| Birds by Picture #1 | 0 | - | 4.47 | 42,083 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,747 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 63,797 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,260 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,920 |
| Animals by Close-up Image | 0 | - | 4.42 | 219,124 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 46,037 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,506 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,497 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,987 |
| Fish by Picture #1 | 0 | - | 4.41 | 109,087 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,910 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,524 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,364 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,586 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,791 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,827 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,903 |
| Name that Bug | 0 | - | 4.12 | 45,650 |
| Fish by Picture #2 | 0 | - | 4.09 | 18,749 |
| Former Countries by Territory Map | 0 | - | 4.96 | 104,052 |
| Empires by Maps | 0 | - | 4.98 | 122,300 |
| Merged Company Logos #1 | 0 | - | 4.90 | 107,514 |
| Animals of Australia | 0 | - | 4.53 | 42,502 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,566 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,390 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 105,444 |
| Play-Doh People from History | 0 | - | 4.99 | 95,659 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,672 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 50,060 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 50,125 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 206,714 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,200 |
| All Country Flags of the World | 0 | - | 5.00 | 3,718,683 |
| Name the Cat Flags | 0 | - | 5.00 | 40,612 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,747 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,636 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,752 |
| Make a Stained Glass Window | 0 | - | 5.00 | 69,122 |
| Flags with Crescents | 0 | - | 4.98 | 171,512 |
| Country Flag Trivia | 0 | - | 4.82 | 58,173 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 105,020 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,522 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,723 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 68,042 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,066 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 61,099 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,549 |
| Real vs. Fake Flags | 0 | - | 4.98 | 125,916 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 184,421 |
| National Football Team Logos | 0 | - | 4.85 | 182,034 |
| Movies with Animals in the Title #1 | 0 | - | 4.20 | 184,105 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,805 |
| National Animals | 0 | - | 4.24 | 90,241 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,634 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,753 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,723 |
| Years in History by Picture | 0 | - | 4.45 | 35,885 |
| Where Are These Doors? | 0 | - | 4.45 | 30,245 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,485 |
| Flags to Languages | 0 | - | 4.95 | 174,596 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.19 | 72,573 |
| Merged Company Logos #2 | 0 | - | 4.75 | 78,363 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,073 |
| Disney Animals | 0 | - | 4.27 | 241,128 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,727 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,836 |
| Fruits by Picture | 0 | - | 4.19 | 809,592 |
| Old Movies by Picture | 0 | - | 4.51 | 25,280 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,325 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 340,358 |
| Geography by Picture - B | 0 | - | 4.42 | 55,802 |
| Geography by Picture - H | 0 | - | 4.50 | 58,406 |
| Geography by Picture - N | 0 | - | 4.45 | 42,366 |
| Geography by Picture - R | 0 | - | 4.56 | 41,168 |
| Geography by Picture - T | 0 | - | 4.54 | 58,022 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,542 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 544,542 |
| Random Logos Quiz | 0 | - | 4.33 | 209,783 |
| All North American Pro Sports Logos | 0 | - | 4.72 | 116,506 |
| Pictures by Letter - A | 0 | - | 4.18 | 33,672 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,299 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,288 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,828 |
| Pictures by Letter - M | 0 | - | 4.24 | 38,030 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,794 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,683 |
| Animals in World History | 0 | - | 4.74 | 44,688 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 113,217 |
| Animals in the Bible | 0 | - | 4.83 | 37,120 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,915 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,531 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,297 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,995 |
| Elements by Picture | 0 | - | 4.27 | 70,345 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,526 |
| Islands by Picture | 0 | - | 4.28 | 107,869 |
| Name that Object #1 | 0 | - | 3.57 | 96,645 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,471 |
| WWII Figures by Picture | 0 | - | 4.89 | 66,380 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,742 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,588 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,232 |
| International Footballers by Picture | 0 | - | 4.51 | 56,497 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 286,813 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 109,219 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 51,527 |
| Geography by Picture - A | 0 | - | 4.39 | 60,454 |
| Geography by Picture - D | 0 | - | 4.15 | 45,802 |
| Geography by Picture - F | 0 | - | 4.31 | 51,204 |
| Geography by Picture - G | 0 | - | 4.39 | 48,096 |
| Geography by Picture - J | 0 | - | 4.16 | 38,616 |
| Geography by Picture - K | 0 | - | 4.29 | 33,267 |
| Geography by Picture - C | 0 | - | 4.31 | 57,255 |
| Geography by Picture - L | 0 | - | 4.37 | 59,154 |
| Geography by Picture - M | 0 | - | 4.14 | 40,596 |
| Geography by Picture - P | 0 | - | 4.24 | 42,582 |
| Geography by Picture - S | 0 | - | 4.38 | 47,194 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 282,227 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,538 |
| Flag Maths | 0 | - | 4.61 | 57,856 |
| Satellite Images #1 | 0 | - | 4.46 | 130,029 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,722 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,420 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,819 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,272 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,244 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,614 |
| Soccer Team Logos | 0 | - | 4.26 | 377,928 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,439,713 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 264,070 |
| Video Game Logos Quiz | 0 | - | 4.40 | 185,159 |
| Movie Logos | 0 | - | 4.33 | 240,581 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,249 |
| History by Picture - A | 0 | - | 4.26 | 46,189 |
| History by Picture - B | 0 | - | 4.40 | 49,385 |
| History by Picture - C | 0 | - | 4.33 | 54,921 |
| History by Picture - F | 0 | - | 4.35 | 38,224 |
| History by Picture - G | 0 | - | 4.40 | 42,469 |
| History by Picture - D | 0 | - | 4.29 | 44,687 |
| History by Picture - E | 0 | - | 4.25 | 44,272 |
| History by Picture - H | 0 | - | 4.37 | 37,115 |
| History by Picture - K | 0 | - | 4.35 | 33,645 |
| History by Picture - M | 0 | - | 4.17 | 36,424 |
| History by Picture - N | 0 | - | 4.40 | 41,558 |
| History by Picture - O | 0 | - | 4.39 | 36,577 |
| History by Picture - T | 0 | - | 4.20 | 33,566 |
| Name that Nut, Seed, or Bean | 0 | - | 4.57 | 57,834 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,198 |
| Animal Populations of Countries | 0 | - | 4.52 | 44,083 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,834 |
| Top 15 Countries with the Most Cows | 0 | - | 4.74 | 107,514 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,377 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,767 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,716 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,866 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,904 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,848 |
| Flowers by Picture | 0 | - | 4.46 | 105,883 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,962 |
| Name that Object #2 | 0 | - | 3.63 | 15,535 |
| Authors by Picture | 0 | - | 4.48 | 25,640 |
| Name that Object #3 | 0 | - | 3.93 | 14,474 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 91,003 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 56,198 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,432 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 66,544 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 59,345 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 165,833 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,795 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,702 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,391 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 72,160 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.14 | 79,803 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,865 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 96,140 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,367 |
| Name that Historical Figure #3 | 0 | - | 4.37 | 246,179 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 160,799 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 94,652 |
| Musicians by Picture #1 | 0 | - | 4.38 | 110,145 |
| Musicians by Picture #2 | 0 | - | 4.29 | 77,469 |
| Musicians by Picture #4 | 0 | - | 4.07 | 65,670 |
| Musicians by Picture #3 | 0 | - | 4.10 | 59,611 |
| Emoji Flags | 0 | - | 4.35 | 44,302 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,815 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.69 | 38,252 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,716 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,675 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 67,027 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 71,315 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,942 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 396,199 |
| Airline Logos | 0 | - | 4.45 | 141,488 |
| Fast Food Logos Quiz | 0 | - | 4.45 | 249,616 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 160,032 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,597 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,367 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,719 |
| Brand Logos That Start With D | 0 | - | 4.37 | 62,261 |
