| Australian Capitals | 0 | - | 4.92 | 62,714 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,070 |
| Official European Union Languages | 0 | - | 4.97 | 238,349 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,750 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,880 |
| Australia True or False | 0 | - | 4.87 | 56,820 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,697 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,097 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,362 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,492 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,296 |
| Australia Country Quiz | 0 | - | 4.43 | 69,564 |
| Regions of New Zealand | 0 | - | 4.85 | 28,481 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,522 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,224 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,051 |
| Slavic Languages | 0 | - | 4.68 | 54,324 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,881 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,547 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 219,643 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,986 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,827 |
| Top World Languages | 0 | - | 4.92 | 821,240 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,588 |
| Countries by Official Language | 0 | - | 4.95 | 194,803 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,779 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,754 |
| Countries in their Native Language | 0 | - | 4.99 | 198,341 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,670 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,570 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,570 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 47,995 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,911 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,683 |
| Asia Map Quiz | 0 | - | 4.99 | 915,831 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,146 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,142 |
| Word Chain - Australia | 0 | - | 4.38 | 38,133 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,879 |
| Countries of Africa | 0 | - | 5.00 | 2,533,935 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,745 |
| African East Coast | 0 | - | 4.96 | 95,961 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,784 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,596 |
| Australia Map Quiz | 0 | - | 4.95 | 344,194 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,042 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,624 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,815 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,253 |
| Celtic Nations | 0 | - | 4.69 | 46,923 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,942 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,084 |
| The Only European Country ... | 0 | - | 4.91 | 216,358 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,976 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,801 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,853 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,382,078 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,037 |
| Spanish to English Country Names | 0 | - | 4.86 | 32,988 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,362 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,620 |
| German-Speaking Countries | 0 | - | 4.91 | 145,464 |
| Italian Name Translation | 0 | - | 4.82 | 46,511 |
| French-Speaking Countries | 0 | - | 4.85 | 270,356 |
| Officially Recognized Languages of India | 0 | - | 4.39 | 31,303 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,943 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,853 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,510 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,148 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,199 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,372 |
| African Island Countries | 0 | - | 4.96 | 101,540 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,278 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,677 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,049 |
| Australian States and Territories | 0 | - | 4.96 | 141,830 |
| Famous Australians by Description | 0 | - | 4.23 | 27,910 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,270 |
| Australian Slang | 0 | - | 4.24 | 28,619 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,571 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,163 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,621 |
| North America Map Quiz | 0 | - | 4.98 | 248,210 |
| United States Map Quiz | 0 | - | 4.98 | 4,156,336 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,845 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,378 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,573 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,112 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,467 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,074 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,325 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,254 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,220 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,009 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,174 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,968 |
| Slavic Countries | 0 | - | 4.96 | 111,583 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,328 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,944 |
| Languages of Spain | 0 | - | 4.36 | 23,307 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,162 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,646 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,083 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,922 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,780 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,411 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,189 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 49,843 |
| Countries of the Middle East | 0 | - | 4.96 | 200,988 |
| English Speaking Countries | 0 | - | 4.64 | 357,223 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 69,751 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,617 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,482 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,095 |
| Flags of Africa Quiz | 0 | - | 5.00 | 470,440 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,586 |
| Flags of North and South America | 0 | - | 4.99 | 372,614 |
| South America Map Quiz | 0 | - | 5.00 | 1,548,796 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,022,073 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,053 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,806 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,242,349 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,419 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,457 |
| Counties of England | 0 | - | 4.97 | 795,916 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,363 |
| Flags of Asia Quiz | 0 | - | 4.99 | 612,731 |
| Places in their Native Language #2 | 0 | - | 4.79 | 134,158 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,706 |
| States of India | 0 | - | 4.95 | 193,001 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,314 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,733 |
| The Only African Country ... | 0 | - | 4.99 | 129,043 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,105 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,787 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 321,980 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,112 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.87 | 56,234 |
| Flags of Oceania | 0 | - | 5.00 | 258,692 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 145,325 |
| The Only American Country ... | 0 | - | 4.92 | 121,521 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,042 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,545 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,888 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,852 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,610 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,001 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,431 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,339 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,416 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,893 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,881 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,024 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,762 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,405 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,152 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,026 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,659 |
| Monarchies of Europe | 0 | - | 4.90 | 98,056 |
| European Countries with One Border | 0 | - | 4.97 | 182,668 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,473 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,125 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,086 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,865 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,827 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,290 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,702 |
| States of Germany | 0 | - | 4.96 | 152,286 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,973 |
| Regions of Italy | 0 | - | 4.92 | 75,764 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,058 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,818 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,121 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,294 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,937 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,386 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,685 |
| Champions League Winners | 0 | - | 4.92 | 1,005,679 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,441 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,899 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,196 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,643 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,111 |
| Monarchies of Asia | 0 | - | 4.97 | 71,041 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,830 |
| Provinces of Turkey | 0 | - | 4.95 | 203,901 |
| Provinces of China | 0 | - | 4.97 | 204,035 |
| Japanese Prefectures | 0 | - | 4.98 | 136,661 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,878 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,789 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,764 |
| States of India Map Quiz | 0 | - | 4.83 | 26,473 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,196 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,700 |
| African Great Lakes | 0 | - | 4.82 | 66,148 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,541 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,514 |
| Name a Valid African Country | 0 | - | 4.98 | 153,948 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,766 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,046 |
