| Southernmost Countries A-Z | 0 | - | 4.94 | 153,019 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,478 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,702 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,345 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,919 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,446 |
| Africa A-Z | 0 | - | 4.57 | 46,499 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,619 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,174 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,174 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,278 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,754 |
| Middle East A-Z | 0 | - | 4.47 | 45,915 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,389 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,050 |
| Australian Capitals | 0 | - | 4.92 | 62,657 |
| Canada A-Z | 0 | - | 4.73 | 32,720 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,438 |
| European Geography A-Z | 0 | - | 4.29 | 49,112 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 129,465 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 67,352 |
| Australia True or False | 0 | - | 4.87 | 56,670 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,682 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,135 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,110 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,991 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,444 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,326 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,031 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,807 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,441 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,609 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,799 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,102 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,315 |
| France A-Z | 0 | - | 4.16 | 38,113 |
| Switzerland A-Z | 0 | - | 4.45 | 25,578 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,959 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,521 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,263 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,712 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,186 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,839 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,237 |
| African Geography A-Z | 0 | - | 4.33 | 21,448 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,825 |
| Countries that Start with A | 0 | - | 4.98 | 2,153,909 |
| Countries that Start with B | 0 | - | 4.95 | 2,286,181 |
| Countries that Start with C | 0 | - | 4.96 | 1,815,398 |
| Countries that Start with D | 0 | - | 4.96 | 704,998 |
| Countries that Start with E | 0 | - | 4.95 | 1,371,686 |
| Countries that Start with G | 0 | - | 4.97 | 1,497,204 |
| Countries that Start with H | 0 | - | 4.96 | 600,843 |
| Countries that Start with I | 0 | - | 4.92 | 1,283,656 |
| Countries that Start with J | 0 | - | 4.98 | 598,849 |
| Countries that Start with K | 0 | - | 4.97 | 812,024 |
| Countries that Start with L | 0 | - | 4.98 | 1,086,142 |
| Countries that Start with N | 0 | - | 4.93 | 1,113,111 |
| Countries that Start with P | 0 | - | 4.94 | 1,211,950 |
| Countries that Start with S | 0 | - | 4.98 | 1,748,990 |
| Countries that Start with T | 0 | - | 4.90 | 1,006,676 |
| Countries that Start with U | 0 | - | 4.97 | 901,910 |
| Countries that Start with V | 0 | - | 4.98 | 607,112 |
| Countries that Start with F | 0 | - | 4.83 | 614,571 |
| Countries that Start with M | 0 | - | 4.97 | 1,376,954 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,124 |
| Australia Country Quiz | 0 | - | 4.43 | 69,436 |
| Regions of New Zealand | 0 | - | 4.85 | 28,401 |
| World Cities A-Z by Clue #2 | 0 | - | 4.40 | 58,577 |
| A-Z Cities by Pictures | 0 | - | 4.56 | 43,677 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,974 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,466 |
| South America A-Z | 0 | - | 4.13 | 10,873 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,437 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,856 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,104 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,723 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,676 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,360 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,089 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,429 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,650 |
| Asian Geography By Letter - S | 0 | - | 4.16 | 55,989 |
| Asian Geography by Letter - D | 0 | - | 4.27 | 51,803 |
| Asian Geography by Letter - G | 0 | - | 4.35 | 51,091 |
| Asian Geography by Letter - I | 0 | - | 4.36 | 67,627 |
| Asian Geography by Letter - C | 0 | - | 4.32 | 64,604 |
| Asian Geography by Letter - N | 0 | - | 4.33 | 50,107 |
| Asian Geography By Letter - J | 0 | - | 4.25 | 34,590 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,602 |
| The Bible A-Z | 0 | - | 4.29 | 59,588 |
| Capitals A-Z #2 | 0 | - | 4.45 | 26,703 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,327 |
| 17th Century A-Z | 0 | - | 4.78 | 34,233 |
| Famous Australians by Description | 0 | - | 4.23 | 27,789 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,509 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,774 |
| One Country By Letter By Continent | 0 | - | 5.00 | 122,686 |
| American Football A-Z | 0 | - | 4.26 | 14,489 |
| MLB Baseball A-Z #2 | 0 | - | 4.11 | 17,051 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,394 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 73,739 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 62,709 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,702 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,385 |
| U.S. Geography by Letter - P | 0 | - | 4.36 | 47,818 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 52,949 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 40,802 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 38,942 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 39,743 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,081 |
| London A-Z | 0 | - | 4.10 | 40,697 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,159 |
| Asian Geography By Letter - R | 0 | - | 4.34 | 27,730 |
| Military History A-Z | 0 | - | 4.20 | 21,094 |
| Countries Bordering "U" Countries | 0 | - | 4.82 | 24,282 |
| Human Body A-Z | 0 | - | 4.51 | 128,874 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,024 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.68 | 57,274 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 47,869 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,938 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,920 |
| Famous Germans | 0 | - | 4.50 | 54,834 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,883 |
| Turkey A-Z | 0 | - | 4.04 | 11,791 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,310,313 |
| Countries that Start with R | 0 | - | 4.43 | 445,377 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,634 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,587 |
| Word Chain - Australia | 0 | - | 4.37 | 38,074 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 52,496 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 48,492 |
| U.S. Geography by Letter - F | 0 | - | 3.87 | 44,755 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,181 |
| U.S. Geography by Letter - R | 0 | - | 4.18 | 30,613 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,851 |
| Official European Union Languages | 0 | - | 4.97 | 237,660 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,313 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,559 |
| Russian History A-Z | 0 | - | 4.38 | 31,405 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,920 |
| Asia Map Quiz | 0 | - | 4.99 | 910,953 |
| A Quiz About Islam | 0 | - | 4.31 | 48,328 |
| Countries That Don't Recognize Israel | 0 | - | 4.63 | 34,653 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,415 |
| Basketball A-Z | 0 | - | 3.87 | 22,662 |
| MLB Baseball A-Z #1 | 0 | - | 4.00 | 23,063 |
| Mountains A-Z | 0 | - | 3.82 | 10,907 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,174 |
| Countries of Africa | 0 | - | 5.00 | 2,521,435 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,259 |
| African East Coast | 0 | - | 4.96 | 95,519 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,358 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,015 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,204 |
| Australia Map Quiz | 0 | - | 4.94 | 343,267 |
| Samoa Country Quiz | 0 | - | 4.80 | 20,720 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,365 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,459 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 745,194 |
| California Cities A-Z | 0 | - | 4.06 | 17,117 |
| Hawaii A-Z | 0 | - | 4.28 | 13,425 |
| Texas A-Z | 0 | - | 4.18 | 16,338 |
| Pennsylvania A-Z | 0 | - | 4.11 | 7,532 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 29,784 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,083 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,466 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,933 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,227 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,746 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,312 |
| The Only European Country ... | 0 | - | 4.91 | 215,142 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,321 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,667 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,191 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,120 |
| Japanese Companies | 0 | - | 4.28 | 34,146 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,376 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,398 |
| Countries with NO Military | 0 | - | 4.97 | 61,603 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 89,050 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,433 |
| Monarchies of the World | 0 | - | 4.94 | 167,419 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 112,090 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 111,308 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 113,829 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 74,856 |
| Disney Animated Characters | 0 | - | 4.88 | 600,280 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,177 |
| Fast Math - Addition | 0 | - | 4.87 | 521,410 |
| NATO Countries | 0 | - | 4.98 | 278,092 |
| EU Countries Quiz | 0 | - | 4.99 | 271,621 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,024 |
| 7 Deadly Sins | 0 | - | 4.88 | 397,692 |
| Books of the Protestant Bible | 0 | - | 4.89 | 208,680 |
| Majority Muslim Countries | 0 | - | 4.98 | 371,869 |
| Astronomy Quiz | 0 | - | 4.90 | 82,117 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 65,386 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,037 |
| Best Selling Artists by Letter Quiz | 0 | - | 4.04 | 43,283 |
