| Countries by Number of Books Published | 0 | - | 4.95 | 72,353 |
| Monarchies of the World | 0 | - | 4.94 | 167,905 |
| Authors by Picture | 0 | - | 4.48 | 25,504 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,154 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,027 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,907 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,124 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,677 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,478 |
| Empires by Maps | 0 | - | 4.98 | 119,868 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,616 |
| Merged Company Logos #1 | 0 | - | 4.90 | 106,204 |
| All Country Flags of the World | 0 | - | 5.00 | 3,644,904 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,313,219 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,177 |
| Weapons by Picture | 0 | - | 4.13 | 21,020 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,869 |
| Play-Doh People from History | 0 | - | 4.99 | 94,552 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,824 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,409 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,533,923 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,091,257 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 732,331 |
| A-Z Cities by Pictures | 0 | - | 4.56 | 43,758 |
| Formula One Teams by Logos | 0 | - | 4.49 | 98,648 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,523 |
| Popular Royal Names | 0 | - | 4.27 | 124,817 |
| Queen in the Answers | 0 | - | 4.29 | 52,758 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,755 |
| Shapes and Symbols #1 | 0 | - | 3.80 | 99,527 |
| Shapes and Symbols #2 | 0 | - | 3.99 | 56,878 |
| Number by Picture Quiz | 0 | - | 4.04 | 21,083 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,319 |
| Flags with Crescents | 0 | - | 4.98 | 168,948 |
| Country Flag Trivia | 0 | - | 4.81 | 56,710 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,334 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,185 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 86,954 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,058 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,966 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,564 |
| National Football Team Logos | 0 | - | 4.85 | 179,887 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,240 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,613 |
| Countries with NO Military | 0 | - | 4.97 | 61,883 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 90,568 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,858 |
| Countries with the Least Dense Road Networks | 0 | - | 4.81 | 41,493 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,646 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 112,300 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 111,531 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 114,045 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 74,968 |
| Disney Animated Characters | 0 | - | 4.88 | 600,874 |
| People on Money by Country | 0 | - | 4.83 | 60,248 |
| Fast Math - Addition | 0 | - | 4.87 | 522,002 |
| NATO Countries | 0 | - | 4.98 | 279,029 |
| EU Countries Quiz | 0 | - | 4.99 | 272,626 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,589 |
| 7 Deadly Sins | 0 | - | 4.88 | 398,865 |
| Books of the Protestant Bible | 0 | - | 4.89 | 209,267 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,909 |
| Astronomy Quiz | 0 | - | 4.90 | 82,337 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,814 |
| Solar System Trivia | 0 | - | 4.93 | 46,451 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 65,528 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,202 |
| Countries with the Most Rail Travel | 0 | - | 4.84 | 37,199 |
| Countries with the Most Rail Travel per Capita | 0 | - | 4.93 | 33,220 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 129,908 |
| Countries with the Most JetPunk Users | 0 | - | 4.99 | 167,368 |
| Most Common JetPunk Answers - Countries | 0 | - | 4.91 | 87,327 |
| Countries By Wikipedia Word Clouds | 0 | - | 4.83 | 39,543 |
| Countries with the Most Major Earthquakes | 0 | - | 4.94 | 117,141 |
| Country Superlatives - Top 2 | 0 | - | 4.99 | 70,390 |
| Fictional Characters by Picture - T | 0 | - | 4.13 | 84,573 |
| Fictional Characters by Picture - M | 0 | - | 4.18 | 90,306 |
| Fictional Characters by Picture - G | 0 | - | 4.24 | 86,584 |
| Fictional Characters by Picture - A | 0 | - | 4.20 | 90,987 |
| Fictional Characters by Picture - W | 0 | - | 4.21 | 77,218 |
| Fictional Characters by Picture - R | 0 | - | 4.01 | 72,036 |
| Fictional Characters by Picture - C | 0 | - | 4.23 | 81,333 |
| Fictional Characters by Picture - L | 0 | - | 4.30 | 82,040 |
| Fictional Characters by Picture - B | 0 | - | 4.13 | 74,288 |
| Fictional Characters by Picture - D | 0 | - | 4.23 | 75,278 |
| Fictional Characters by Picture - P | 0 | - | 4.12 | 64,539 |
| Fictional Characters by Picture - F | 0 | - | 4.37 | 66,331 |
| Fictional Characters by Picture - H | 0 | - | 4.10 | 69,390 |
| Fictional Characters by Picture - S | 0 | - | 4.23 | 67,408 |
| Fictional Characters by Picture - O | 0 | - | 4.29 | 52,464 |
| Fictional Characters by Picture - N | 0 | - | 4.11 | 49,331 |
| Years in History by Picture | 0 | - | 4.44 | 35,418 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,711 |
| Flags to Languages | 0 | - | 4.95 | 173,320 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,320 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,367 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,056 |
| Countries with the Most Skyscrapers | 0 | - | 4.92 | 143,901 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,493 |
| Countries with the Tallest Buildings | 0 | - | 4.93 | 104,195 |
| Coldest Countries | 0 | - | 4.97 | 138,243 |
| Coldest World Capitals | 0 | - | 4.95 | 133,425 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,479 |
| Countries with the Least Precipitation | 0 | - | 4.90 | 82,594 |
| World Currency Quiz | 0 | - | 4.91 | 301,649 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,500 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,099 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,298 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,606 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,623 |
| Buddhist Countries | 0 | - | 4.96 | 143,643 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,095,418 |
| Historic Orient Express Routes Map | 0 | - | 4.99 | 53,377 |
| Country Logic Puzzle 4x4 – Sudoku style | 0 | - | 5.00 | 27,960 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,176 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,068 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,849 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,688 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,172 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,583 |
| Terrible Country Spellings Accepted by JetPunk #1 | 0 | - | 4.85 | 33,212 |
| Terrible City Spellings Accepted by JetPunk | 0 | - | 4.97 | 54,214 |
| Countries with the Most Nobel Prizes | 0 | - | 4.87 | 90,416 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 59,896 |
| Five Least Guessed Countries by Continent | 0 | - | 4.97 | 98,016 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,211 |
| Most Guessed Cities by Country #2 | 0 | - | 4.95 | 79,181 |
| Most Guessed Cities by Country #1 | 0 | - | 4.88 | 101,721 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,734 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,659 |
| Most Guessed Countries on JetPunk | 0 | - | 4.96 | 197,275 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,528 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,305 |
| Fictional Characters by Picture - J | 0 | - | 3.96 | 70,058 |
| Fictional Characters by Picture - E | 0 | - | 3.99 | 54,581 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,832 |
| Fruits by Picture | 0 | - | 4.19 | 806,509 |
| Old Movies by Picture | 0 | - | 4.51 | 25,041 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,922 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,471 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,250 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,963 |
| Geography by Picture - B | 0 | - | 4.42 | 55,550 |
| Geography by Picture - H | 0 | - | 4.50 | 58,171 |
| Geography by Picture - N | 0 | - | 4.45 | 42,160 |
| Geography by Picture - R | 0 | - | 4.56 | 40,977 |
| Geography by Picture - T | 0 | - | 4.54 | 57,789 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,236 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,845 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 537,137 |
| Random Logos Quiz | 0 | - | 4.31 | 208,060 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 114,637 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,416,652 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,340 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,963 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,881 |
| Pictures by Letter - D | 0 | - | 4.13 | 37,526 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,733 |
| Books with Animals in the Title #2 | 0 | - | 4.23 | 18,029 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,293 |
| Military History Vocabulary | 0 | - | 4.91 | 66,992 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,627 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,354 |
| Computer Nerd Acronyms Quiz #1 | 0 | - | 4.75 | 155,852 |
| Computer Nerd Acronyms Quiz #2 | 0 | - | 4.46 | 53,933 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,514 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,145 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,953 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,819 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,022 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,331 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,242 |
| Richest Island Countries | 0 | - | 4.84 | 100,246 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,218 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,669 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,729 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,889 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 99,892 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 269,981 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 103,973 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,318 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,311 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,109 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,070 |
| The Sun Quiz | 0 | - | 4.93 | 34,462 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,853 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 87,185 |
| Countries Hidden in a Letter #1 | 0 | - | 5.00 | 48,065 |
| Countries Hidden in a Letter #2 | 0 | - | 5.00 | 35,939 |
| Countries Hidden in a Letter #3 | 0 | - | 4.98 | 21,972 |
| Countries that Start with A | 0 | - | 4.98 | 2,157,798 |
| Countries that Start with B | 0 | - | 4.95 | 2,289,798 |
| Countries that Start with C | 0 | - | 4.96 | 1,818,333 |
| Countries that Start with D | 0 | - | 4.96 | 707,015 |
| Countries that Start with E | 0 | - | 4.95 | 1,374,143 |
| Countries that Start with G | 0 | - | 4.97 | 1,499,771 |
| Countries that Start with H | 0 | - | 4.96 | 602,581 |
| Countries that Start with I | 0 | - | 4.92 | 1,285,590 |
| Countries that Start with J | 0 | - | 4.98 | 600,458 |
| Countries that Start with K | 0 | - | 4.97 | 813,564 |
