| Australian Capitals | 0 | - | 4.92 | 62,713 |
| Countries by National Anthem | 0 | - | 4.92 | 71,204 |
| Australia True or False | 0 | - | 4.87 | 56,816 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 47,989 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,291 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,511 |
| Regions of New Zealand | 0 | - | 4.85 | 28,474 |
| Australia Country Quiz | 0 | - | 4.43 | 69,562 |
| Twelve Days of Christmas | 0 | - | 4.45 | 145,967 |
| Rudolph the Red-Nosed Reindeer | 0 | - | 4.53 | 76,224 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,186 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,025 |
| New Zealand Country Quiz | 0 | - | 4.70 | 75,926 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,980 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,919 |
| Elton John Quiz | 0 | - | 4.48 | 18,462 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,579 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,866 |
| Christmas Song Lyrics | 0 | - | 4.19 | 70,579 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,302 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,434 |
| Word Chain - Australia | 0 | - | 4.38 | 38,129 |
| America the Beautiful Lyrics | 0 | - | 4.27 | 19,750 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,062 |
| Official European Union Languages | 0 | - | 4.97 | 238,321 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,732 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,860 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,593 |
| Asia Map Quiz | 0 | - | 4.99 | 915,683 |
| First Lines of Christmas Songs | 0 | - | 4.27 | 150,701 |
| Countries of Africa | 0 | - | 5.00 | 2,533,305 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,734 |
| African East Coast | 0 | - | 4.96 | 95,947 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,768 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,046 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,584 |
| Australia Map Quiz | 0 | - | 4.95 | 344,156 |
| United States Map Quiz | 0 | - | 4.98 | 4,155,713 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,995 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,621 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,773 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,219 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,931 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,040 |
| The Only European Country ... | 0 | - | 4.91 | 216,305 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,951 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,795 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,725 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,883 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,830 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,382,006 |
| Christmas Carol Lyrics | 0 | - | 4.20 | 12,499 |
| States of India | 0 | - | 4.95 | 192,968 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,935 |
| Flags of Africa Quiz | 0 | - | 5.00 | 470,284 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,313 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,821 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,504 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,136 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,188 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,721 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,349 |
| The Only African Country ... | 0 | - | 4.99 | 129,030 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,097 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,851 |
| African Island Countries | 0 | - | 4.96 | 101,522 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,254 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,765 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,098 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.87 | 55,925 |
| Flags of Oceania | 0 | - | 5.00 | 258,618 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,676 |
| Australian States and Territories | 0 | - | 4.96 | 141,821 |
| Famous Australians by Description | 0 | - | 4.23 | 27,906 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 145,315 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,265 |
| Australian Slang | 0 | - | 4.24 | 28,613 |
| Flags of North and South America | 0 | - | 4.99 | 372,515 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,564 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,158 |
| The Only American Country ... | 0 | - | 4.92 | 121,497 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,029 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,561 |
| South America Map Quiz | 0 | - | 5.00 | 1,548,610 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,542 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,830 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,021,872 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,840 |
| North America Map Quiz | 0 | - | 4.98 | 248,151 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,598 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,970 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,416 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,305 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,691 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,402 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,869 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,050 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,870 |
| US States Quiz | 0 | - | 5.00 | 16,852,498 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,921 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,687 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,572 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,089 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,015 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,837 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,376 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,242,020 |
| Celtic Nations | 0 | - | 4.69 | 46,923 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,265 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,555 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,088 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,752 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,425 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,383 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,060 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,118 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,315 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,013 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,229 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,087 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,637 |
| Monarchies of Europe | 0 | - | 4.90 | 98,040 |
| European Countries with One Border | 0 | - | 4.97 | 182,638 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,452 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,966 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,056 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,148 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,927 |
| Slavic Countries | 0 | - | 4.96 | 111,568 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,813 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,810 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,276 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,682 |
| States of Germany | 0 | - | 4.96 | 152,219 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,324 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,958 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,930 |
| Regions of Italy | 0 | - | 4.92 | 75,733 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,037 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,787 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,112 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,248 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,928 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,349 |
| Counties of England | 0 | - | 4.97 | 795,782 |
| Imagine Lyrics | 0 | - | 4.53 | 43,247 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,903 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,683 |
| Champions League Winners | 0 | - | 4.92 | 1,005,492 |
| Flags of Asia Quiz | 0 | - | 4.99 | 612,588 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,152 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,437 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,635 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,064 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,906 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,879 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,760 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,394 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,166 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,600 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,349 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,173 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,095 |
| Monarchies of Asia | 0 | - | 4.97 | 71,032 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 49,831 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,821 |
| Countries of the Middle East | 0 | - | 4.96 | 200,943 |
| Provinces of Turkey | 0 | - | 4.95 | 203,853 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,485 |
| Provinces of China | 0 | - | 4.97 | 203,969 |
| Japanese Prefectures | 0 | - | 4.98 | 136,627 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,777 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,737 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,199 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 93,251 |
| States of India Map Quiz | 0 | - | 4.83 | 26,470 |
| Countries Bordering India | 0 | - | 4.98 | 163,376 |
| Countries Closest to India | 0 | - | 4.97 | 102,706 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,188 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,694 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,577 |
| African Great Lakes | 0 | - | 4.82 | 66,130 |
| Every African Country Shape | 0 | - | 4.90 | 87,163 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,528 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,212 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,493 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 321,934 |
| Name a Valid African Country | 0 | - | 4.98 | 153,929 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,760 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 68,886 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,827 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,041 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,130 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,452 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,750 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 63,956 |
| D.R. Congo Country Quiz | 0 | - | 4.87 | 39,320 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,489 |
| Palau Country Quiz | 0 | - | 4.90 | 22,994 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,540 |
