| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 133,568 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,886 |
| Countries that Beat Saudi Arabia | 0 | - | 4.74 | 46,543 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,503 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,618 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,684 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,332 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,776 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,453 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,572 |
| Qatar Country Quiz | 0 | - | 4.86 | 31,656 |
| Jordan Country Quiz | 0 | - | 4.86 | 32,009 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,647 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,335 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,007 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,932 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,994 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,770 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,097 |
| Asia Map Quiz | 0 | - | 4.99 | 923,053 |
| Egypt Country Quiz | 0 | - | 4.83 | 77,835 |
| Oman Country Quiz | 0 | - | 4.86 | 27,037 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,331 |
| Byzantine History | 0 | - | 4.91 | 28,988 |
| Byzantine Emperors | 0 | - | 4.92 | 14,503 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,688 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,234 |
| Geography of Egypt | 0 | - | 4.60 | 21,584 |
| Countries Closest to Egypt | 0 | - | 4.83 | 101,455 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,795 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,271 |
| Countries that Beat Egypt | 0 | - | 4.91 | 66,525 |
| Saudi Arabia Country Quiz | 0 | - | 4.19 | 56,239 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,451 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,103 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,402 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,366 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,341 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,620 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,354 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,718 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,992 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,572 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,112 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,896 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,262 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,418 |
| Countries of the Middle East | 0 | - | 4.96 | 202,270 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,058 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,509 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,087 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,625 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,880 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,598 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,639 |
| Monarchies of Asia | 0 | - | 4.97 | 71,386 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,188 |
| Flags of the Middle East | 0 | - | 4.69 | 62,777 |
| History of Iran | 0 | - | 4.66 | 16,404 |
| Iran Country Quiz | 0 | - | 4.49 | 60,589 |
| Iraq Country Quiz | 0 | - | 4.43 | 41,082 |
| Turkey Country Quiz | 0 | - | 4.42 | 76,090 |
| Provinces of Turkey | 0 | - | 4.94 | 205,414 |
| United Arab Emirates Country Quiz | 0 | - | 4.44 | 35,371 |
| Lebanon Country Quiz | 0 | - | 4.56 | 36,126 |
| Syria Country Quiz | 0 | - | 4.80 | 32,983 |
| Provinces of China | 0 | - | 4.97 | 207,008 |
| History of China | 0 | - | 4.35 | 57,471 |
| Japanese Prefectures | 0 | - | 4.98 | 138,479 |
| States of India | 0 | - | 4.95 | 195,213 |
| History of India | 0 | - | 4.62 | 21,489 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,115 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 43,422 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,820 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,290 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,718,871 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,571 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,829 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,692 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,132 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,454 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,431 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,801 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,732 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,608 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,463 |
| Name the English Monarchs | 0 | - | 4.91 | 505,406 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,920 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,631 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,764 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,611 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.15 | 15,601 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,618 |
| Countries Closest to Turkey | 0 | - | 4.96 | 126,781 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,963 |
| Egyptian Gods and Goddesses | 0 | - | 4.43 | 27,630 |
| Countries Closest to Yemen | 0 | - | 4.92 | 22,718 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 55,987 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,910 |
| Countries Closest to Indonesia | 0 | - | 4.97 | 104,914 |
| Countries Closest to Vietnam | 0 | - | 4.96 | 94,283 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 78,062 |
| Geography of China | 0 | - | 4.21 | 14,001 |
| China Cities Map Quiz | 0 | - | 4.94 | 105,726 |
| Provinces of China Map Quiz | 0 | - | 4.92 | 94,409 |
| Chinese Inventions | 0 | - | 4.30 | 33,845 |
| Countries that Border China | 0 | - | 4.96 | 263,974 |
| Japan Country Quiz | 0 | - | 4.93 | 143,097 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,717 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 60,422 |
| Countries Closest to Japan | 0 | - | 4.92 | 139,050 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 33,221 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 93,615 |
| States of India Map Quiz | 0 | - | 4.84 | 26,800 |
| Countries Bordering India | 0 | - | 4.98 | 163,719 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,600 |
| Countries Closest to India | 0 | - | 4.97 | 103,110 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,492 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,914 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,941 |
| Name a Valid African Country | 0 | - | 4.98 | 154,801 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,333 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,331 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,809 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,393 |
| The Trojan War | 0 | - | 4.83 | 39,933 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,709 |
| Name that Greek Letter | 0 | - | 4.93 | 324,669 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,676 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,483 |
| Roman Emperors | 0 | - | 4.95 | 120,890 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,729 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,926 |
| Prime Ministers of the UK | 0 | - | 4.95 | 441,385 |
| Countries and States in the Caucasus | 0 | - | 4.46 | 51,729 |
| The Only Remaining Asian Country . . . | 0 | - | 4.64 | 46,045 |
| Middle Eastern Geography Quiz | 0 | - | 4.57 | 44,093 |
| Kuwait Country Quiz | 0 | - | 4.79 | 22,976 |
| Bahrain Country Quiz | 0 | - | 4.69 | 21,802 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 70,380 |
| History of Egypt | 0 | - | 4.58 | 24,088 |
| Yemen Country Quiz | 0 | - | 4.57 | 29,700 |
| Palestine Country Quiz | 0 | - | 4.08 | 36,581 |
| Cyprus Country Quiz | 0 | - | 4.61 | 31,155 |
| Brunei Country Quiz | 0 | - | 4.87 | 22,044 |
| Countries that Beat China | 0 | - | 4.85 | 116,517 |
| Countries that Beat Japan | 0 | - | 4.41 | 68,279 |
| Closest Countries to North Korea | 0 | - | 4.94 | 123,114 |
| Countries that Beat North Korea | 0 | - | 4.43 | 34,616 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,312 |
| Countries that Beat India | 0 | - | 4.42 | 63,235 |
| Hindu Countries | 0 | - | 4.87 | 50,465 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,345 |
| Names of Generations | 0 | - | 4.09 | 45,393 |
| American History Quotes #1 | 0 | - | 4.37 | 96,168 |
| American History Quotes #2 | 0 | - | 4.38 | 41,484 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,562 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,314 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,712 |
| History of Russia Quiz | 0 | - | 4.47 | 31,985 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,311 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,984 |
| Ancient Greek Words | 0 | - | 4.93 | 112,241 |
| History of Italy | 0 | - | 4.55 | 32,108 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,783 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,380 |
| Geography of Spain | 0 | - | 4.59 | 22,149 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,039 |
| Asian Physical Geography | 0 | - | 4.61 | 35,596 |
| East Asian Islands on the Map | 0 | - | 4.55 | 33,176 |
| 10 Westernmost Countries in Asia | 0 | - | 4.69 | 71,503 |
| Asian Island Nations | 0 | - | 4.63 | 94,400 |
| Asia's Busiest Airports | 0 | - | 4.69 | 53,047 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 416,989 |
| Turkmenistan Country Quiz | 0 | - | 4.81 | 26,101 |
| Arab Spring Countries | 0 | - | 4.51 | 44,182 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,078 |
| Ottoman Empire Quiz | 0 | - | 4.37 | 17,199 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 83,241 |
| Countries Surrounding Istanbul | 0 | - | 4.89 | 24,933 |
| Israel Immigration by Country | 0 | - | 4.29 | 36,296 |
| The Life of Gandhi | 0 | - | 4.37 | 13,069 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,414 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,666 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,967 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,128 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,342 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,733 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,900 |
| German Groups of Things | 0 | - | 4.47 | 38,596 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,064 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,413 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,652 |
| Asian Islands | 0 | - | 4.49 | 20,887 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,363 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,958 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,583 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,106 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,569 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,304 |
