| Uruguay Country Quiz | 0 | - | 4.83 | 31,351 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,147 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,153 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,600 |
| North America Map Quiz | 0 | - | 4.98 | 244,386 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,374 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,603 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,889 |
| States of Mexico | 0 | - | 4.95 | 173,314 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,144 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,950 |
| States of Brazil | 0 | - | 4.98 | 86,370 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,012 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,297 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,577 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,504 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,662 |
| Canada Multiple Choice Quiz | 0 | - | 4.53 | 48,888 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,362 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,087 |
| Australian Capitals | 0 | - | 4.92 | 62,593 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,433 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,385 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,573 |
| Official European Union Languages | 0 | - | 4.97 | 236,502 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,692 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,812 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,113 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,210 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,258 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,158 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,026 |
| Asia Map Quiz | 0 | - | 4.99 | 906,897 |
| Countries of Africa | 0 | - | 5.00 | 2,507,387 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,802 |
| African East Coast | 0 | - | 4.96 | 95,035 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,912 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,783 |
| Australia Map Quiz | 0 | - | 4.94 | 342,449 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,193 |
| New World Crops | 0 | - | 4.33 | 23,502 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,611 |
| History of Mexico | 0 | - | 4.58 | 15,230 |
| South American Geography Quiz #2 | 0 | - | 4.62 | 39,190 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,469 |
| Word Chain - South America | 0 | - | 4.51 | 23,763 |
| North American Physical Geography | 0 | - | 4.35 | 30,354 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,484 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,405 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,085 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,517 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,791 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,108 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,198 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,950 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,284 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,534 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,520 |
| The Only European Country ... | 0 | - | 4.91 | 213,787 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,508 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,563 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,449 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,808 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,430 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,225 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,604 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,553 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,247 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,500 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,084 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,418 |
| African Island Countries | 0 | - | 4.96 | 100,777 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,627 |
| Australian States and Territories | 0 | - | 4.95 | 140,751 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,015 |
| Australia True or False | 0 | - | 4.87 | 56,499 |
| Flags of North and South America | 0 | - | 4.99 | 367,057 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,209 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,101 |
| South American Physical Geography | 0 | - | 4.58 | 18,269 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,487 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,825 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,879 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,495 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,238 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,375 |
| Celtic Nations | 0 | - | 4.69 | 46,810 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,647 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,702 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,272 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,286 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,457 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,839 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,797 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,848 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,385 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,242 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,181 |
| Slavic Countries | 0 | - | 4.96 | 110,845 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,045 |
| Counties of England | 0 | - | 4.97 | 789,083 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,416 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,340 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,751 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,387 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,225 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,695 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,473 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,671 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,750 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,147 |
| Countries of the Middle East | 0 | - | 4.96 | 198,879 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,241 |
| States of India | 0 | - | 4.94 | 189,994 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,155 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,996 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,245 |
| The Only African Country ... | 0 | - | 4.99 | 128,349 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,774 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,054 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,310 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,093 |
| Flags of Oceania | 0 | - | 5.00 | 255,119 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,910 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,413 |
| Australia Country Quiz | 0 | - | 4.43 | 69,274 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,046 |
| Regions of New Zealand | 0 | - | 4.85 | 28,126 |
| The Only American Country ... | 0 | - | 4.92 | 120,743 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,329 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 16,966 |
| Famous People from South America | 0 | - | 4.15 | 21,784 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,762 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,941 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,945 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,944 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,305 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,854 |
| The U.S. Pledge of Allegiance | 0 | - | 3.98 | 18,287 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,053 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,483 |
| US States Quiz | 0 | - | 5.00 | 16,698,039 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,661 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,358 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,322 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,033 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,364 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,835 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,205 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,138 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,787 |
| Monarchies of Europe | 0 | - | 4.90 | 97,299 |
| European Countries with One Border | 0 | - | 4.97 | 181,601 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,512 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,228 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,927 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,947 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,183 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,105 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,675 |
| States of Germany | 0 | - | 4.96 | 150,014 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,001 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,517 |
| Regions of Italy | 0 | - | 4.92 | 74,691 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,799 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,312 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,138 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,103 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,901 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,070 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,403 |
| Champions League Winners | 0 | - | 4.92 | 996,200 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,990 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,019 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,350 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,738 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,391 |
| Monarchies of Asia | 0 | - | 4.97 | 70,591 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,430 |
| Provinces of Turkey | 0 | - | 4.95 | 200,956 |
| Provinces of China | 0 | - | 4.97 | 200,078 |
| Japanese Prefectures | 0 | - | 4.98 | 134,523 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,204 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,872 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,662 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 92,777 |
| Kazakhstan Country Quiz | 0 | - | 4.85 | 30,834 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,009 |
| States of India Map Quiz | 0 | - | 4.82 | 26,026 |
| Countries Bordering India | 0 | - | 4.98 | 162,591 |
| Countries Closest to India | 0 | - | 4.97 | 102,199 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,769 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,326 |
| African Great Lakes | 0 | - | 4.82 | 65,134 |
| Every African Country Shape | 0 | - | 4.90 | 86,081 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,854 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,167 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,350 |
| Name a Valid African Country | 0 | - | 4.98 | 152,924 |
