| Pixelated United States Map | 0 | - | 4.87 | 94,107 |
| US States Quiz | 0 | - | 5.00 | 16,839,764 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,823 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,364 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,248 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,361 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,817 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,114 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,673 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,257 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,398 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,554 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,576 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,673 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,206 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,239 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,749 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,016 |
| U.S. States By Population | 0 | - | 4.92 | 153,046 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,238 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,345 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,168 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,122 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,494 |
| US States with an Empty Map | 0 | - | 5.00 | 623,516 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,638 |
| Flags of North and South America | 0 | - | 4.99 | 372,169 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,121 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,186 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,610 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,431 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,622 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,353 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,783 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,951 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,506 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,517 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,445 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,844 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,841 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,702 |
| States of Mexico | 0 | - | 4.95 | 175,635 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,556 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,668 |
| Africa Map Quiz | 0 | - | 5.00 | 2,115,265 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,404 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,468 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,563 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,161 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,510 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,089 |
| United States Country Quiz | 0 | - | 4.43 | 101,364 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,833 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,272 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,068 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,907 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,334 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,810 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 746,388 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 208,919 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,063 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,933 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,836 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,308 |
| New England States | 0 | - | 4.51 | 59,785 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,751 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,988 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,719 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,931 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,879 |
| U.S. States by Borders | 0 | - | 4.61 | 35,268 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,441 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,973 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,185 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,316 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,724 |
| Countries of Africa | 0 | - | 5.00 | 2,531,432 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,659 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,674 |
| Random African Flag to Country | 0 | - | 4.88 | 74,714 |
| United States Map Quiz | 0 | - | 4.98 | 4,154,699 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,420 |
| Washington State by Picture | 0 | - | 4.26 | 7,725 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,956 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,862 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,722 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,442 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,157 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,026 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,756 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,732 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,859 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,471 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,737 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,424 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,292 |
| African-American Historical Figures | 0 | - | 4.18 | 17,190 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,901 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,727 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,436 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,056 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,125 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,249 |
| African Island Countries | 0 | - | 4.96 | 101,474 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,292 |
| Belize Country Quiz | 0 | - | 4.85 | 20,943 |
| Top U.S. Universities | 0 | - | 4.15 | 144,895 |
| Largest United States Airlines | 0 | - | 4.39 | 54,999 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,670 |
| U.S. States by Governor | 0 | - | 4.43 | 18,046 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,676 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,138 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,506 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,853 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,654 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,826 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,240,776 |
| Flags of Asia Quiz | 0 | - | 4.99 | 611,791 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,692 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,019 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,013 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,009 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,690 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 53,454 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,281 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,063 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,239 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,040 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,892 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 42,027 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,608 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,331 |
| American Founding Fathers | 0 | - | 4.42 | 23,205 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,381 |
| California Groups of Things | 0 | - | 4.25 | 45,437 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,251 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,921 |
| New York Groups of Things | 0 | - | 4.37 | 63,261 |
| People on Money - United States | 0 | - | 4.31 | 63,326 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,418 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,004 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,802 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,508 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 53,973 |
| Flyover States | 0 | - | 4.52 | 29,484 |
| U.S. States With Double Letters | 0 | - | 4.54 | 24,086 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 76,086 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,322 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,083 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,486 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,913 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,967 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,483 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,604 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,292 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,701 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,036 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,266 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,486 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,709 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,676 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,684 |
| The Only African Country ... | 0 | - | 4.99 | 128,978 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,074 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,034 |
| Flags of Oceania | 0 | - | 5.00 | 258,356 |
| The Only American Country ... | 0 | - | 4.92 | 121,442 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,971 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,379 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,231 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,362 |
| Names of Generations | 0 | - | 4.10 | 44,388 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,793 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,049 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,840 |
| Regions of U.S. States | 0 | - | 4.37 | 43,811 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,376 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,555 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,838 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,273 |
| Movies by State | 0 | - | 4.27 | 40,528 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,278 |
| Canada Country Quiz | 0 | - | 4.54 | 132,356 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 124,092 |
| Canada A-Z | 0 | - | 4.73 | 32,786 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,991 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,550 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,034 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,431 |
| Name a Valid African Country | 0 | - | 4.98 | 153,832 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,740 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,025 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,417 |
| D.R. Congo Country Quiz | 0 | - | 4.87 | 39,298 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,001 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,353 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,703 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,922 |
| States of Brazil | 0 | - | 4.97 | 87,713 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,191 |
