| Figures from Greek Mythology | 0 | - | 4.91 | 186,927 |
| Byzantine History | 0 | - | 4.91 | 28,865 |
| Byzantine Emperors | 0 | - | 4.92 | 14,062 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,053 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,763 |
| Roman to Greek God | 0 | - | 4.52 | 122,807 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 87,763 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,151 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,738 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,000 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,203 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 81,684 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,647 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,983 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,852 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,334 |
| Name that Greek Letter | 0 | - | 4.93 | 323,419 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,468 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 56,625 |
| Italy Country Quiz | 0 | - | 4.82 | 123,391 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,352 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,033 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,856 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,029 |
| Name the English Monarchs | 0 | - | 4.91 | 502,569 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,272 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,343 |
| Europe Map Quiz | 0 | - | 5.00 | 4,762,488 |
| The Trojan War | 0 | - | 4.83 | 39,723 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,827 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,477 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,522 |
| Roman Emperors | 0 | - | 4.95 | 120,017 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,882 |
| Egypt Country Quiz | 0 | - | 4.83 | 77,517 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,430 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,156 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,488 |
| Ancient Greek Words | 0 | - | 4.93 | 111,587 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,869 |
| Roman History by Picture | 0 | - | 4.46 | 26,465 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,127 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,174 |
| Asia Map Quiz | 0 | - | 4.99 | 916,640 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,382,855 |
| Countries that Beat Egypt | 0 | - | 4.88 | 57,004 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,004 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,243,839 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,591 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,220 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,650 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,194 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,668 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,136 |
| The Only European Country ... | 0 | - | 4.91 | 216,581 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,460 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,798 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,102 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,267 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,177 |
| Slavic Countries | 0 | - | 4.96 | 111,644 |
| History of Russia Quiz | 0 | - | 4.47 | 31,914 |
| History of Italy | 0 | - | 4.55 | 31,972 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,859 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,656 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,233 |
| Counties of England | 0 | - | 4.97 | 796,606 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,857 |
| Groups of Things - Harry Potter | 0 | - | 4.82 | 281,704 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,886 |
| Flags of Asia Quiz | 0 | - | 4.99 | 613,394 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,223 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,723 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,141 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,984 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,883 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,496 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,950 |
| Countries of the Middle East | 0 | - | 4.96 | 201,146 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,830 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,443 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,224 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,721 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,698,092 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,101 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,987 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,843 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,502 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,283 |
| Least Forested Countries in Asia | 0 | - | 4.75 | 64,713 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,742 |
| Monarchies of Europe | 0 | - | 4.90 | 98,136 |
| European Countries with One Border | 0 | - | 4.97 | 182,763 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,557 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,224 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,792 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,504 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,103 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,947 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,695 |
| Russia Country Quiz | 0 | - | 4.85 | 114,468 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,108 |
| Countries That Border Russia | 0 | - | 4.98 | 461,704 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,333 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,889 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,339 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,682 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,402 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,728 |
| Departments of France | 0 | - | 4.93 | 54,088 |
| Countries Bordering France | 0 | - | 4.83 | 402,512 |
| History of France | 0 | - | 4.59 | 56,968 |
| Germany Country Quiz | 0 | - | 4.82 | 157,832 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,802 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,316 |
| States of Germany | 0 | - | 4.96 | 152,533 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,023 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,374 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,607 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,993 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,911 |
| Regions of Italy | 0 | - | 4.92 | 75,853 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,324 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,545 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,142 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,919 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,927 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,640 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 67,430 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,188 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,990 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,579 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 388,018 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,403 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,349 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,461 |
| Geography of the British Empire | 0 | - | 4.48 | 39,670 |
| Medieval English History | 0 | - | 4.53 | 43,506 |
| England or Wales? | 0 | - | 4.94 | 45,683 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,325 |
| Champions League Winners | 0 | - | 4.92 | 1,006,565 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,984 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,958 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,277 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,800 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,216 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 134,341 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,184 |
| Monarchies of Asia | 0 | - | 4.97 | 71,083 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,993 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,880 |
| Flags of the Middle East | 0 | - | 4.69 | 62,625 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,378 |
| Iran Country Quiz | 0 | - | 4.51 | 60,354 |
| Iraq Country Quiz | 0 | - | 4.43 | 40,931 |
| Syria Country Quiz | 0 | - | 4.81 | 32,770 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,768 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,074 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,484 |
| China Cities Map Quiz | 0 | - | 4.93 | 105,184 |
| Provinces of China Map Quiz | 0 | - | 4.92 | 93,557 |
| Japan Country Quiz | 0 | - | 4.93 | 142,453 |
| Closest Countries to North Korea | 0 | - | 4.94 | 122,401 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,260 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 93,312 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,219 |
| States of India Map Quiz | 0 | - | 4.83 | 26,514 |
| Countries Bordering India | 0 | - | 4.98 | 163,425 |
| Countries Closest to India | 0 | - | 4.97 | 102,771 |
| Hindu Countries | 0 | - | 4.86 | 50,139 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,779 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,208 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,103 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,378 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,436 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,042 |
| Countries that Border Poland | 0 | - | 4.99 | 172,263 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,838 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,775 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,790 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,215 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,870 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,801 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,385 |
| History of Austria | 0 | - | 4.70 | 17,861 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,765 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,309 |
| Geography of the French Empire | 0 | - | 4.45 | 27,057 |
| The French Revolution | 0 | - | 4.46 | 23,929 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,866 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,174 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,194 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,409 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,644 |
| History of Germany | 0 | - | 4.39 | 52,817 |
| Mythology A-Z | 0 | - | 4.31 | 37,217 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,655 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,657 |
| Counties of Ireland | 0 | - | 4.92 | 195,217 |
| Italy A-Z | 0 | - | 4.49 | 58,301 |
