| Countries of South America with an Empty Map | 0 | - | 4.95 | 105,664 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 55,097 |
| States of Brazil | 0 | - | 4.98 | 90,127 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,953 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 241,032 |
| States of Mexico | 0 | - | 4.96 | 178,914 |
| Brazil States Map Quiz | 0 | - | 4.87 | 48,774 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,812 |
| Word Chain - South America | 0 | - | 4.51 | 24,029 |
| United States Map Quiz | 0 | - | 4.98 | 4,174,263 |
| South America A-Z | 0 | - | 4.15 | 10,961 |
| Flags of North and South America | 0 | - | 4.99 | 378,453 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,926 |
| South American Physical Geography | 0 | - | 4.58 | 18,415 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,795 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,938 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,615 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,348 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,623 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,169 |
| World Currency Quiz | 0 | - | 4.92 | 307,829 |
| The Only American Country ... | 0 | - | 4.92 | 122,398 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,812 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,866 |
| Famous People from South America | 0 | - | 4.15 | 22,148 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,613 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 59,022 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,394 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,987 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 76,107 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,307 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,353 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,235 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,171 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,803 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,970 |
| Canada A-Z | 0 | - | 4.73 | 33,003 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,992 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,890 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,969 |
| History of Mexico | 0 | - | 4.52 | 15,377 |
| Mexico States Map Quiz | 0 | - | 4.85 | 105,830 |
| Central American Countries | 0 | - | 4.98 | 157,618 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,716 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 151,229 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,658 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,628 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,612 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,966 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 247,203 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,191 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,851 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,679 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 95,779 |
| Pixelated United States Map | 0 | - | 4.89 | 95,025 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,803 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,652 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,243 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,488 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,499 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,580 |
| U.S. States that Start with M | 0 | - | 4.94 | 188,642 |
| U.S. States By Population | 0 | - | 4.92 | 154,302 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,427 |
| U.S. States with Longest Names | 0 | - | 4.85 | 45,014 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,198 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,619 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,247 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,209 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,341 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,794 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,890 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,742 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,677 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,710 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,240 |
| Currencies by $ymbol | 0 | - | 4.56 | 33,617 |
| Guyana Country Quiz | 0 | - | 4.50 | 22,974 |
| Venezuela Country Quiz | 0 | - | 4.51 | 30,792 |
| Paraguay Country Quiz | 0 | - | 4.54 | 25,440 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,440 |
| Suriname Country Quiz | 0 | - | 4.61 | 19,962 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,162 |
| American Legal Vocabulary | 0 | - | 4.40 | 34,055 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,992 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,612 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,136 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,231 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 43,109 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 281,124 |
| Africa A-Z | 0 | - | 4.57 | 46,808 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,750 |
| Belize Country Quiz | 0 | - | 4.85 | 21,126 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,812 |
| Famous Caribbean People | 0 | - | 4.37 | 12,670 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,182 |
| Territories of the United States | 0 | - | 4.80 | 52,688 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,944 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,295 |
| New York City Geography | 0 | - | 4.43 | 33,208 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,956 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,509 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,952 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,500 |
| European Geography By Letter - D | 0 | - | 4.49 | 119,038 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,449 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,986 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,395 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,981 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,251 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,889 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,009 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,634 |
| Famous Germans | 0 | - | 4.50 | 55,894 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,581 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,560 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 66,178 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,742 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,304 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,746 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,419 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,428 |
| Middle East A-Z | 0 | - | 4.47 | 46,280 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,328,254 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,760 |
| Australian Capitals | 0 | - | 4.92 | 62,883 |
| South American Cities on the Map | 0 | - | 4.52 | 35,591 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,314 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,816 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,702 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,301 |
| United States Country Quiz | 0 | - | 4.43 | 102,386 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,116 |
| Canada Country Quiz | 0 | - | 4.55 | 133,220 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,720 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,887 |
| Official European Union Languages | 0 | - | 4.97 | 240,447 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,875 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,553 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,499 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,687 |
| Asia Map Quiz | 0 | - | 4.99 | 927,151 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,271 |
| A Quiz About Islam | 0 | - | 4.32 | 48,670 |
| Countries That Don't Recognize Israel | 0 | - | 4.68 | 35,251 |
| Africa Map Quiz | 0 | - | 5.00 | 2,131,358 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,865 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,641 |
| Australia Map Quiz | 0 | - | 4.95 | 346,605 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,540 |
| U.S. Geography by Letter - B | 0 | - | 4.54 | 70,177 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 58,637 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,942 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 750,527 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,784 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,805 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,178 |
| New England States | 0 | - | 4.51 | 59,916 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,124 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,141 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,252 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,352 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,200 |
| U.S. States by Borders | 0 | - | 4.61 | 35,520 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,730 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,416 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,493 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,999 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,281 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,859 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,548 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,545 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,915 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,482 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,363 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,624 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 83,188 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,352 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,431 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,457 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,473 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 93,011 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,356 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,684 |
| European Geography By Letter - E | 0 | - | 4.23 | 121,565 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,831 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,495 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,288 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,823 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,473 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,819 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,752 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,412 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 52,058 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,595 |
| European Geography A-Z | 0 | - | 4.29 | 49,536 |
| The Only European Country ... | 0 | - | 4.91 | 219,745 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,916 |
| Famous French People | 0 | - | 4.05 | 36,189 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,120 |
