| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,098 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,304 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,491 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,304 |
| US States Quiz | 0 | - | 5.00 | 16,691,446 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,182 |
| States of Mexico | 0 | - | 4.95 | 173,232 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,741 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,697 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,608 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,610 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,505 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,590 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,251 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,765 |
| Pixelated United States Map | 0 | - | 4.89 | 93,430 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,396 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,807 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,195 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,674 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,307 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,357 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,582 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,856 |
| U.S. States By Population | 0 | - | 4.92 | 152,316 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,343 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,827 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,502 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,739 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,844 |
| Canada Country Quiz | 0 | - | 4.54 | 131,675 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,582 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,789 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,353 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,526 |
| US States with an Empty Map | 0 | - | 5.00 | 618,514 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,039 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,909 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,111 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,641 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,867 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,495 |
| Mexican Foods | 0 | - | 4.07 | 14,607 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,582 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,828 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,608 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,997 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,527 |
| Flags of North and South America | 0 | - | 4.99 | 366,604 |
| Belize Country Quiz | 0 | - | 4.85 | 20,791 |
| O Canada Lyrics | 0 | - | 4.47 | 50,777 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,653 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,736 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,341 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,125 |
| California Groups of Things | 0 | - | 4.25 | 45,262 |
| New York Groups of Things | 0 | - | 4.38 | 59,926 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,230 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,117 |
| Capital Cities Chain | 0 | - | 4.84 | 81,874 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,990 |
| Word Chain - Australia | 0 | - | 4.37 | 38,010 |
| The Only American Country ... | 0 | - | 4.92 | 120,714 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,465 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,072 |
| United States Country Quiz | 0 | - | 4.43 | 100,536 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,588 |
| Movies by State | 0 | - | 4.27 | 40,438 |
| Canada A-Z | 0 | - | 4.73 | 32,639 |
| Ontario Cities Map Quiz | 0 | - | 4.64 | 19,341 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,304 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,636 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,315 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,806 |
| Name a Valid African Country | 0 | - | 4.98 | 152,887 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,059 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,069 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,043 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,522 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,070 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,609 |
| Mexico Country Quiz | 0 | - | 4.49 | 71,957 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,309 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,184 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,463 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,895 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,361 |
| States of Brazil | 0 | - | 4.98 | 86,306 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,301 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,414 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,486 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,003 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,208 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,673 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,707 |
| Random U.S. City to State | 0 | - | 4.45 | 75,275 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,246 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,781 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,421 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,679 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,725 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,577 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,193 |
| New England States | 0 | - | 4.51 | 59,704 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,462 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,880 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,296 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,614 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,651 |
| U.S. States by Borders | 0 | - | 4.63 | 35,058 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,222 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,113 |
| Most Valuable Crops by U.S. State | 0 | - | 4.40 | 38,919 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,976 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,012 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,358 |
| Canadian Islands on the Map | 0 | - | 4.39 | 19,913 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,399 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,089 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,070 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,925 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,554 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,506 |
| Word Chain - France | 0 | - | 4.38 | 42,572 |
| Italian Foods | 0 | - | 4.30 | 72,147 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,655 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,008 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,400 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,052 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,028 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,269 |
| Countries that Beat Brazil | 0 | - | 4.49 | 67,848 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 31,893 |
| Cuba Country Quiz | 0 | - | 4.69 | 51,146 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,853 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,331 |
| Top U.S. Universities | 0 | - | 4.15 | 144,016 |
| Largest United States Airlines | 0 | - | 4.39 | 54,826 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,841 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,021 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.49 | 37,952 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,333 |
| U.S. States by Governor | 0 | - | 4.43 | 17,978 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,568 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,545 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,750 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,645 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,387 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,269 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,018 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.45 | 50,563 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,408 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,441 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,671 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,563 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,366 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,258 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,464 |
| Musical Acts by State | 0 | - | 4.05 | 19,553 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,760 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,404 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,069 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,387 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,337 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,254 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,386 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,661 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,555 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,000 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,224 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,999 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,491 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,865 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,532 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,846 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,297 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 334,516 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,851 |
| U.S. Geography by Letter - C | 0 | - | 4.26 | 73,332 |
| U.S. Geography by Letter - A | 0 | - | 4.38 | 62,302 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,299 |
| U.S. Geography by Letter - T | 0 | - | 4.27 | 48,983 |
| U.S. Geography by Letter - P | 0 | - | 4.34 | 47,373 |
| U.S. Geography by Letter - M | 0 | - | 4.13 | 52,584 |
| U.S. Geography by Letter - L | 0 | - | 4.03 | 40,342 |
| U.S. Geography by Letter - G | 0 | - | 4.12 | 38,590 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 39,316 |
| El Salvador Country Quiz | 0 | - | 4.62 | 31,462 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,194 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,672 |
| Panama Country Quiz | 0 | - | 4.61 | 25,593 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,350 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.66 | 21,897 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,203 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,638 |
| American Foods | 0 | - | 3.66 | 39,272 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,785 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,343 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,928 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,150 |
