| US States Quiz | 0 | - | 5.00 | 16,758,243 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,899 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,186 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,790 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,798 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,190 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,435 |
| U.S. States By Population | 0 | - | 4.92 | 152,679 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,772 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,087 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,854 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,930 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,164 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,806 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 173,501 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,764 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,963 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,999 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,303 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,124 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,168 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,966 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,361 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,843 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,124 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,920 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,893 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,474 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,709 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 329,285 |
| Random U.S. City to State | 0 | - | 4.45 | 75,557 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,865 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,148 |
| Pixelated United States Map | 0 | - | 4.89 | 93,732 |
| US States with an Empty Map | 0 | - | 5.00 | 620,743 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,320 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,328 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,637 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,719 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,904 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,975 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 207,378 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,131 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,981 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,402 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,660 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,642 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,099 |
| States of Mexico | 0 | - | 4.95 | 174,243 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,230 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,665 |
| New England States | 0 | - | 4.51 | 59,736 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,592 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,933 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,509 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,778 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,759 |
| U.S. States by Borders | 0 | - | 4.63 | 35,159 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,329 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,711 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,061 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,922 |
| Random Capital to Country | 0 | - | 4.99 | 2,582,561 |
| Random Country to Capital | 0 | - | 4.98 | 914,059 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,665 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,951 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,697 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,579 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,149 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,619 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,665 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,533 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,198 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,254 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,551 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,344 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,083 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,809 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,426 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,697 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,737 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,085 |
| Movies by State | 0 | - | 4.27 | 40,478 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,353 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,257 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,711 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,205 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,858 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,477 |
| Flags of North and South America | 0 | - | 4.99 | 369,406 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,098 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,267 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 150,028 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,705 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,506 |
| United States Country Quiz | 0 | - | 4.43 | 100,919 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,114 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,756 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,700 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,683 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,481 |
| Flyover States | 0 | - | 4.52 | 29,436 |
| U.S. States With Double Letters | 0 | - | 4.54 | 23,987 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 75,940 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,352 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,528 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,116 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,307 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,023 |
| Word Scramble - U.S. Cities | 0 | - | 4.13 | 19,677 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,371 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,684 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 208,292 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,932 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,420 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,232 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 128,981 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,076 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,142 |
| Boroughs of New York City | 0 | - | 4.47 | 84,266 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,676 |
| The Only American Country ... | 0 | - | 4.92 | 121,082 |
| Belize Country Quiz | 0 | - | 4.85 | 20,857 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,093 |
| Regions of U.S. States | 0 | - | 4.37 | 43,595 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,127 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,145 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,976 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,517 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,353 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 28,801 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,231 |
| Musical Acts by State | 0 | - | 4.05 | 19,565 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,458 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,855 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,146 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,465 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,928 |
| Random European City to Country | 0 | - | 4.69 | 116,849 |
| Random Asian City to Country | 0 | - | 4.56 | 44,427 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,253 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,659 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,105 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,648 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,359 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,357 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,164 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,357 |
| Name a Valid African Country | 0 | - | 4.98 | 153,288 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,580 |
| Europe Map Quiz | 0 | - | 5.00 | 4,741,841 |
| Largest United States Airlines | 0 | - | 4.39 | 54,901 |
| States of Brazil | 0 | - | 4.97 | 86,877 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,282 |
| Most Valuable Crops by U.S. State | 0 | - | 4.40 | 38,990 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 17,877 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,611 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,607 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,715 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,945 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,131 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,915 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,761 |
| ALL California Cities | 0 | - | 4.37 | 42,915 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,417 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,802 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,065 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,964 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,172 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,344 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 81,126 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,463 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,465 |
| Canada Country Quiz | 0 | - | 4.55 | 131,979 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,219 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,808 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,415 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,993 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,606 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 73,703 |
| U.S. Geography by Letter - A | 0 | - | 4.38 | 62,662 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,656 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,329 |
| U.S. Geography by Letter - P | 0 | - | 4.36 | 47,766 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 52,923 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 40,757 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 38,894 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 39,683 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,441 |
| U.S. State Symbols | 0 | - | 4.38 | 24,273 |
| U.S. States along the Atlantic and Gulf Coast | 0 | - | 4.39 | 28,842 |
| U.S. States Without Individual Income Tax | 0 | - | 4.29 | 28,467 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 53,474 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 41,386 |
| Top 10 U.S. States Taller than Wide | 0 | - | 4.05 | 13,542 |
| Top 10 U.S. States Wider than Tall | 0 | - | 4.29 | 14,871 |
| U.S. Panhandles | 0 | - | 4.21 | 27,095 |
| Top 10 Happiest U.S. States | 0 | - | 4.34 | 19,747 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,641 |
| U.S. States with a Unique Last Letter | 0 | - | 4.17 | 21,590 |
