes of Mediterranean Sea Countries | 0 | - | 4.84 | 52,104 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.88 | 69,499 |
| Top 10 Richest Countries in Asia | 0 | - | 4.87 | 83,360 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 68,906 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 137,443 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 68,139 |
| Countries Bordering India | 0 | - | 4.98 | 156,885 |
| Countries that Border Hungary | 0 | - | 4.98 | 97,405 |
| Countries Bordering Austria | 0 | - | 4.97 | 111,134 |
| Countries Bordering Tanzania | 0 | - | 4.97 | 66,824 |
| Countries Bordering Iran | 0 | - | 4.82 | 89,169 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 60,713 |
| Countries that Border China | 0 | - | 4.96 | 235,693 |
| Countries that Border Iraq | 0 | - | 4.97 | 102,537 |
| Countries Bordering Kenya | 0 | - | 4.85 | 58,660 |
| Countries Bordering Myanmar | 0 | - | 4.85 | 71,873 |
| Countries Bordering Saudi Arabia | 0 | - | 4.94 | 112,833 |
| Countries Bordering Serbia | 0 | - | 4.95 | 84,320 |
| Countries Bordering South Africa | 0 | - | 4.97 | 78,777 |
| Countries Bordering Turkey | 0 | - | 4.98 | 110,012 |
| Countries Bordering Italy | 0 | - | 4.95 | 95,611 |
| Countries that Border Poland | 0 | - | 4.99 | 160,350 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 95,283 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 80,289 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 70,438 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 54,182 |
| Countries that Visit the UK the Most | 0 | - | 4.85 | 64,153 |
| Countries that Visit France the Most | 0 | - | 4.81 | 40,516 |
| Countries Closest to Spain | 0 | - | 4.95 | 208,534 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.92 | 76,837 |
