| Countries by Number of Books Published | 0 | - | 4.95 | 72,236 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,264 |
| Empires by Maps | 0 | - | 4.98 | 119,515 |
| WWII Figures by Picture | 0 | - | 4.89 | 64,380 |
| Merged Company Logos #1 | 0 | - | 4.90 | 105,992 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,506 |
| All Country Flags of the World | 0 | - | 5.00 | 3,633,786 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,129 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,554 |
| Play-Doh People from History | 0 | - | 4.99 | 94,355 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,676 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,301 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,531,851 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,090,082 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 731,653 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,184 |
| Flags with Crescents | 0 | - | 4.98 | 168,564 |
| Country Flag Trivia | 0 | - | 4.81 | 56,506 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,088 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,996 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,743 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,646 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,897 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,779 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,438 |
| Real vs. Fake Flags | 0 | - | 4.98 | 123,381 |
| A-Z Cities by Pictures | 0 | - | 4.56 | 43,700 |
| National Football Team Logos | 0 | - | 4.85 | 179,608 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,471 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,585 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,684 |
| Countries with NO Military | 0 | - | 4.97 | 61,690 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,551 |
| NATO Countries | 0 | - | 4.98 | 278,346 |
| EU Countries Quiz | 0 | - | 4.99 | 271,916 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,190 |
| Books of the Protestant Bible | 0 | - | 4.89 | 208,859 |
| Years in History by Picture | 0 | - | 4.44 | 35,349 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,567 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,163 |
| Books by Country Quiz | 0 | - | 4.30 | 32,203 |
| 7 Deadly Sins | 0 | - | 4.88 | 398,009 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,154 |
| The Bible by Picture | 0 | - | 4.23 | 20,074 |
| Flags to Languages | 0 | - | 4.95 | 173,094 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,247 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,850 |
| Coldest World Capitals | 0 | - | 4.95 | 133,241 |
| World Currency Quiz | 0 | - | 4.92 | 300,821 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,092 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,849 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,167 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,485 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 130,154 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,396 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,579 |
| Buddhist Countries | 0 | - | 4.96 | 143,469 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,094,207 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,905 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,673 |
| Fruits by Picture | 0 | - | 4.20 | 806,067 |
| Old Movies by Picture | 0 | - | 4.51 | 24,983 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,853 |
| Name that Object #1 | 0 | - | 3.57 | 96,417 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,138 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,241 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,630 |
| Geography by Picture - B | 0 | - | 4.42 | 55,512 |
| Geography by Picture - H | 0 | - | 4.50 | 58,134 |
| Geography by Picture - N | 0 | - | 4.45 | 42,122 |
| Geography by Picture - R | 0 | - | 4.56 | 40,950 |
| Geography by Picture - T | 0 | - | 4.54 | 57,759 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,733 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 535,902 |
| Random Logos Quiz | 0 | - | 4.31 | 207,780 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 114,267 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,281 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,893 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,785 |
| Pictures by Letter - D | 0 | - | 4.13 | 37,460 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,675 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,656 |
| Military History Vocabulary | 0 | - | 4.91 | 66,897 |
| Battle to Country | 0 | - | 4.91 | 52,973 |
| Monarchies of Europe | 0 | - | 4.90 | 97,745 |
| Monarchies of Asia | 0 | - | 4.97 | 70,862 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,094 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,558 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,790 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,108 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,856 |
| Richest Island Countries | 0 | - | 4.84 | 100,036 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,033 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,937 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 268,929 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 103,760 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,137 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,908 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,172 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,726 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,654 |
| Orthodox Countries | 0 | - | 4.92 | 131,006 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,872 |
| The Sun Quiz | 0 | - | 4.93 | 34,370 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,806 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 86,993 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,392 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,698 |
| Countries that Start with A | 0 | - | 4.98 | 2,154,948 |
| Countries that Start with B | 0 | - | 4.95 | 2,287,094 |
| Countries that Start with C | 0 | - | 4.96 | 1,816,130 |
| Countries that Start with D | 0 | - | 4.96 | 705,526 |
| Countries that Start with E | 0 | - | 4.95 | 1,372,313 |
| Countries that Start with G | 0 | - | 4.97 | 1,497,840 |
| Countries that Start with H | 0 | - | 4.96 | 601,277 |
| Countries that Start with I | 0 | - | 4.92 | 1,284,139 |
| Countries that Start with J | 0 | - | 4.98 | 599,256 |
| Countries that Start with K | 0 | - | 4.97 | 812,404 |
| Countries that Start with L | 0 | - | 4.98 | 1,086,603 |
| Countries that Start with N | 0 | - | 4.93 | 1,113,625 |
| Countries that Start with P | 0 | - | 4.94 | 1,212,414 |
| Countries that Start with S | 0 | - | 4.98 | 1,749,677 |
| Countries that Start with T | 0 | - | 4.90 | 1,007,036 |
| Countries that Start with U | 0 | - | 4.97 | 902,208 |
| Countries that Start with V | 0 | - | 4.98 | 607,370 |
| Countries that Start with F | 0 | - | 4.83 | 614,910 |
| Countries that Start with M | 0 | - | 4.97 | 1,377,474 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,191 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,643 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,728 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,299 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 335,954 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,953 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.89 | 125,944 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.86 | 93,796 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,866 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,949 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,322 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,183 |
| Random Category Elimination - Countries | 0 | - | 4.99 | 430,549 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,410 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,401 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,666 |
| Name that Bug | 0 | - | 4.12 | 45,509 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,266 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,803 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,559 |
| Elements by Picture | 0 | - | 4.27 | 69,759 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,239 |
| Islands by Picture | 0 | - | 4.29 | 106,437 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,176 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,217 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,273 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,030 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,389 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,455 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,084 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,484 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,898 |
| International Footballers by Picture | 0 | - | 4.50 | 55,196 |
| Name that Historical Figure #2 | 0 | - | 4.41 | 283,758 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,211 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,591 |
| Geography by Picture - A | 0 | - | 4.39 | 60,146 |
| Geography by Picture - D | 0 | - | 4.15 | 45,570 |
| Geography by Picture - F | 0 | - | 4.31 | 50,906 |
| Geography by Picture - G | 0 | - | 4.38 | 47,877 |
| Geography by Picture - J | 0 | - | 4.16 | 38,393 |
| Geography by Picture - K | 0 | - | 4.29 | 33,066 |
| Geography by Picture - C | 0 | - | 4.31 | 56,999 |
| Geography by Picture - L | 0 | - | 4.37 | 58,859 |
| Geography by Picture - M | 0 | - | 4.14 | 40,395 |
| Geography by Picture - P | 0 | - | 4.24 | 42,368 |
| Geography by Picture - S | 0 | - | 4.38 | 46,981 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,463 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,049 |
| Flag Maths | 0 | - | 4.64 | 57,715 |
| Satellite Images #1 | 0 | - | 4.46 | 129,202 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,160 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,793 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,800 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,894 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,693 |
| Soccer Team Logos | 0 | - | 4.26 | 372,743 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,412,598 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 178,397 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 260,706 |
| Video Game Logos Quiz | 0 | - | 4.40 | 183,360 |
| Movie Logos | 0 | - | 4.33 | 237,231 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,285 |
| Brand Logos That Start with A | 0 | - | 4.52 | 69,832 |
| History by Picture - A | 0 | - | 4.25 | 45,662 |
| History by Picture - B | 0 | - | 4.40 | 48,811 |
| History by Picture - C | 0 | - | 4.36 | 54,322 |
| History by Picture - F | 0 | - | 4.35 | 37,773 |
| History by Picture - G | 0 | - | 4.40 | 42,031 |
| History by Picture - D | 0 | - | 4.29 | 44,195 |
| History by Picture - E | 0 | - | 4.27 | 43,807 |
| History by Picture - H | 0 | - | 4.37 | 36,698 |
| History by Picture - K | 0 | - | 4.35 | 33,262 |