| Federal Subjects of Russia | 0 | - | 4.95 | 148,780 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,629 |
| History of Russia Quiz | 0 | - | 4.47 | 31,980 |
| Qatar Country Quiz | 0 | - | 4.86 | 31,647 |
| Jordan Country Quiz | 0 | - | 4.86 | 32,001 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,629 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,116 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,907 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,977 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,748 |
| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 133,529 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,545 |
| Official European Union Languages | 0 | - | 4.97 | 239,384 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,414 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,076 |
| Geography of Russia | 0 | - | 4.57 | 21,573 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,959 |
| Asia Map Quiz | 0 | - | 4.99 | 922,740 |
| Egypt Country Quiz | 0 | - | 4.83 | 77,818 |
| Oman Country Quiz | 0 | - | 4.86 | 27,028 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,209 |
| Byzantine History | 0 | - | 4.91 | 28,983 |
| Byzantine Emperors | 0 | - | 4.92 | 14,484 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,988 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,661 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,103 |
| Countries Closest to Egypt | 0 | - | 4.83 | 101,434 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,905 |
| Flags of Asia Quiz | 0 | - | 4.99 | 617,974 |
| Cyprus Country Quiz | 0 | - | 4.61 | 31,145 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,465 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,866 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,068 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,767 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,907 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,618 |
| Slavic Countries | 0 | - | 4.96 | 112,154 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,126 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,238 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,603 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,326 |
| Champions League Winners | 0 | - | 4.92 | 1,012,711 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,593 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,321 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,689 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,965 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,541 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,077 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,860 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,219 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,363 |
| Countries of the Middle East | 0 | - | 4.96 | 202,208 |
| Celtic Nations | 0 | - | 4.61 | 47,058 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,521 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,581 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,198 |
| Famous Russians | 0 | - | 4.16 | 23,890 |
| Word Chain - Russia | 0 | - | 4.33 | 15,780 |
| Countries That Border Russia | 0 | - | 4.98 | 463,828 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,305 |
| States of Germany | 0 | - | 4.95 | 153,907 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,503 |
| Regions of Italy | 0 | - | 4.92 | 76,631 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,634 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,964 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,577 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,803 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,863 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,576 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,850 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,622 |
| Monarchies of Asia | 0 | - | 4.97 | 71,369 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,160 |
| Flags of the Middle East | 0 | - | 4.69 | 62,764 |
| Iran Country Quiz | 0 | - | 4.49 | 60,574 |
| Iraq Country Quiz | 0 | - | 4.43 | 41,072 |
| Turkey Country Quiz | 0 | - | 4.42 | 76,063 |
| Provinces of Turkey | 0 | - | 4.94 | 205,332 |
| United Arab Emirates Country Quiz | 0 | - | 4.44 | 35,365 |
| Lebanon Country Quiz | 0 | - | 4.56 | 36,120 |
| Syria Country Quiz | 0 | - | 4.80 | 32,972 |
| Provinces of China | 0 | - | 4.97 | 206,817 |
| Japanese Prefectures | 0 | - | 4.98 | 138,395 |
| States of India | 0 | - | 4.95 | 195,126 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,680 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,764 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,019 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,073 |
| Russia Country Quiz | 0 | - | 4.83 | 115,115 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,604 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,872 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,502 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,001 |
| Departments of France | 0 | - | 4.93 | 54,823 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,694 |
| England or Wales? | 0 | - | 4.94 | 45,881 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,558 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,616 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,729 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,601 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,511 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,606 |
| Countries Closest to Turkey | 0 | - | 4.96 | 126,774 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,945 |
| Countries Closest to Yemen | 0 | - | 4.92 | 22,705 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 55,948 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,887 |
| Countries Closest to Indonesia | 0 | - | 4.97 | 104,889 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 94,267 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 78,048 |
| China Cities Map Quiz | 0 | - | 4.94 | 105,695 |
| Provinces of China Map Quiz | 0 | - | 4.92 | 94,252 |
| Countries that Border China | 0 | - | 4.96 | 263,921 |
| Japan Country Quiz | 0 | - | 4.93 | 143,056 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,700 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 60,407 |
| Countries Closest to Japan | 0 | - | 4.92 | 139,018 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 33,199 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,312 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 93,598 |
| States of India Map Quiz | 0 | - | 4.83 | 26,772 |
| Countries Bordering India | 0 | - | 4.98 | 163,703 |
| Countries Closest to India | 0 | - | 4.97 | 103,087 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,478 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,906 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,699 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,699 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,134 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,216 |
| Slavic Languages | 0 | - | 4.68 | 54,593 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,982 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,961 |
| The Trojan War | 0 | - | 4.83 | 39,926 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,486 |
| Name that Greek Letter | 0 | - | 4.93 | 324,611 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,636 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,701 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,455 |
| Roman Emperors | 0 | - | 4.95 | 120,836 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,584 |
| Countries and States in the Caucasus | 0 | - | 4.46 | 51,722 |
| The Only Remaining Asian Country . . . | 0 | - | 4.64 | 46,027 |
| Middle Eastern Geography Quiz | 0 | - | 4.57 | 44,077 |
| Kuwait Country Quiz | 0 | - | 4.79 | 22,969 |
| Bahrain Country Quiz | 0 | - | 4.69 | 21,800 |
| Saudi Arabia Country Quiz | 0 | - | 4.19 | 56,227 |
| Yemen Country Quiz | 0 | - | 4.57 | 29,692 |
| Palestine Country Quiz | 0 | - | 4.08 | 36,569 |
| Brunei Country Quiz | 0 | - | 4.87 | 22,038 |
| Countries that Beat China | 0 | - | 4.85 | 116,474 |
| Closest Countries to North Korea | 0 | - | 4.94 | 123,097 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,308 |
| Hindu Countries | 0 | - | 4.87 | 50,435 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,606 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,346 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,829 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,680 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,869 |
| Ancient Greek Words | 0 | - | 4.93 | 112,206 |
| History of Italy | 0 | - | 4.55 | 32,105 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,173 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,774 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,372 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,780 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,529 |
| Asian Physical Geography | 0 | - | 4.61 | 35,590 |
| East Asian Islands on the Map | 0 | - | 4.55 | 33,171 |
| 10 Westernmost Countries in Asia | 0 | - | 4.69 | 71,494 |
| Asian Island Nations | 0 | - | 4.63 | 94,390 |
| Asia's Busiest Airports | 0 | - | 4.69 | 53,033 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 416,817 |
| Turkmenistan Country Quiz | 0 | - | 4.81 | 26,098 |
| Arab Spring Countries | 0 | - | 4.51 | 44,172 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,063 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 83,220 |
| Countries Surrounding Istanbul | 0 | - | 4.89 | 24,929 |
| Israel Immigration by Country | 0 | - | 4.29 | 36,281 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,380 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,614 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 120,977 |
| European Geography By Letter - C | 0 | - | 4.43 | 122,446 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,990 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,672 |
| European Geography By Letter - M | 0 | - | 4.69 | 131,990 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,813 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,332 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,548 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,235 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,624 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,442 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,096 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,394 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,362 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,168 |
| Capitals of French Regions | 0 | - | 4.45 | 16,151 |
| Regions of France | 0 | - | 4.70 | 121,689 |
| France Immigration by Country | 0 | - | 4.70 | 76,818 |
| Famous Germans | 0 | - | 4.50 | 55,650 |
| German Groups of Things | 0 | - | 4.47 | 38,585 |
| Capitals of German States | 0 | - | 4.74 | 29,032 |
