| Uruguay Country Quiz | 0 | - | 4.83 | 31,341 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,133 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,137 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,598 |
| North America Map Quiz | 0 | - | 4.98 | 244,294 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,369 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,587 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,868 |
| States of Mexico | 0 | - | 4.95 | 173,266 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,121 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,905 |
| States of Brazil | 0 | - | 4.98 | 86,318 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,008 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,226 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,577 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,461 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,558 |
| Canada Multiple Choice Quiz | 0 | - | 4.53 | 48,880 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,359 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,061 |
| Australian Capitals | 0 | - | 4.92 | 62,590 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,421 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,381 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,563 |
| Official European Union Languages | 0 | - | 4.97 | 236,467 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,663 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,926 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,749 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,029 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| Native American Tribes in the US | 0 | - | 4.70 | 25,256 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,068 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,414 |
| Asia Map Quiz | 0 | - | 4.99 | 906,658 |
| Countries of Africa | 0 | - | 5.00 | 2,506,553 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,778 |
| African East Coast | 0 | - | 4.96 | 95,003 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,894 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,762 |
| Australia Map Quiz | 0 | - | 4.94 | 342,386 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,191 |
| New World Crops | 0 | - | 4.33 | 23,500 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,610 |
| History of Mexico | 0 | - | 4.58 | 15,227 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,185 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,464 |
| Word Chain - South America | 0 | - | 4.51 | 23,760 |
| North American Physical Geography | 0 | - | 4.35 | 30,352 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,116 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,404 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,083 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,516 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,782 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,036 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,179 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,893 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,224 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,521 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,469 |
| The Only European Country ... | 0 | - | 4.91 | 213,707 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,454 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,548 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,420 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,597 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,422 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,976 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,572 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,539 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,218 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,477 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,033 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,362 |
| African Island Countries | 0 | - | 4.96 | 100,743 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,580 |
| Australian States and Territories | 0 | - | 4.95 | 140,619 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,007 |
| Australia True or False | 0 | - | 4.87 | 56,489 |
| Flags of North and South America | 0 | - | 4.99 | 366,755 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,108 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,891 |
| South American Physical Geography | 0 | - | 4.58 | 18,269 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,238 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,707 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,772 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,482 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,234 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,802 |
| Celtic Nations | 0 | - | 4.69 | 46,806 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,418 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,670 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,256 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,229 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,447 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,825 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,713 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,759 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,284 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,214 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,153 |
| Slavic Countries | 0 | - | 4.96 | 110,817 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,033 |
| Counties of England | 0 | - | 4.97 | 788,898 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,215 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,321 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,729 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,375 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,201 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,666 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,445 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,645 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,723 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,126 |
| Countries of the Middle East | 0 | - | 4.96 | 198,832 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,233 |
| States of India | 0 | - | 4.94 | 189,916 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,136 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,992 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,232 |
| The Only African Country ... | 0 | - | 4.99 | 128,327 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,764 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,037 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,260 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,068 |
| Flags of Oceania | 0 | - | 5.00 | 254,992 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,893 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,384 |
| Australia Country Quiz | 0 | - | 4.43 | 69,263 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,035 |
| Regions of New Zealand | 0 | - | 4.85 | 28,120 |
| The Only American Country ... | 0 | - | 4.92 | 120,719 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,307 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 16,964 |
| Famous People from South America | 0 | - | 4.15 | 21,781 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,695 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,919 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,906 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,929 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,283 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,839 |
| The U.S. Pledge of Allegiance | 0 | - | 3.98 | 18,285 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,032 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,467 |
| US States Quiz | 0 | - | 5.00 | 16,693,070 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,659 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,338 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,303 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,015 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,318 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,802 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,184 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,124 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,757 |
| Monarchies of Europe | 0 | - | 4.90 | 97,280 |
| European Countries with One Border | 0 | - | 4.97 | 181,568 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,471 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,184 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,875 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,883 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,152 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,079 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,645 |
| States of Germany | 0 | - | 4.96 | 149,952 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,990 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,509 |
| Regions of Italy | 0 | - | 4.92 | 74,656 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,785 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,267 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,098 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,057 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,879 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,028 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,400 |
| Champions League Winners | 0 | - | 4.92 | 995,911 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,977 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,990 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,315 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,693 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,365 |
| Monarchies of Asia | 0 | - | 4.97 | 70,579 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,420 |
| Provinces of Turkey | 0 | - | 4.95 | 200,857 |
| Provinces of China | 0 | - | 4.97 | 199,994 |
| Japanese Prefectures | 0 | - | 4.98 | 134,476 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,183 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,826 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,642 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 92,764 |
| Kazakhstan Country Quiz | 0 | - | 4.85 | 30,735 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,004 |
| States of India Map Quiz | 0 | - | 4.82 | 26,011 |
| Countries Bordering India | 0 | - | 4.98 | 162,573 |
| Countries Closest to India | 0 | - | 4.97 | 102,190 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,759 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,314 |
| African Great Lakes | 0 | - | 4.82 | 65,102 |
| Every African Country Shape | 0 | - | 4.90 | 86,044 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,836 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,154 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,339 |
| Name a Valid African Country | 0 | - | 4.98 | 152,898 |
