| US States Quiz | 0 | - | 5.00 | 16,917,164 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,797 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,133 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,710 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,668 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,330 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,640 |
| U.S. States By Population | 0 | - | 4.92 | 153,733 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,706 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,593 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,498 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,331 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,789 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,972 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,414 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,307 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,185 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,814 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,936 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,605 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,367 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,837 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,499 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,196 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,015 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,867 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,814 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,105 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,967 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 333,092 |
| Random U.S. City to State | 0 | - | 4.45 | 76,518 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,937 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,989 |
| Pixelated United States Map | 0 | - | 4.88 | 94,467 |
| US States with an Empty Map | 0 | - | 5.00 | 625,963 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,913 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,288 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,978 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,272 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,684 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,232 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,911 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,456 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,296 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,932 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,333 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,995 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,244 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,064 |
| States of Mexico | 0 | - | 4.96 | 176,759 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,359 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,492 |
| New England States | 0 | - | 4.51 | 59,834 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,892 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,037 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 82,913 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,114 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 41,004 |
| U.S. States by Borders | 0 | - | 4.61 | 35,376 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,542 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,143 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,273 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,204 |
| Random Capital to Country | 0 | - | 4.99 | 2,594,618 |
| Random Country to Capital | 0 | - | 4.98 | 922,743 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 114,138 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,076 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,803 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,721 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,446 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,594 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,667 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,846 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,922 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 113,982 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,324 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,894 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,535 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,242 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,909 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,526 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,793 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 52,989 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,703 |
| Movies by State | 0 | - | 4.27 | 40,565 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,284 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,950 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,411 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,662 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,444 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,693 |
| Flags of North and South America | 0 | - | 4.99 | 374,278 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,421 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,573 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 150,832 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,021 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,614 |
| United States Country Quiz | 0 | - | 4.43 | 101,715 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,215 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,058 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,954 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,918 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,539 |
| Flyover States | 0 | - | 4.52 | 29,538 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,170 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.28 | 76,255 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,575 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,671 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,482 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,410 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,790 |
| Word Scramble - U.S. Cities | 0 | - | 4.13 | 19,834 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,860 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,528 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,820 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,590 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,007 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,393 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 129,484 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,182 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,218 |
| Boroughs of New York City | 0 | - | 4.47 | 84,708 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,545 |
| The Only American Country ... | 0 | - | 4.92 | 121,815 |
| Belize Country Quiz | 0 | - | 4.85 | 21,012 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,612 |
| Regions of U.S. States | 0 | - | 4.37 | 43,983 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,606 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,391 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,262 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,598 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,399 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,874 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,321 |
| Musical Acts by State | 0 | - | 4.05 | 19,592 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,902 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,619 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,340 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,595 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,080 |
| Random European City to Country | 0 | - | 4.69 | 117,879 |
| Random Asian City to Country | 0 | - | 4.56 | 44,560 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,459 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,797 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,557 |
| Random World Capitals on a Map | 0 | - | 4.93 | 134,878 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,413 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,380 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,013 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,217 |
| Name a Valid African Country | 0 | - | 4.98 | 154,353 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,236 |
| Europe Map Quiz | 0 | - | 5.00 | 4,770,896 |
| Largest United States Airlines | 0 | - | 4.39 | 55,074 |
| States of Brazil | 0 | - | 4.97 | 88,580 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,171 |
| Most Valuable Crops by U.S. State | 0 | - | 4.40 | 39,135 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 18,035 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,828 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,548 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,554 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,067 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,039 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,456 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,489 |
| ALL California Cities | 0 | - | 4.37 | 43,101 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,467 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,770 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,654 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,116 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,470 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,366 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,427 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,725 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,802 |
| Canada Country Quiz | 0 | - | 4.54 | 132,663 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,292 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,351 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,613 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,182 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,851 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,216 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,238 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,214 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,908 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,055 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,418 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,252 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,423 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,293 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,514 |
| U.S. State Symbols | 0 | - | 4.38 | 24,321 |
| U.S. States along the Atlantic and Gulf Coast | 0 | - | 4.39 | 28,871 |
| U.S. States Without Individual Income Tax | 0 | - | 4.29 | 28,528 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,535 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,073 |
| Top 10 U.S. States Taller than Wide | 0 | - | 4.05 | 13,596 |
| Top 10 U.S. States Wider than Tall | 0 | - | 4.29 | 14,936 |
| U.S. Panhandles | 0 | - | 4.21 | 27,187 |
| Top 10 Happiest U.S. States | 0 | - | 4.34 | 19,792 |
