| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,090 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,294 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,474 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,297 |
| US States Quiz | 0 | - | 5.00 | 16,689,511 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,160 |
| States of Mexico | 0 | - | 4.95 | 173,208 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,728 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,597 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,599 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,441 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,503 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,573 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,248 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,732 |
| Pixelated United States Map | 0 | - | 4.89 | 93,417 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,377 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,796 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,185 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,654 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,296 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,345 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,567 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,832 |
| U.S. States By Population | 0 | - | 4.92 | 152,300 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,323 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,819 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,497 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,734 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,833 |
| Canada Country Quiz | 0 | - | 4.54 | 131,670 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,573 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,786 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,341 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,507 |
| US States with an Empty Map | 0 | - | 5.00 | 618,455 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,031 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,903 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,109 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,628 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,852 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,493 |
| Mexican Foods | 0 | - | 4.07 | 14,606 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,560 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,818 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,597 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,982 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,524 |
| Flags of North and South America | 0 | - | 4.99 | 366,483 |
| Belize Country Quiz | 0 | - | 4.85 | 20,790 |
| O Canada Lyrics | 0 | - | 4.47 | 50,774 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,586 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,680 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,254 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,123 |
| California Groups of Things | 0 | - | 4.25 | 45,261 |
| New York Groups of Things | 0 | - | 4.38 | 59,922 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,226 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,114 |
| Capital Cities Chain | 0 | - | 4.84 | 81,867 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,988 |
| Word Chain - Australia | 0 | - | 4.37 | 38,008 |
| The Only American Country ... | 0 | - | 4.92 | 120,706 |
| 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 | 100,530 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,587 |
| Movies by State | 0 | - | 4.27 | 40,436 |
| Canada A-Z | 0 | - | 4.73 | 32,637 |
| Ontario Cities Map Quiz | 0 | - | 4.64 | 19,330 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,298 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,631 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,311 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,796 |
| Name a Valid African Country | 0 | - | 4.98 | 152,874 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,058 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,060 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,039 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,516 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,068 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,609 |
| Mexico Country Quiz | 0 | - | 4.49 | 71,954 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,308 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,183 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,461 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,883 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,359 |
| States of Brazil | 0 | - | 4.98 | 86,294 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,294 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,409 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,483 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 742,945 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,194 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,657 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,700 |
| Random U.S. City to State | 0 | - | 4.45 | 75,262 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,217 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,769 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,401 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,648 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,721 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,575 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,189 |
| New England States | 0 | - | 4.51 | 59,702 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,455 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,879 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,291 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,609 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,650 |
| U.S. States by Borders | 0 | - | 4.63 | 35,055 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,220 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,109 |
| Most Valuable Crops by U.S. State | 0 | - | 4.40 | 38,918 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,974 |
| Canadian Prime Ministers | 0 | - | 4.63 | 56,999 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,343 |
| Canadian Islands on the Map | 0 | - | 4.39 | 19,911 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,370 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,066 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,041 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,915 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,513 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,503 |
| Word Chain - France | 0 | - | 4.38 | 42,570 |
| Italian Foods | 0 | - | 4.30 | 72,142 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,641 |
| Name a Valid Asian Country | 0 | - | 4.98 | 119,999 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,394 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,045 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,017 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,265 |
| Countries that Beat Brazil | 0 | - | 4.49 | 67,846 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 31,892 |
| Cuba Country Quiz | 0 | - | 4.69 | 51,143 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,846 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,329 |
| Top U.S. Universities | 0 | - | 4.15 | 143,994 |
| Largest United States Airlines | 0 | - | 4.39 | 54,825 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,815 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 71,997 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.49 | 37,155 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,330 |
| U.S. States by Governor | 0 | - | 4.43 | 17,978 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,565 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,542 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,749 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,640 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,379 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,266 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,017 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.45 | 50,024 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,407 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,430 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,664 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,560 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,353 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,256 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,461 |
| 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 | 64,402 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,068 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,383 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,326 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,205 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,384 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,659 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,553 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 112,990 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,223 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,860 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,473 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,858 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,523 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,835 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,295 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 334,502 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,847 |
| U.S. Geography by Letter - C | 0 | - | 4.26 | 73,327 |
| U.S. Geography by Letter - A | 0 | - | 4.38 | 62,295 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,290 |
| U.S. Geography by Letter - T | 0 | - | 4.27 | 48,978 |
| U.S. Geography by Letter - P | 0 | - | 4.34 | 47,371 |
| U.S. Geography by Letter - M | 0 | - | 4.13 | 52,581 |
| U.S. Geography by Letter - L | 0 | - | 4.03 | 40,340 |
| U.S. Geography by Letter - G | 0 | - | 4.12 | 38,586 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 39,312 |
| 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 | 26,347 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.66 | 21,894 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,202 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,637 |
| American Foods | 0 | - | 3.66 | 39,271 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,784 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,340 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,926 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,148 |
