| Countries Bordering Brazil | 0 | - | 4.96 | 130,983 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,260 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,279 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,944 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,059 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 234,622 |
| States of Brazil | 0 | - | 4.98 | 86,260 |
| Middle East A-Z | 0 | - | 4.47 | 45,754 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,712 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,854 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,282 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,175 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,512 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,061 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,179 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,459 |
| Brazil Country Quiz | 0 | - | 4.52 | 101,028 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,359 |
| European Geography A-Z | 0 | - | 4.28 | 48,969 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 128,488 |
| Africa A-Z | 0 | - | 4.57 | 46,349 |
| Countries that Beat Brazil | 0 | - | 4.49 | 67,824 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,962 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,082 |
| France A-Z | 0 | - | 4.16 | 38,044 |
| Switzerland A-Z | 0 | - | 4.45 | 25,496 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 33,693 |
| U.S. Geography by Letter - C | 0 | - | 4.26 | 73,319 |
| U.S. Geography by Letter - A | 0 | - | 4.38 | 62,280 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,284 |
| U.S. Geography by Letter - T | 0 | - | 4.27 | 48,970 |
| U.S. Geography by Letter - P | 0 | - | 4.34 | 47,361 |
| U.S. Geography by Letter - M | 0 | - | 4.13 | 52,576 |
| U.S. Geography by Letter - L | 0 | - | 4.03 | 40,328 |
| U.S. Geography by Letter - G | 0 | - | 4.12 | 38,578 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 39,302 |
| California Cities A-Z | 0 | - | 4.06 | 16,975 |
| Hawaii A-Z | 0 | - | 4.28 | 13,403 |
| Texas A-Z | 0 | - | 4.18 | 16,300 |
| Pennsylvania A-Z | 0 | - | 4.11 | 7,512 |
| U.S. History A-Z #1 | 0 | - | 4.39 | 29,246 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,328 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,838 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,774 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,645 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,168 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,797 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,629 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,593 |
| European Geography By Letter - V | 0 | - | 4.43 | 91,996 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,254 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,560 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,801 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,977 |
| London A-Z | 0 | - | 4.10 | 40,626 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,785 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,359 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,123 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,533 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,029 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,667 |
| Countries that Start with A | 0 | - | 4.97 | 2,145,292 |
| Countries that Start with B | 0 | - | 4.95 | 2,278,531 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,214 |
| Countries that Start with D | 0 | - | 4.96 | 700,799 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,639 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,852 |
| Countries that Start with H | 0 | - | 4.96 | 597,321 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,525 |
| Countries that Start with J | 0 | - | 4.98 | 595,389 |
| Countries that Start with K | 0 | - | 4.96 | 808,841 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,222 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,080 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,906 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,589 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,665 |
| Countries that Start with U | 0 | - | 4.97 | 899,524 |
| Countries that Start with V | 0 | - | 4.98 | 604,707 |
| Countries that Start with F | 0 | - | 4.83 | 611,678 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,576 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,660 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,820 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,329 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,627 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,287 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,084 |
| African Geography A-Z | 0 | - | 4.33 | 21,412 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,337 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,221 |
| US States Quiz | 0 | - | 5.00 | 16,685,034 |
| Canada A-Z | 0 | - | 4.73 | 32,634 |
| A-Z Cities by Pictures | 0 | - | 4.56 | 43,500 |
| U.S. Geography by Letter - N | 0 | - | 3.79 | 52,117 |
| U.S. Geography by Letter - E | 0 | - | 3.73 | 48,173 |
| U.S. Geography by Letter - F | 0 | - | 3.86 | 44,429 |
| U.S. Geography by Letter - O | 0 | - | 3.43 | 33,779 |
| U.S. Geography by Letter - R | 0 | - | 4.15 | 30,247 |
| States of Mexico | 0 | - | 4.95 | 173,157 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,347 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,074 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,828 |
| South America A-Z | 0 | - | 4.13 | 10,835 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,053 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,352 |
| Chile Country Quiz | 0 | - | 4.75 | 39,699 |
| Peru Country Quiz | 0 | - | 4.54 | 48,264 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 742,870 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,675 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,160 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,160 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,404 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,846 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,223 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,440 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,116 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,892 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,272 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,481 |
| Asian Geography By Letter - S | 0 | - | 4.18 | 55,897 |
| Asian Geography by Letter - D | 0 | - | 4.27 | 51,655 |
| Asian Geography by Letter - G | 0 | - | 4.35 | 50,960 |
| Asian Geography by Letter - I | 0 | - | 4.36 | 67,475 |
| Asian Geography by Letter - C | 0 | - | 4.32 | 64,457 |
| Asian Geography by Letter - N | 0 | - | 4.33 | 49,969 |
| Asian Geography By Letter - J | 0 | - | 4.25 | 34,459 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,396 |
| Turkey A-Z | 0 | - | 4.04 | 11,699 |
| The Bible A-Z | 0 | - | 4.29 | 59,193 |
| One Country By Letter By Continent | 0 | - | 5.00 | 121,460 |
| Capitals A-Z #2 | 0 | - | 4.45 | 26,638 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,154 |
| 17th Century A-Z | 0 | - | 4.78 | 34,151 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 124,088 |
| Which South American Country? | 0 | - | 4.69 | 51,701 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,780 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,311 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,487 |
| US States with an Empty Map | 0 | - | 5.00 | 618,332 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,428 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,586 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,824 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,324 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,290 |
| Ecuador Country Quiz | 0 | - | 4.60 | 31,592 |
| Rivers of the United States | 0 | - | 4.93 | 65,444 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,341 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,227 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,387 |
| People on Money - United States | 0 | - | 4.31 | 63,199 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,233 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,511 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,494 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,800 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,575 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,968 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,519 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,610 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,116 |
| Asian Geography By Letter - R | 0 | - | 4.34 | 27,538 |
| Countries that Start with R | 0 | - | 4.43 | 443,261 |
| Countries Bordering "U" Countries | 0 | - | 4.81 | 24,032 |
| World Cities A-Z by Clue #1 | 0 | - | 4.54 | 65,261 |
| World Cities A-Z by Clue #2 | 0 | - | 4.44 | 56,836 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,380 |
| U.S. Geography by Letter - W | 0 | - | 3.83 | 22,845 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,903 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,700 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,516,853 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,097 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,333 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,499 |
| Famous Germans | 0 | - | 4.50 | 54,574 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,273 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 276,984 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,303,876 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,128 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,153 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,696 |
| Australian Capitals | 0 | - | 4.92 | 62,586 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,607 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| Mexico Country Quiz | 0 | - | 4.49 | 71,941 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,306 |
| History of Mexico | 0 | - | 4.58 | 15,223 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,074 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,214 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,717 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,186 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,379,266 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,663,158 |
| Canadian Prime Ministers | 0 | - | 4.63 | 56,991 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,540 |
| Official European Union Languages | 0 | - | 4.97 | 236,397 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,622 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,940 |
| Russian History A-Z | 0 | - | 4.38 | 30,554 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,438,529 |
| Asia Map Quiz | 0 | - | 4.99 | 906,182 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,487 |
| A Quiz About Islam | 0 | - | 4.31 | 48,181 |
