| Countries Bordering Brazil | 0 | - | 4.96 | 132,208 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,864 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,657 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,924 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,803 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,516 |
| States of Brazil | 0 | - | 4.97 | 89,581 |
| Middle East A-Z | 0 | - | 4.47 | 46,231 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,976 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,581 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,972 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,333 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,875 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,294 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 43,890 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,868 |
| Brazil Country Quiz | 0 | - | 4.52 | 102,321 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,823 |
| European Geography A-Z | 0 | - | 4.29 | 49,469 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 155,210 |
| Countries that Beat Brazil | 0 | - | 4.49 | 69,179 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,524 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,823 |
| France A-Z | 0 | - | 4.16 | 38,325 |
| Switzerland A-Z | 0 | - | 4.45 | 25,756 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,956 |
| Africa A-Z | 0 | - | 4.57 | 46,759 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,471 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,500 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,479 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,186 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,379 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,600 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,503 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,661 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 36,832 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,578 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,740 |
| California Cities A-Z | 0 | - | 4.06 | 17,430 |
| Hawaii A-Z | 0 | - | 4.28 | 13,484 |
| Texas A-Z | 0 | - | 4.19 | 16,435 |
| Pennsylvania A-Z | 0 | - | 4.11 | 7,588 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 30,487 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,876 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,178 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,481 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,158 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,802 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,201 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,917 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,433 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,648 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,370 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,265 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 87,973 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,231 |
| London A-Z | 0 | - | 4.10 | 40,873 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,403 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 66,016 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,619 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,155 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,614 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,273 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,245 |
| Countries that Start with A | 0 | - | 4.98 | 2,174,420 |
| Countries that Start with B | 0 | - | 4.95 | 2,305,303 |
| Countries that Start with C | 0 | - | 4.96 | 1,830,529 |
| Countries that Start with D | 0 | - | 4.96 | 715,793 |
| Countries that Start with E | 0 | - | 4.95 | 1,384,335 |
| Countries that Start with G | 0 | - | 4.97 | 1,510,737 |
| Countries that Start with H | 0 | - | 4.96 | 609,118 |
| Countries that Start with I | 0 | - | 4.92 | 1,293,987 |
| Countries that Start with J | 0 | - | 4.98 | 606,513 |
| Countries that Start with K | 0 | - | 4.97 | 820,304 |
| Countries that Start with L | 0 | - | 4.98 | 1,096,211 |
| Countries that Start with N | 0 | - | 4.93 | 1,123,267 |
| Countries that Start with P | 0 | - | 4.94 | 1,221,473 |
| Countries that Start with S | 0 | - | 4.98 | 1,762,343 |
| Countries that Start with T | 0 | - | 4.90 | 1,014,452 |
| Countries that Start with U | 0 | - | 4.97 | 908,147 |
| Countries that Start with V | 0 | - | 4.98 | 611,740 |
| Countries that Start with F | 0 | - | 4.83 | 620,960 |
| Countries that Start with M | 0 | - | 4.97 | 1,387,613 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,070 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,599 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,878 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,866 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,895 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,442 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,754 |
| US States Quiz | 0 | - | 5.00 | 16,984,528 |
| Canada A-Z | 0 | - | 4.73 | 32,953 |
| African Geography A-Z | 0 | - | 4.33 | 21,530 |
| A-Z Cities by Pictures | 0 | - | 4.56 | 44,085 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 53,049 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 49,060 |
| U.S. Geography by Letter - F | 0 | - | 3.84 | 45,327 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,785 |
| States of Mexico | 0 | - | 4.96 | 178,030 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,800 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,340 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,430 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,727 |
| South America A-Z | 0 | - | 4.15 | 10,942 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,783 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,542 |
| Chile Country Quiz | 0 | - | 4.75 | 40,264 |
| Ecuador Country Quiz | 0 | - | 4.60 | 31,997 |
| Peru Country Quiz | 0 | - | 4.54 | 48,893 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,476 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,122 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,707 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,866 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,181 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,967 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,680 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,365 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,989 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,405 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,456 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,747 |
| Asian Geography By Letter - S | 0 | - | 4.17 | 56,213 |
| Asian Geography by Letter - D | 0 | - | 4.27 | 52,138 |
| Asian Geography by Letter - G | 0 | - | 4.36 | 51,382 |
| Asian Geography by Letter - I | 0 | - | 4.37 | 68,028 |
| Asian Geography by Letter - C | 0 | - | 4.32 | 64,953 |
| Asian Geography by Letter - N | 0 | - | 4.34 | 50,422 |
| Asian Geography By Letter - J | 0 | - | 4.27 | 34,910 |
| Turkey A-Z | 0 | - | 4.04 | 11,921 |
| The Bible A-Z | 0 | - | 4.29 | 59,966 |
| One Country By Letter By Continent | 0 | - | 5.00 | 125,447 |
| Capitals A-Z #2 | 0 | - | 4.45 | 26,931 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,690 |
| 17th Century A-Z | 0 | - | 4.78 | 34,742 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,345 |
| Which South American Country? | 0 | - | 4.69 | 52,092 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,374 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,124 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,215 |
| US States with an Empty Map | 0 | - | 5.00 | 628,230 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,735 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,977 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,098 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,326 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,869 |
| One Capital by Letter by Continent | 0 | - | 4.99 | 17,535 |
| Rivers of the United States | 0 | - | 4.93 | 66,622 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,656 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,059 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,556 |
| People on Money - United States | 0 | - | 4.31 | 63,430 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,517 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,428 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,052 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,796 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,416 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,763 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,179 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,412 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,267 |
| Russian History A-Z | 0 | - | 4.35 | 32,178 |
| Asian Geography By Letter - R | 0 | - | 4.35 | 28,214 |
| Countries that Start with R | 0 | - | 4.43 | 450,025 |
| Countries Bordering "U" Countries | 0 | - | 4.83 | 24,831 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 76,119 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 60,138 |
| U.S. Geography by Letter - W | 0 | - | 3.86 | 23,697 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,962 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,500 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,554,398 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,334 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,492 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,122 |
| Europe Map Quiz | 0 | - | 5.00 | 4,785,214 |
| Famous Germans | 0 | - | 4.50 | 55,760 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,318 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,553 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,246 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,324,767 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,545 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,808 |
| Australian Capitals | 0 | - | 4.92 | 62,824 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,849 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,794 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,719 |
| History of Mexico | 0 | - | 4.52 | 15,360 |
| Word Chain - South America | 0 | - | 4.51 | 24,000 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,617 |
| United States Map Quiz | 0 | - | 4.98 | 4,170,299 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,132 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,528 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,397,853 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,692,032 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,885 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,676 |
| Official European Union Languages | 0 | - | 4.97 | 239,674 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,569 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,630 |
| Famous French People | 0 | - | 4.07 | 36,069 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,059 |
