| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 111,497 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 110,886 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 113,425 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 74,651 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,828 |
| Coldest Countries | 0 | - | 4.97 | 137,207 |
| Coldest World Capitals | 0 | - | 4.95 | 133,034 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,220 |
| Countries with the Least Precipitation | 0 | - | 4.90 | 82,338 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,287 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,346 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,312 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,982 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,623 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,024 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,462 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,441 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,252 |
| Coldest Countries with Exceptions | 0 | - | 4.69 | 38,688 |
| Africa A-Z | 0 | - | 4.57 | 46,361 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,478 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 34,075 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,071 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,159 |
| Countries with the Most Tropical Cyclones | 0 | - | 4.55 | 49,574 |
| Top 10 Hottest European Capitals | 0 | - | 4.63 | 33,078 |
| Countries with the Most Total Precipitation | 0 | - | 4.69 | 65,541 |
| Countries with the Most Precipitation | 0 | - | 4.69 | 52,656 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,304,462 |
| Australian Capitals | 0 | - | 4.92 | 62,592 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,721 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,568 |
| Official European Union Languages | 0 | - | 4.97 | 236,473 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,676 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,369 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 110,873 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,805 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,679 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,196 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,852 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,651 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,610 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,010 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,281 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,219 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,578 |
| Famous Germans | 0 | - | 4.50 | 54,601 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,350 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,820 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,383 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,152 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,556 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,062 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,701 |
| Middle East A-Z | 0 | - | 4.47 | 45,778 |
| Metals of Antiquity | 0 | - | 4.94 | 92,884 |
| Hottest Cities in the U.S. | 0 | - | 4.10 | 61,963 |
| Coldest Cities in the U.S. | 0 | - | 4.35 | 54,289 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,760 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,872 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,114 |
| Canada A-Z | 0 | - | 4.73 | 32,642 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,087 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,409 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,203 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,469 |
| Asia Map Quiz | 0 | - | 4.99 | 906,752 |
| A Quiz About Islam | 0 | - | 4.31 | 48,196 |
| Countries That Don't Recognize Israel | 0 | - | 4.63 | 34,426 |
| Hottest Capital Cities | 0 | - | 4.41 | 30,953 |
| Countries of Africa | 0 | - | 5.00 | 2,506,863 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,786 |
| African East Coast | 0 | - | 4.96 | 95,013 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,899 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,772 |
| Australia Map Quiz | 0 | - | 4.94 | 342,420 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,527 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,072 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,088 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,247 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,056 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,630 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,059 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,187 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,915 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,249 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,186 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,464 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,876 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,250 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,467 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,141 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,905 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,286 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,525 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,496 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,488 |
| European Geography A-Z | 0 | - | 4.28 | 48,987 |
| The Only European Country ... | 0 | - | 4.91 | 213,735 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,471 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,553 |
| Asian Geography By Letter - S | 0 | - | 4.18 | 55,913 |
| Asian Geography by Letter - D | 0 | - | 4.27 | 51,685 |
| Asian Geography by Letter - G | 0 | - | 4.35 | 50,986 |
| Asian Geography by Letter - I | 0 | - | 4.36 | 67,503 |
| Asian Geography by Letter - C | 0 | - | 4.32 | 64,492 |
| Asian Geography by Letter - N | 0 | - | 4.33 | 50,001 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,430 |
| Asian Geography By Letter - J | 0 | - | 4.25 | 34,486 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,432 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,635 |
| Japanese Companies | 0 | - | 4.28 | 34,074 |
| Astronomy Quiz | 0 | - | 4.89 | 81,661 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,533 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,174 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,816 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,139 |
| Countries with NO Military | 0 | - | 4.97 | 61,146 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 85,055 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,708 |
| Monarchies of the World | 0 | - | 4.94 | 166,549 |
| Hottest Countries with Exceptions | 0 | - | 4.34 | 20,459 |
| U.S. Cities with the Most Precipitation | 0 | - | 4.26 | 9,366 |
| Disney Animated Characters | 0 | - | 4.88 | 598,992 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,890 |
| Fast Math - Addition | 0 | - | 4.87 | 519,755 |
| NATO Countries | 0 | - | 4.98 | 275,564 |
| EU Countries Quiz | 0 | - | 4.99 | 269,790 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,986 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,723 |
| Books of the Protestant Bible | 0 | - | 4.89 | 207,113 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,383 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.89 | 65,140 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,702 |
| Most Common JetPunk Answers - Countries | 0 | - | 4.91 | 86,652 |
| Countries with the Most Major Earthquakes | 0 | - | 4.94 | 116,741 |
| Country Superlatives - Top 2 | 0 | - | 4.99 | 70,255 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,426 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,048 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,583 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,541 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,229 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,484 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,052 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,384 |
| African Island Countries | 0 | - | 4.96 | 100,754 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,595 |
| Australian States and Territories | 0 | - | 4.95 | 140,668 |
| Famous Australians by Description | 0 | - | 4.23 | 27,560 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,008 |
| Australia True or False | 0 | - | 4.87 | 56,494 |
| Flags of North and South America | 0 | - | 4.99 | 366,857 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,136 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,143 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,119 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,966 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,308 |
| North America Map Quiz | 0 | - | 4.98 | 244,331 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,370 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,742 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,795 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,594 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,409 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,486 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,237 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,967 |
| Celtic Nations | 0 | - | 4.69 | 46,807 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,474 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,679 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,258 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,251 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,449 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,761 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,797 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,106 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,222 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,168 |
| Slavic Countries | 0 | - | 4.96 | 110,827 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,551 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,961 |
| France A-Z | 0 | - | 4.16 | 38,054 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,039 |
| Switzerland A-Z | 0 | - | 4.45 | 25,502 |
| Counties of England | 0 | - | 4.97 | 788,957 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,271 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,329 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,735 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,377 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,207 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,676 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,455 |
| Most Guessed Cities in Asia - Not Capitals | 0 | - | 4.37 | 28,875 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,653 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,733 |
| Countries of the Middle East | 0 | - | 4.96 | 198,851 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,237 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,463 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,223 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,612 |
| Countries with Glaciers | 0 | - | 4.97 | 104,639 |
