| Former Countries by Territory Map | 0 | - | 4.96 | 102,089 |
| Empires by Maps | 0 | - | 4.98 | 119,239 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,094 |
| Name that Object #1 | 0 | - | 3.56 | 96,355 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,342 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,232 |
| All Country Flags of the World | 0 | - | 5.00 | 3,626,535 |
| Years in History by Picture | 0 | - | 4.44 | 35,286 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,491 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,530,712 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,504 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,157 |
| Old Movies by Picture | 0 | - | 4.51 | 24,943 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,814 |
| Name that Object #3 | 0 | - | 3.93 | 14,329 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,101 |
| Flags with Crescents | 0 | - | 4.98 | 168,312 |
| Country Flag Trivia | 0 | - | 4.81 | 56,311 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,895 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,840 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,443 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,783 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,663 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,335 |
| Random Logos Quiz | 0 | - | 4.31 | 207,593 |
| National Football Team Logos | 0 | - | 4.85 | 179,434 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,244 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,849 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,736 |
| Pictures by Letter - D | 0 | - | 4.13 | 37,421 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,640 |
| Fruits by Picture | 0 | - | 4.20 | 805,753 |
| Geography by Picture - B | 0 | - | 4.42 | 55,493 |
| Geography by Picture - H | 0 | - | 4.50 | 58,107 |
| Geography by Picture - N | 0 | - | 4.45 | 42,105 |
| Geography by Picture - R | 0 | - | 4.56 | 40,930 |
| Geography by Picture - T | 0 | - | 4.54 | 57,743 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 114,067 |
| Flags to Languages | 0 | - | 4.95 | 172,950 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,361 |
| Pictures by Letter - G | 0 | - | 4.14 | 28,016 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,424 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,903 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,360 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,180 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,661 |
| Pictures by Letter - K | 0 | - | 4.18 | 25,007 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,268 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,394 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,938 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,689 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,564 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,182 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,408 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 535,132 |
| Name that Bug | 0 | - | 4.12 | 45,495 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,241 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,748 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,515 |
| Elements by Picture | 0 | - | 4.28 | 69,717 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,229 |
| Islands by Picture | 0 | - | 4.29 | 106,333 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,151 |
| Geography by Picture - A | 0 | - | 4.39 | 60,123 |
| Geography by Picture - D | 0 | - | 4.15 | 45,553 |
| Geography by Picture - F | 0 | - | 4.31 | 50,887 |
| Geography by Picture - G | 0 | - | 4.38 | 47,858 |
| Geography by Picture - J | 0 | - | 4.16 | 38,377 |
| Geography by Picture - K | 0 | - | 4.29 | 33,051 |
| Geography by Picture - C | 0 | - | 4.31 | 56,983 |
| Geography by Picture - L | 0 | - | 4.37 | 58,843 |
| Geography by Picture - M | 0 | - | 4.14 | 40,378 |
| Geography by Picture - P | 0 | - | 4.24 | 42,349 |
| Geography by Picture - S | 0 | - | 4.38 | 46,963 |
| Video Game Logos Quiz | 0 | - | 4.40 | 183,210 |
| Movie Logos | 0 | - | 4.33 | 236,929 |
| History by Picture - A | 0 | - | 4.25 | 45,628 |
| History by Picture - B | 0 | - | 4.40 | 48,762 |
| History by Picture - C | 0 | - | 4.36 | 54,279 |
| History by Picture - F | 0 | - | 4.35 | 37,740 |
| History by Picture - G | 0 | - | 4.40 | 42,002 |
| History by Picture - D | 0 | - | 4.29 | 44,157 |
| History by Picture - E | 0 | - | 4.27 | 43,782 |
| History by Picture - H | 0 | - | 4.37 | 36,672 |
| History by Picture - K | 0 | - | 4.35 | 33,228 |
| History by Picture - M | 0 | - | 4.17 | 36,025 |
| History by Picture - N | 0 | - | 4.40 | 41,119 |
| History by Picture - O | 0 | - | 4.39 | 36,179 |
| History by Picture - T | 0 | - | 4.20 | 33,201 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,574 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,166 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,288 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,419 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,049 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,410 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,071 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,868 |
| International Footballers by Picture | 0 | - | 4.50 | 55,104 |
| Name that Historical Figure #2 | 0 | - | 4.41 | 283,542 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,095 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,549 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,225 |
| Flag Maths | 0 | - | 4.64 | 57,700 |
| Satellite Images #1 | 0 | - | 4.46 | 129,164 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,116 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,765 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,756 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,879 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,687 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,615 |
| Soccer Team Logos | 0 | - | 4.26 | 372,383 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 177,904 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 260,440 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,179 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,716 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,017 |
| Foods by Picture | 0 | - | 3.81 | 225,737 |
| Junk Foods by Picture | 0 | - | 3.69 | 96,157 |
| Christmas by Picture | 0 | - | 4.25 | 28,125 |
| Hats by Picture | 0 | - | 4.21 | 17,923 |
| Weapons by Picture | 0 | - | 4.13 | 20,962 |
| Cars by Picture | 0 | - | 3.89 | 41,248 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,257 |
| Plants by Picture | 0 | - | 4.24 | 14,384 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,167 |
| Women in History by Picture | 0 | - | 4.25 | 25,822 |
| Famous Foreheads #2 | 0 | - | 3.17 | 15,706 |
| Geography by Picture - E | 0 | - | 3.55 | 47,313 |
| Landforms by Picture | 0 | - | 4.31 | 20,610 |
| Geography by Picture - I | 0 | - | 4.00 | 39,348 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,924 |
| Pictures by Letter - H | 0 | - | 3.97 | 30,365 |
| Pictures by Letter - C | 0 | - | 3.99 | 30,083 |
| Pictures by Letter - O | 0 | - | 3.98 | 28,586 |
| Pictures by Letter - Q | 0 | - | 3.92 | 20,342 |
| Pictures by Letter - S | 0 | - | 3.82 | 20,851 |
| Pictures by Letter - W | 0 | - | 3.92 | 20,052 |
| Pictures by Letter - V | 0 | - | 4.00 | 17,896 |
| History by Picture - I | 0 | - | 4.26 | 26,118 |
| History by Picture - J | 0 | - | 4.18 | 26,632 |
| History by Picture - L | 0 | - | 4.18 | 30,661 |
| History by Picture - P | 0 | - | 4.08 | 25,207 |
| History by Picture - Q | 0 | - | 4.03 | 21,996 |
| History by Picture - R | 0 | - | 4.13 | 26,743 |
| History by Picture - S | 0 | - | 4.14 | 27,689 |
| History by Picture - U | 0 | - | 4.24 | 25,019 |
| History by Picture - V | 0 | - | 4.30 | 24,997 |
| History by Picture - W | 0 | - | 4.01 | 21,555 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,718 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,962 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 268,355 |
| Flowers by Picture | 0 | - | 4.46 | 105,119 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,619 |
| Authors by Picture | 0 | - | 4.48 | 25,457 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 79,801 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,392 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,443 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,611 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 58,622 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,284 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,142 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,918 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,018 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,346 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,036 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 164,814 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,180 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,249 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,020 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,435 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.13 | 79,162 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,114 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 94,864 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,010 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 238,546 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 158,543 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 92,857 |
| Musicians by Picture #1 | 0 | - | 4.39 | 107,802 |
| Musicians by Picture #2 | 0 | - | 4.29 | 75,746 |
| Musicians by Picture #4 | 0 | - | 4.07 | 64,384 |
| Musicians by Picture #3 | 0 | - | 4.10 | 58,586 |
| Emoji Flags | 0 | - | 4.35 | 43,913 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.67 | 37,635 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,496 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,305 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,011 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,360 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,718 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 393,621 |
| Airline Logos | 0 | - | 4.45 | 140,239 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,410,481 |
| Fast Food Logos Quiz | 0 | - | 4.44 | 247,523 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 158,330 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,103 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,565 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,069 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,603 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,283 |
| Vegetables by Picture | 0 | - | 4.39 | 63,081 |
| Pick a Picture - Musical Instruments | 0 | - | 4.53 | 52,052 |
