| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 111,485 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 110,882 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 113,415 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 74,648 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,825 |
| Coldest Countries | 0 | - | 4.97 | 137,197 |
| Coldest World Capitals | 0 | - | 4.95 | 133,027 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,219 |
| Countries with the Least Precipitation | 0 | - | 4.90 | 82,336 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,283 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,338 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,303 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,977 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,622 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,022 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,451 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,440 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,226 |
| Coldest Countries with Exceptions | 0 | - | 4.69 | 38,685 |
| Africa A-Z | 0 | - | 4.57 | 46,357 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,461 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 34,015 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,061 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,150 |
| Countries with the Most Tropical Cyclones | 0 | - | 4.55 | 49,573 |
| Top 10 Hottest European Capitals | 0 | - | 4.63 | 33,075 |
| Countries with the Most Total Precipitation | 0 | - | 4.69 | 65,540 |
| Countries with the Most Precipitation | 0 | - | 4.69 | 52,655 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,304,374 |
| Australian Capitals | 0 | - | 4.92 | 62,590 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,717 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,563 |
| Official European Union Languages | 0 | - | 4.97 | 236,467 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,663 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,352 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,855 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,787 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,661 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,185 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,836 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,639 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,604 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,005 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,273 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,926 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,573 |
| Famous Germans | 0 | - | 4.50 | 54,595 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,308 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,819 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,381 |
| 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 | 57,057 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,699 |
| Middle East A-Z | 0 | - | 4.47 | 45,774 |
| Metals of Antiquity | 0 | - | 4.94 | 92,878 |
| Hottest Cities in the U.S. | 0 | - | 4.10 | 61,960 |
| Coldest Cities in the U.S. | 0 | - | 4.35 | 54,286 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,750 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,748 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,029 |
| Canada A-Z | 0 | - | 4.73 | 32,640 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,068 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,408 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,196 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,414 |
| Asia Map Quiz | 0 | - | 4.99 | 906,658 |
| A Quiz About Islam | 0 | - | 4.31 | 48,193 |
| Countries That Don't Recognize Israel | 0 | - | 4.63 | 34,422 |
| Hottest Capital Cities | 0 | - | 4.41 | 30,953 |
| Countries of Africa | 0 | - | 5.00 | 2,506,552 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,778 |
| African East Coast | 0 | - | 4.96 | 95,003 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,894 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,762 |
| Australia Map Quiz | 0 | - | 4.94 | 342,386 |
| 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 | 99,087 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,116 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,027 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,630 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,036 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,179 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,893 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,224 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,170 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,416 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,860 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,236 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,454 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,129 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,899 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,281 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,521 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,489 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,469 |
| European Geography A-Z | 0 | - | 4.28 | 48,984 |
| The Only European Country ... | 0 | - | 4.91 | 213,706 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,454 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,548 |
| Asian Geography By Letter - S | 0 | - | 4.18 | 55,909 |
| 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 | 49,998 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,420 |
| Asian Geography By Letter - J | 0 | - | 4.25 | 34,484 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,430 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,597 |
| Japanese Companies | 0 | - | 4.28 | 34,072 |
| Astronomy Quiz | 0 | - | 4.89 | 81,654 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,533 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,172 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,786 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,083 |
| Countries with NO Military | 0 | - | 4.97 | 61,136 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 85,051 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,694 |
| Monarchies of the World | 0 | - | 4.94 | 166,530 |
| 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 | 598,972 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,887 |
| Fast Math - Addition | 0 | - | 4.87 | 519,718 |
| NATO Countries | 0 | - | 4.98 | 275,531 |
| EU Countries Quiz | 0 | - | 4.99 | 269,748 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,973 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,690 |
| Books of the Protestant Bible | 0 | - | 4.89 | 207,086 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,347 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.89 | 65,138 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,696 |
| Most Common JetPunk Answers - Countries | 0 | - | 4.91 | 86,644 |
| Countries with the Most Major Earthquakes | 0 | - | 4.94 | 116,735 |
| Country Superlatives - Top 2 | 0 | - | 4.99 | 70,255 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,422 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,976 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,572 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,539 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,218 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,477 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,033 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,362 |
| African Island Countries | 0 | - | 4.96 | 100,743 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,580 |
| Australian States and Territories | 0 | - | 4.95 | 140,619 |
| Famous Australians by Description | 0 | - | 4.23 | 27,542 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,007 |
| Australia True or False | 0 | - | 4.87 | 56,489 |
| Flags of North and South America | 0 | - | 4.99 | 366,743 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,133 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,137 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,108 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,891 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,238 |
| North America Map Quiz | 0 | - | 4.98 | 244,293 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,369 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,707 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,771 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,587 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,407 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,481 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,234 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,798 |
| Celtic Nations | 0 | - | 4.69 | 46,806 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,418 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,670 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,256 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,229 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,446 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,713 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,759 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,099 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,214 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,153 |
| Slavic Countries | 0 | - | 4.96 | 110,817 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,550 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,960 |
| France A-Z | 0 | - | 4.16 | 38,051 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,033 |
| Switzerland A-Z | 0 | - | 4.45 | 25,501 |
| Counties of England | 0 | - | 4.97 | 788,896 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,215 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,321 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,729 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,375 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,201 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,665 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,445 |
| Most Guessed Cities in Asia - Not Capitals | 0 | - | 4.37 | 28,875 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,645 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,723 |
| Countries of the Middle East | 0 | - | 4.96 | 198,832 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,233 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,400 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,220 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,606 |
| Countries with Glaciers | 0 | - | 4.97 | 104,635 |
