| Uruguay Country Quiz | 0 | - | 4.83 | 31,470 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,426 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,567 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,663 |
| North America Map Quiz | 0 | - | 4.98 | 246,837 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,572 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,909 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,348 |
| States of Mexico | 0 | - | 4.95 | 174,919 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,585 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,428 |
| States of Brazil | 0 | - | 4.97 | 87,244 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,153 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,996 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,654 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,489 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 218,396 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,129 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,457 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,289 |
| Australian Capitals | 0 | - | 4.92 | 62,669 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,743 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,441 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,882 |
| Official European Union Languages | 0 | - | 4.97 | 237,760 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,384 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,095 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,480 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,965 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,761 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,348 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,736 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,444,379 |
| Asia Map Quiz | 0 | - | 4.99 | 911,610 |
| Countries of Africa | 0 | - | 5.00 | 2,523,233 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,338 |
| African East Coast | 0 | - | 4.96 | 95,588 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,416 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,250 |
| Australia Map Quiz | 0 | - | 4.94 | 343,403 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,227 |
| New World Crops | 0 | - | 4.37 | 30,701 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,678 |
| History of Mexico | 0 | - | 4.58 | 15,268 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,274 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,535 |
| Word Chain - South America | 0 | - | 4.51 | 23,843 |
| North American Physical Geography | 0 | - | 4.35 | 30,390 |
| United States Map Quiz | 0 | - | 4.98 | 4,149,420 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,429 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,215 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,577 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,907 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,242 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,494 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,077 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,390 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,777 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,417 |
| The Only European Country ... | 0 | - | 4.91 | 215,342 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,434 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,688 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,285 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,522 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,703 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,375 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,319 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,956 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,754 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,883 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,836 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,301 |
| African Island Countries | 0 | - | 4.96 | 101,218 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,717 |
| Australian States and Territories | 0 | - | 4.96 | 141,441 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,160 |
| Australia True or False | 0 | - | 4.87 | 56,700 |
| Flags of North and South America | 0 | - | 4.99 | 370,601 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,967 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,282 |
| South American Physical Geography | 0 | - | 4.58 | 18,316 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,018,026 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,150 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,096 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,706 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,326 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,235,829 |
| Celtic Nations | 0 | - | 4.69 | 46,880 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,986 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,208 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,756 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,592 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,818 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,140 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,480 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,688 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,452 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,810 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,572 |
| Slavic Countries | 0 | - | 4.96 | 111,308 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,213 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,788 |
| Counties of England | 0 | - | 4.97 | 793,056 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,884 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,556 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,882 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,287 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,776 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,627 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,382 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,044 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,085 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,672 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,578 |
| Countries of the Middle East | 0 | - | 4.96 | 199,983 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,371 |
| States of India | 0 | - | 4.94 | 191,883 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,421 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,214 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,506 |
| The Only African Country ... | 0 | - | 4.99 | 128,753 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,949 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,463 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 320,870 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,776 |
| Flags of Oceania | 0 | - | 5.00 | 257,243 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,155 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,936 |
| Australia Country Quiz | 0 | - | 4.43 | 69,459 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,343 |
| Regions of New Zealand | 0 | - | 4.85 | 28,419 |
| The Only American Country ... | 0 | - | 4.92 | 121,218 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,772 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 16,995 |
| Famous People from South America | 0 | - | 4.15 | 21,888 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,991 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,487 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,570 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,239 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,917 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,202 |
| The U.S. Pledge of Allegiance | 0 | - | 3.98 | 18,328 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,520 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,714 |
| US States Quiz | 0 | - | 5.00 | 16,790,967 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,738 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,774 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,644 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,481 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,003 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,595 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,658 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,310 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,296 |
| Monarchies of Europe | 0 | - | 4.90 | 97,749 |
| European Countries with One Border | 0 | - | 4.97 | 182,211 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,071 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,733 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,610 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,540 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,570 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,893 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,267 |
| States of Germany | 0 | - | 4.96 | 151,266 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,637 |
| Regions of Italy | 0 | - | 4.92 | 75,291 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 50,509 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,283 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,792 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,505 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,387 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,732 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,626 |
| Champions League Winners | 0 | - | 4.92 | 1,001,345 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,191 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,566 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,846 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 134,814 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,838 |
| Monarchies of Asia | 0 | - | 4.97 | 70,863 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,671 |
| Provinces of Turkey | 0 | - | 4.95 | 203,119 |
| Provinces of China | 0 | - | 4.97 | 202,523 |
| Japanese Prefectures | 0 | - | 4.98 | 135,863 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,558 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,392 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,019 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 93,074 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,135 |
| States of India Map Quiz | 0 | - | 4.83 | 26,258 |
| Countries Bordering India | 0 | - | 4.98 | 163,227 |
| Countries Closest to India | 0 | - | 4.97 | 102,496 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,004 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,570 |
| African Great Lakes | 0 | - | 4.82 | 65,775 |
| Every African Country Shape | 0 | - | 4.90 | 86,723 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,223 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,570 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,828 |
| Name a Valid African Country | 0 | - | 4.98 | 153,503 |
