| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,988 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,295 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,770 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,312 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,311 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,142 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,632 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,495 |
| Name a Valid Asian Country | 0 | - | 4.98 | 119,994 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,501 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,046 |
| Asia Map Quiz | 0 | - | 4.99 | 906,404 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,144 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,385 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,446 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,160 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,960 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,793 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,973 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,598 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,924 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,962 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,309 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,710 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,352 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,174 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,633 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,412 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,633 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,692 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,084 |
| Countries of the Middle East | 0 | - | 4.96 | 198,791 |
| States of India | 0 | - | 4.94 | 189,854 |
| History of India | 0 | - | 4.61 | 21,271 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,295 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,844 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,343 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,041 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,500 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,958 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,968 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,343 |
| Monarchies of Asia | 0 | - | 4.97 | 70,563 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,409 |
| History of Iran | 0 | - | 4.65 | 16,262 |
| Provinces of Turkey | 0 | - | 4.95 | 200,692 |
| Philippines Country Quiz | 0 | - | 4.56 | 74,835 |
| Provinces of China | 0 | - | 4.97 | 199,858 |
| History of China | 0 | - | 4.37 | 56,665 |
| Japanese Prefectures | 0 | - | 4.98 | 134,411 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,163 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 92,752 |
| States of India Map Quiz | 0 | - | 4.82 | 25,997 |
| Countries Bordering India | 0 | - | 4.98 | 162,559 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,145 |
| Countries Closest to India | 0 | - | 4.97 | 102,175 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,741 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,304 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,026 |
| Name a Valid African Country | 0 | - | 4.98 | 152,863 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,972 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,183 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,461 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,083 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,650,972 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,176 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,383 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,117 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,350 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,054 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,022 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,906 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,485 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,128 |
| Byzantine History | 0 | - | 4.91 | 28,598 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,169 |
| Name the English Monarchs | 0 | - | 4.92 | 497,613 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,490 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,471 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,134 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,124 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.15 | 15,484 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 82,959 |
| Countries Bordering Iran | 0 | - | 4.83 | 94,753 |
| Countries that Border Iraq | 0 | - | 4.97 | 107,804 |
| Countries Closest to Turkey | 0 | - | 4.96 | 125,287 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,432 |
| Ottoman Empire Quiz | 0 | - | 4.46 | 17,014 |
| Geography of Egypt | 0 | - | 4.60 | 21,401 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,193 |
| Countries Closest to Yemen | 0 | - | 4.91 | 22,293 |
| Syria Country Quiz | 0 | - | 4.81 | 32,276 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 54,845 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,410 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,757 |
| Countries Closest to Indonesia | 0 | - | 4.96 | 103,903 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,470 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,038 |
| Geography of China | 0 | - | 4.24 | 13,867 |
| China Cities Map Quiz | 0 | - | 4.93 | 103,971 |
| Provinces of China Map Quiz | 0 | - | 4.92 | 92,720 |
| Chinese Inventions | 0 | - | 4.30 | 33,715 |
| Countries that Border China | 0 | - | 4.96 | 261,750 |
| Japan Country Quiz | 0 | - | 4.92 | 141,171 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 76,908 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 59,678 |
| Countries Closest to Japan | 0 | - | 4.92 | 137,867 |
| Closest Countries to North Korea | 0 | - | 4.94 | 121,753 |
| Countries that Beat North Korea | 0 | - | 4.43 | 34,129 |
| Kazakhstan Country Quiz | 0 | - | 4.85 | 30,631 |
| Bhutan Country Quiz | 0 | - | 4.87 | 23,999 |
| Countries that Beat India | 0 | - | 4.41 | 62,563 |
| Hindu Countries | 0 | - | 4.85 | 49,496 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,460 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,431 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,812 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,828 |
| The Trojan War | 0 | - | 4.83 | 39,409 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,493 |
| Name that Greek Letter | 0 | - | 4.94 | 321,502 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,445 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,011 |
| Roman Emperors | 0 | - | 4.95 | 118,364 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,624 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,060 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,368 |
| Countries and States in the Caucasus | 0 | - | 4.46 | 51,134 |
| The Only Remaining Asian Country . . . | 0 | - | 4.69 | 45,438 |
| Middle Eastern Geography Quiz | 0 | - | 4.57 | 43,228 |
| Qatar Country Quiz | 0 | - | 4.85 | 31,275 |
| History of Egypt | 0 | - | 4.58 | 23,929 |
| Egypt Country Quiz | 0 | - | 4.82 | 77,001 |
| Countries that Beat Saudi Arabia | 0 | - | 4.74 | 46,079 |
| Oman Country Quiz | 0 | - | 4.86 | 26,658 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,392 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 52,961 |
| Brunei Country Quiz | 0 | - | 4.87 | 21,744 |
| Countries that Beat China | 0 | - | 4.86 | 114,660 |
| Countries that Beat Japan | 0 | - | 4.41 | 67,524 |
| The Life of Gandhi | 0 | - | 4.37 | 13,014 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,261 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,907 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,845 |
| American History Quotes #1 | 0 | - | 4.37 | 95,671 |
| American History Quotes #2 | 0 | - | 4.38 | 41,220 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,224 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,067 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,161 |
| History of Russia Quiz | 0 | - | 4.49 | 31,782 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,086 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,434 |
| Ancient Greek Words | 0 | - | 4.92 | 110,616 |
| History of Italy | 0 | - | 4.55 | 31,806 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,470 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,308 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,968 |
| Geography of Spain | 0 | - | 4.59 | 21,946 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,370 |
| Asian Physical Geography | 0 | - | 4.61 | 35,364 |
| East Asian Islands on the Map | 0 | - | 4.54 | 32,903 |
| 10 Westernmost Countries in Asia | 0 | - | 4.69 | 70,814 |
| Asian Island Nations | 0 | - | 4.63 | 93,724 |
| Asia's Busiest Airports | 0 | - | 4.77 | 52,248 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 412,608 |
| Turkmenistan Country Quiz | 0 | - | 4.81 | 25,660 |
| Arab Spring Countries | 0 | - | 4.51 | 43,803 |
| Countries Surrounding Istanbul | 0 | - | 4.89 | 24,692 |
| Countries Closest to Egypt | 0 | - | 4.83 | 100,511 |
| Countries that Beat Egypt | 0 | - | 4.88 | 56,561 |
| India Cities Map Quiz | 0 | - | 4.63 | 60,646 |
| Countries of the Indian Diaspora | 0 | - | 4.46 | 53,914 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,410 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,443 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,429 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,694 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,067 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,214 |
| German Groups of Things | 0 | - | 4.46 | 38,295 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,296 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,582 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,898 |
| Asian Islands | 0 | - | 4.49 | 20,763 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,799 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,368 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,135 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,543 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,044 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,019 |
| Asian Diaspora - Top 10 Countries | 0 | - | 4.75 | 41,082 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,884 |
| The Only Asian Country ... | 0 | - | 4.74 | 121,828 |
| Ten Highest HDI Countries in Asia | 0 | - | 4.45 | 54,630 |
| Random Asian City to Country | 0 | - | 4.56 | 44,383 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,682 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 106,438 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 48,305 |
| Provinces of the Philippines | 0 | - | 4.56 | 48,215 |
| The Vietnam War | 0 | - | 4.43 | 35,283 |
| Overseas Chinese Population | 0 | - | 4.55 | 43,156 |
| Inventions by Country #1 | 0 | - | 4.46 | 54,877 |
