| Pictures by Letter - A | 0 | - | 4.17 | 33,137 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,732 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,634 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,320 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,531 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,634 |
| Empires by Maps | 0 | - | 4.98 | 118,609 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,288 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,933 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,342 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,304 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,116 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,591 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,930 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,188 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,329 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,875 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,621 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,488 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,005 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,852 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,061 |
| All Country Flags of the World | 0 | - | 5.00 | 3,605,376 |
| Pictures by Letter - H | 0 | - | 3.95 | 30,291 |
| Pictures by Letter - C | 0 | - | 3.99 | 30,005 |
| Pictures by Letter - O | 0 | - | 3.98 | 28,525 |
| Pictures by Letter - Q | 0 | - | 3.92 | 20,288 |
| Pictures by Letter - S | 0 | - | 3.82 | 20,786 |
| Pictures by Letter - W | 0 | - | 3.92 | 19,998 |
| Pictures by Letter - V | 0 | - | 3.98 | 17,842 |
| Years in History by Picture | 0 | - | 4.44 | 35,128 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,266 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,959 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,688 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,873 |
| Name that Object #1 | 0 | - | 3.56 | 96,314 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,848 |
| Flags with Crescents | 0 | - | 4.98 | 167,657 |
| Country Flag Trivia | 0 | - | 4.81 | 55,982 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,485 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,509 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,975 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,501 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,420 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,080 |
| National Football Team Logos | 0 | - | 4.84 | 178,769 |
| Old Movies by Picture | 0 | - | 4.51 | 24,827 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,701 |
| Random Logos Quiz | 0 | - | 4.32 | 207,093 |
| Fruits by Picture | 0 | - | 4.20 | 804,789 |
| Geography by Picture - B | 0 | - | 4.42 | 55,428 |
| Geography by Picture - H | 0 | - | 4.49 | 58,060 |
| Geography by Picture - N | 0 | - | 4.45 | 42,057 |
| Geography by Picture - R | 0 | - | 4.55 | 40,885 |
| Geography by Picture - T | 0 | - | 4.54 | 57,689 |
| Flags to Languages | 0 | - | 4.95 | 172,560 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,401 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,158 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,314 |
| Name that Object #2 | 0 | - | 3.64 | 15,333 |
| Name that Object #3 | 0 | - | 3.93 | 14,309 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,878 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,607 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,489 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 532,423 |
| Name that Bug | 0 | - | 4.12 | 45,457 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,192 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,637 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,425 |
| Elements by Picture | 0 | - | 4.28 | 69,571 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,168 |
| Islands by Picture | 0 | - | 4.29 | 105,954 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,060 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,012 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,938 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,268 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,939 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,149 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,784 |
| International Footballers by Picture | 0 | - | 4.50 | 54,805 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,751 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,682 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,320 |
| Geography by Picture - A | 0 | - | 4.39 | 60,063 |
| Geography by Picture - D | 0 | - | 4.15 | 45,508 |
| Geography by Picture - F | 0 | - | 4.31 | 50,839 |
| Geography by Picture - G | 0 | - | 4.38 | 47,800 |
| Geography by Picture - J | 0 | - | 4.16 | 38,344 |
| Geography by Picture - K | 0 | - | 4.28 | 33,024 |
| Geography by Picture - C | 0 | - | 4.31 | 56,921 |
| Geography by Picture - L | 0 | - | 4.37 | 58,773 |
| Geography by Picture - M | 0 | - | 4.14 | 40,352 |
| Geography by Picture - P | 0 | - | 4.24 | 42,309 |
| Geography by Picture - S | 0 | - | 4.38 | 46,920 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,485 |
| Flag Maths | 0 | - | 4.78 | 57,681 |
| Satellite Images #1 | 0 | - | 4.46 | 129,036 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,008 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,666 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,662 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,818 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,396 |
| Soccer Team Logos | 0 | - | 4.26 | 371,019 |
| Ultimate Car Logos Quiz | 0 | - | 4.79 | 176,468 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,382 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,752 |
| Movie Logos | 0 | - | 4.33 | 236,037 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,809 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,230 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,315 |
| History by Picture - A | 0 | - | 4.25 | 45,477 |
| History by Picture - B | 0 | - | 4.40 | 48,603 |
| History by Picture - C | 0 | - | 4.36 | 54,099 |
| History by Picture - F | 0 | - | 4.35 | 37,599 |
| History by Picture - G | 0 | - | 4.40 | 41,865 |
| History by Picture - D | 0 | - | 4.29 | 44,022 |
| History by Picture - E | 0 | - | 4.27 | 43,639 |
| History by Picture - H | 0 | - | 4.37 | 36,554 |
| History by Picture - K | 0 | - | 4.35 | 33,116 |
| History by Picture - M | 0 | - | 4.17 | 35,924 |
| History by Picture - N | 0 | - | 4.40 | 41,013 |
| History by Picture - O | 0 | - | 4.39 | 36,055 |
| History by Picture - T | 0 | - | 4.20 | 33,107 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,877 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,747 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,513 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,403,232 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,502 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,693 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 267,987 |
| Foods by Picture | 0 | - | 3.81 | 225,508 |
| Flowers by Picture | 0 | - | 4.46 | 105,022 |
| Junk Foods by Picture | 0 | - | 3.69 | 96,031 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,540 |
| Christmas by Picture | 0 | - | 4.25 | 28,103 |
| Hats by Picture | 0 | - | 4.21 | 17,907 |
| Weapons by Picture | 0 | - | 4.13 | 20,891 |
| Cars by Picture | 0 | - | 3.89 | 41,107 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,232 |
| Authors by Picture | 0 | - | 4.48 | 25,400 |
| Plants by Picture | 0 | - | 4.24 | 14,337 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 79,512 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,568 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,174 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,225 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,400 |
| Songs by Picture Quiz #2 | 0 | - | 4.41 | 58,438 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,112 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,938 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,788 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,914 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,150 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,892 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 164,475 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,043 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,145 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 50,938 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,270 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.13 | 79,015 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 71,970 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 94,631 |
| Women in History by Picture | 0 | - | 4.25 | 25,769 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 45,938 |
| Famous Foreheads #2 | 0 | - | 3.17 | 15,662 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 237,723 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 158,085 |
| Name that Historical Figure #6 | 0 | - | 4.27 | 92,464 |
| Musicians by Picture #1 | 0 | - | 4.39 | 107,218 |
| Musicians by Picture #2 | 0 | - | 4.29 | 75,370 |
| Musicians by Picture #4 | 0 | - | 4.07 | 64,100 |
| Musicians by Picture #3 | 0 | - | 4.10 | 58,369 |
| Geography by Picture - E | 0 | - | 3.55 | 47,286 |
| Landforms by Picture | 0 | - | 4.31 | 20,578 |
| Geography by Picture - I | 0 | - | 4.00 | 39,325 |
| Emoji Flags | 0 | - | 4.35 | 43,828 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.64 | 37,487 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,191 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,253 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 65,768 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,125 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,675 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 393,080 |
| Airline Logos | 0 | - | 4.45 | 139,998 |
| Fast Food Logos Quiz | 0 | - | 4.43 | 247,028 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 157,883 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,758 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,716 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,226 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,045 |
| History by Picture - I | 0 | - | 4.26 | 26,025 |
| History by Picture - J | 0 | - | 4.18 | 26,538 |
| History by Picture - L | 0 | - | 4.18 | 30,571 |
| History by Picture - P | 0 | - | 4.08 | 25,114 |
| History by Picture - Q | 0 | - | 4.03 | 21,928 |
| History by Picture - R | 0 | - | 4.13 | 26,648 |
| History by Picture - S | 0 | - | 4.14 | 27,600 |
| History by Picture - U | 0 | - | 4.24 | 24,949 |
| History by Picture - V | 0 | - | 4.30 | 24,921 |
| History by Picture - W | 0 | - | 4.01 | 21,502 |
| Vegetables by Picture | 0 | - | 4.39 | 62,887 |
