| Japanese Loanwords | 0 | - | 4.47 | 84,336 |
| English Words of Arabic Origin | 0 | - | 4.54 | 49,600 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,066 |
| German Loan Words | 0 | - | 4.27 | 135,449 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,230 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,236 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,650 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,729 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,233 |
| States of India | 0 | - | 4.94 | 189,950 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,605 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,980 |
| Provinces of Turkey | 0 | - | 4.95 | 200,872 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,427 |
| Provinces of China | 0 | - | 4.97 | 200,015 |
| Japanese Prefectures | 0 | - | 4.98 | 134,489 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,362 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,233 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,704 |
| Name that Greek Letter | 0 | - | 4.94 | 321,587 |
| Countries Closest to Yemen | 0 | - | 4.91 | 22,297 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,787 |
| Countries and States in the Caucasus | 0 | - | 4.46 | 51,145 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,129 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 273,083 |
| Middle Eastern Geography Quiz | 0 | - | 4.57 | 43,248 |
| China's Territorial Disputes | 0 | - | 4.44 | 35,445 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,668 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,702 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,240 |
| Ancient Greek Words | 0 | - | 4.92 | 110,639 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 34,049 |
| Asian Physical Geography | 0 | - | 4.61 | 35,368 |
| East Asian Islands on the Map | 0 | - | 4.54 | 32,912 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,422 |
| Asia's Busiest Airports | 0 | - | 4.77 | 52,260 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,527 |
| Countries of the Indian Diaspora | 0 | - | 4.46 | 53,922 |
| History of India | 0 | - | 4.61 | 21,278 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,468 |
| Native American Words | 0 | - | 4.26 | 24,705 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,094 |
| Top 10 European Countries by English Proficiency | 0 | - | 4.74 | 65,366 |
| American to British Word Translation | 0 | - | 4.06 | 117,042 |
| Asian Islands | 0 | - | 4.49 | 20,763 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,819 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,382 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,149 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,553 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,059 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,320 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,316 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,145 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,892 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,700 |
| A Quiz About Islam | 0 | - | 4.31 | 48,195 |
| Middle East A-Z | 0 | - | 4.47 | 45,776 |
| Countries That Don't Recognize Israel | 0 | - | 4.63 | 34,426 |
| Provinces of the Philippines | 0 | - | 4.56 | 48,257 |
| Largest Indonesian Islands | 0 | - | 4.75 | 49,661 |
| Chinese Zodiac Quiz | 0 | - | 4.80 | 138,935 |
| Dynasties of China | 0 | - | 4.63 | 27,608 |
| History of China | 0 | - | 4.37 | 56,679 |
| Overseas Chinese Population | 0 | - | 4.55 | 43,163 |
| Sushi Translation | 0 | - | 4.08 | 13,899 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 32,527 |
| Last Name Vocabulary | 0 | - | 4.17 | 56,180 |
| Mythical Creatures #2 | 0 | - | 4.04 | 111,046 |
| Christmas Vocabulary | 0 | - | 4.06 | 33,345 |
| North Korea... or South Korea? | 0 | - | 4.47 | 80,279 |
| Bhutan... or Nepal? | 0 | - | 4.59 | 17,643 |
| Countries of Africa | 0 | - | 5.00 | 2,506,709 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,831 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,779 |
| African East Coast | 0 | - | 4.96 | 95,008 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,897 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,074 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,767 |
| Australian Capitals | 0 | - | 4.92 | 62,592 |
| Australia Map Quiz | 0 | - | 4.94 | 342,401 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,203 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,516 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,580 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,049 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,182 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,905 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,565 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,238 |
| Official European Union Languages | 0 | - | 4.97 | 236,469 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,670 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,522 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,479 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,074 |
| The Only European Country ... | 0 | - | 4.91 | 213,728 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,461 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.39 | 82,302 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,550 |
| British Spellings | 0 | - | 4.07 | 99,200 |
| Asian Geography By Letter - S | 0 | - | 4.18 | 55,910 |
| Asian Geography by Letter - D | 0 | - | 4.27 | 51,682 |
| Asian Geography by Letter - G | 0 | - | 4.35 | 50,984 |
| Asian Geography by Letter - I | 0 | - | 4.36 | 67,502 |
| Asian Geography by Letter - C | 0 | - | 4.32 | 64,491 |
| Asian Geography by Letter - N | 0 | - | 4.33 | 49,999 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,449 |
| Asia Map Quiz | 0 | - | 4.99 | 906,717 |
| South Asian Cities by Map | 0 | - | 4.33 | 23,419 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,498 |
| Word Chain - Asia | 0 | - | 4.34 | 29,217 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,424 |
| Asian Geography By Letter - J | 0 | - | 4.25 | 34,485 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,622 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.15 | 15,489 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,442 |
| Ottoman Empire Quiz | 0 | - | 4.42 | 17,021 |
| History of Egypt | 0 | - | 4.58 | 23,930 |
| Emirates of the United Arab Emirates | 0 | - | 4.53 | 18,720 |
| Largest Philippines Islands | 0 | - | 4.63 | 24,373 |
| Chinese Inventions | 0 | - | 4.30 | 33,717 |
| Cities of the Pearl River Delta | 0 | - | 4.62 | 15,305 |
| Chinese Geography on the Map | 0 | - | 4.56 | 24,188 |
| China by Picture | 0 | - | 4.51 | 62,518 |
| Japanese Companies | 0 | - | 4.28 | 34,074 |
| Four Main Islands of Japan | 0 | - | 4.52 | 26,766 |
| Elemental Words | 0 | - | 4.96 | 51,976 |
| Foods by Alternate Definition | 0 | - | 3.88 | 53,419 |
| Movie Title Vocabulary Quiz #1 | 0 | - | 4.23 | 59,563 |
| Song Title Vocabulary | 0 | - | 4.35 | 62,205 |
| First Name Vocabulary #1 | 0 | - | 3.84 | 48,173 |
| First Name Vocabulary #2 | 0 | - | 3.96 | 36,372 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 158,158 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 85,967 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,402 |
| Officially Recognized Languages of India | 0 | - | 4.38 | 31,068 |
| The Life of Gandhi | 0 | - | 4.37 | 13,017 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,423 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,020 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,993 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,579 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,540 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,224 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,481 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,236 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,044 |
| The Only African Country ... | 0 | - | 4.99 | 128,332 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,766 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,380 |
| African Island Countries | 0 | - | 4.96 | 100,749 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,589 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,039 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,071 |
| Flags of Oceania | 0 | - | 5.00 | 255,022 |
| Australian States and Territories | 0 | - | 4.95 | 140,645 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,394 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,008 |
| Australian Slang | 0 | - | 4.25 | 28,467 |
| Australia True or False | 0 | - | 4.87 | 56,492 |
| Flags of North and South America | 0 | - | 4.99 | 366,822 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,133 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,141 |
| The Only American Country ... | 0 | - | 4.92 | 120,724 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,313 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,115 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,927 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,709 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,285 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,920 |
| North America Map Quiz | 0 | - | 4.98 | 244,312 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,873 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,909 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,932 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,286 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,370 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,842 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,039 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,470 |
| US States Quiz | 0 | - | 5.00 | 16,693,982 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,738 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,783 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,592 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,344 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,484 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,236 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,890 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,307 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,442 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,673 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,256 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,021 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,325 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,448 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,803 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,827 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,188 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,751 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,787 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,763 |
| Monarchies of Europe | 0 | - | 4.90 | 97,284 |
| European Countries with One Border | 0 | - | 4.97 | 181,577 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,488 |
