| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,980 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,263 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,739 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,309 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,306 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,140 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,591 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,465 |
| Name a Valid Asian Country | 0 | - | 4.98 | 119,960 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,495 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,438,447 |
| Asia Map Quiz | 0 | - | 4.99 | 906,124 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,131 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,349 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,140 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,780 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,730 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,789 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,965 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,586 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,915 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,957 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,289 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,689 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,335 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,150 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,609 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,393 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 70,610 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,654 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,036 |
| Countries of the Middle East | 0 | - | 4.96 | 198,753 |
| States of India | 0 | - | 4.94 | 189,774 |
| History of India | 0 | - | 4.61 | 21,268 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,278 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,812 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,316 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,011 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,491 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,937 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,942 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,320 |
| Monarchies of Asia | 0 | - | 4.97 | 70,546 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,393 |
| History of Iran | 0 | - | 4.65 | 16,260 |
| Provinces of Turkey | 0 | - | 4.95 | 200,404 |
| Philippines Country Quiz | 0 | - | 4.56 | 74,816 |
| Provinces of China | 0 | - | 4.97 | 199,772 |
| History of China | 0 | - | 4.37 | 56,650 |
| Japanese Prefectures | 0 | - | 4.98 | 134,351 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,138 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 92,735 |
| States of India Map Quiz | 0 | - | 4.82 | 25,987 |
| Countries Bordering India | 0 | - | 4.98 | 162,549 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,141 |
| Countries Closest to India | 0 | - | 4.96 | 102,158 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,724 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,292 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,003 |
| Name a Valid African Country | 0 | - | 4.98 | 152,838 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,970 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,178 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,458 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,057 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,649,890 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,153 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,379 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,104 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,287 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,016 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,954 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,886 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,394 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,071 |
| Byzantine History | 0 | - | 4.91 | 28,590 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,147 |
| Name the English Monarchs | 0 | - | 4.92 | 497,507 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,487 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,459 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,091 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,113 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.18 | 15,483 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 82,950 |
| Countries Bordering Iran | 0 | - | 4.83 | 94,735 |
| Countries that Border Iraq | 0 | - | 4.97 | 107,791 |
| Countries Closest to Turkey | 0 | - | 4.96 | 125,245 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,382 |
| Ottoman Empire Quiz | 0 | - | 4.46 | 17,004 |
| Geography of Egypt | 0 | - | 4.60 | 21,400 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,169 |
| Countries Closest to Yemen | 0 | - | 4.91 | 22,286 |
| Syria Country Quiz | 0 | - | 4.81 | 32,272 |
| Countries Closest to Cyprus | 0 | - | 4.90 | 54,831 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,392 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,745 |
| Countries Closest to Indonesia | 0 | - | 4.96 | 103,889 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,461 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,026 |
| Geography of China | 0 | - | 4.24 | 13,865 |
| China Cities Map Quiz | 0 | - | 4.93 | 103,936 |
| Provinces of China Map Quiz | 0 | - | 4.92 | 92,709 |
| Chinese Inventions | 0 | - | 4.30 | 33,713 |
| Countries that Border China | 0 | - | 4.96 | 261,722 |
| Japan Country Quiz | 0 | - | 4.92 | 141,134 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 76,893 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 59,666 |
| Countries Closest to Japan | 0 | - | 4.92 | 137,848 |
| Closest Countries to North Korea | 0 | - | 4.94 | 121,738 |
| Countries that Beat North Korea | 0 | - | 4.43 | 34,122 |
| Kazakhstan Country Quiz | 0 | - | 4.83 | 30,501 |
| Bhutan Country Quiz | 0 | - | 4.87 | 23,995 |
| Countries that Beat India | 0 | - | 4.41 | 62,556 |
| Hindu Countries | 0 | - | 4.85 | 49,458 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,418 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,420 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,803 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,803 |
| The Trojan War | 0 | - | 4.83 | 39,400 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,351 |
| Name that Greek Letter | 0 | - | 4.94 | 321,470 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,395 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 83,989 |
| Roman Emperors | 0 | - | 4.95 | 118,340 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,610 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,044 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,222 |
| Countries and States in the Caucasus | 0 | - | 4.46 | 51,120 |
| The Only Remaining Asian Country . . . | 0 | - | 4.69 | 45,428 |
| Middle Eastern Geography Quiz | 0 | - | 4.57 | 43,207 |
| Qatar Country Quiz | 0 | - | 4.85 | 31,268 |
| History of Egypt | 0 | - | 4.58 | 23,928 |
| Egypt Country Quiz | 0 | - | 4.82 | 76,992 |
| Countries that Beat Saudi Arabia | 0 | - | 4.74 | 46,071 |
| Oman Country Quiz | 0 | - | 4.86 | 26,656 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,389 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 52,954 |
| Brunei Country Quiz | 0 | - | 4.87 | 21,743 |
| Countries that Beat China | 0 | - | 4.86 | 114,630 |
| Countries that Beat Japan | 0 | - | 4.41 | 67,515 |
| The Life of Gandhi | 0 | - | 4.37 | 13,014 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,232 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,900 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,839 |
| American History Quotes #1 | 0 | - | 4.37 | 95,664 |
| American History Quotes #2 | 0 | - | 4.38 | 41,216 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,220 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,064 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,100 |
| History of Russia Quiz | 0 | - | 4.49 | 31,774 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,083 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,132 |
| Ancient Greek Words | 0 | - | 4.92 | 110,582 |
| History of Italy | 0 | - | 4.55 | 31,801 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,467 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,293 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,964 |
| Geography of Spain | 0 | - | 4.59 | 21,944 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,360 |
| Asian Physical Geography | 0 | - | 4.61 | 35,362 |
| East Asian Islands on the Map | 0 | - | 4.54 | 32,902 |
| 10 Westernmost Countries in Asia | 0 | - | 4.69 | 70,806 |
| Asian Island Nations | 0 | - | 4.63 | 93,709 |
| Asia's Busiest Airports | 0 | - | 4.77 | 52,238 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 412,519 |
| Turkmenistan Country Quiz | 0 | - | 4.81 | 25,653 |
| Arab Spring Countries | 0 | - | 4.51 | 43,794 |
| Countries Surrounding Istanbul | 0 | - | 4.89 | 24,687 |
| Countries Closest to Egypt | 0 | - | 4.83 | 100,499 |
| Countries that Beat Egypt | 0 | - | 4.87 | 56,548 |
| India Cities Map Quiz | 0 | - | 4.63 | 60,644 |
| Countries of the Indian Diaspora | 0 | - | 4.46 | 53,908 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,376 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,383 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,395 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,656 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,318 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,130 |
| German Groups of Things | 0 | - | 4.46 | 38,293 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,208 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,559 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,881 |
| Asian Islands | 0 | - | 4.49 | 20,762 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,782 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,352 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,118 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,528 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,025 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 276,975 |
| Asian Diaspora - Top 10 Countries | 0 | - | 4.75 | 41,075 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,881 |
| The Only Asian Country ... | 0 | - | 4.74 | 121,800 |
| Ten Highest HDI Countries in Asia | 0 | - | 4.45 | 54,623 |
| Random Asian City to Country | 0 | - | 4.56 | 44,379 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,663 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 106,429 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 45,649 |
| Provinces of the Philippines | 0 | - | 4.56 | 48,146 |
| The Vietnam War | 0 | - | 4.43 | 35,279 |
| Overseas Chinese Population | 0 | - | 4.55 | 43,152 |
| Inventions by Country #1 | 0 | - | 4.46 | 54,872 |
