| Birds by Picture #2 | 0 | - | 4.33 | 36,556 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,354 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,075 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 63,445 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,653 |
| Animals by Close-up Image | 0 | - | 4.42 | 218,694 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,838 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,374 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,116 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,734 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,687 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,670 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,330 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,223 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,392 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,697 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,760 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,854 |
| Name that Bug | 0 | - | 4.12 | 45,599 |
| Fish by Picture #2 | 0 | - | 4.09 | 18,629 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,284 |
| Empires by Maps | 0 | - | 4.98 | 121,183 |
| Merged Company Logos #1 | 0 | - | 4.90 | 106,902 |
| Animals of Australia | 0 | - | 4.52 | 42,398 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,389 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,333 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 104,858 |
| Play-Doh People from History | 0 | - | 4.99 | 95,174 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,320 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,725 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,817 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 206,418 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,835 |
| All Country Flags of the World | 0 | - | 5.00 | 3,688,364 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,541,520 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,992 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,887 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,788 |
| Flags with Crescents | 0 | - | 4.98 | 170,553 |
| Country Flag Trivia | 0 | - | 4.81 | 57,539 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,326 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,951 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,982 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,589 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,601 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 60,765 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,166 |
| Real vs. Fake Flags | 0 | - | 4.98 | 125,030 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 182,337 |
| National Football Team Logos | 0 | - | 4.85 | 181,061 |
| Movies with Animals in the Title #1 | 0 | - | 4.20 | 183,896 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,667 |
| National Animals | 0 | - | 4.24 | 89,806 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,034 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,357 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,357 |
| Years in History by Picture | 0 | - | 4.44 | 35,652 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,165 |
| Flags to Languages | 0 | - | 4.95 | 174,060 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.19 | 72,241 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,855 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,785 |
| Disney Animals | 0 | - | 4.27 | 240,276 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,447 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,679 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,430 |
| Fruits by Picture | 0 | - | 4.19 | 808,301 |
| Old Movies by Picture | 0 | - | 4.51 | 25,167 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,185 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 338,416 |
| Geography by Picture - B | 0 | - | 4.42 | 55,698 |
| Geography by Picture - H | 0 | - | 4.50 | 58,301 |
| Geography by Picture - N | 0 | - | 4.45 | 42,275 |
| Geography by Picture - R | 0 | - | 4.56 | 41,088 |
| Geography by Picture - T | 0 | - | 4.54 | 57,922 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,239 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 541,710 |
| Random Logos Quiz | 0 | - | 4.33 | 208,935 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 115,767 |
| Pictures by Letter - A | 0 | - | 4.18 | 33,535 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,164 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,120 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,707 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,905 |
| Animals in the Bible | 0 | - | 4.83 | 36,843 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,814 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,354 |
| Animals in World History | 0 | - | 4.74 | 44,607 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,735 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,440 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,096 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,812 |
| Elements by Picture | 0 | - | 4.27 | 70,133 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,402 |
| Islands by Picture | 0 | - | 4.28 | 107,383 |
| Name that Object #1 | 0 | - | 3.57 | 96,554 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,369 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,910 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,266 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,404 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,122 |
| International Footballers by Picture | 0 | - | 4.51 | 56,026 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 285,297 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 108,130 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 51,014 |
| Geography by Picture - A | 0 | - | 4.39 | 60,345 |
| Geography by Picture - D | 0 | - | 4.15 | 45,723 |
| Geography by Picture - F | 0 | - | 4.31 | 51,096 |
| Geography by Picture - G | 0 | - | 4.39 | 48,023 |
| Geography by Picture - J | 0 | - | 4.16 | 38,531 |
| Geography by Picture - K | 0 | - | 4.29 | 33,190 |
| Geography by Picture - C | 0 | - | 4.31 | 57,153 |
| Geography by Picture - L | 0 | - | 4.37 | 59,066 |
| Geography by Picture - M | 0 | - | 4.14 | 40,524 |
| Geography by Picture - P | 0 | - | 4.24 | 42,505 |
| Geography by Picture - S | 0 | - | 4.38 | 47,114 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,268 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,977 |
| Flag Maths | 0 | - | 4.64 | 57,802 |
| Satellite Images #1 | 0 | - | 4.47 | 129,525 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,439 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,022 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,750 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,046 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,061 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,263 |
| Soccer Team Logos | 0 | - | 4.26 | 376,099 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,430,906 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 262,949 |
| Video Game Logos Quiz | 0 | - | 4.40 | 184,516 |
| Movie Logos | 0 | - | 4.33 | 239,432 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,776 |
| History by Picture - A | 0 | - | 4.26 | 45,991 |
| History by Picture - B | 0 | - | 4.40 | 49,172 |
| History by Picture - C | 0 | - | 4.36 | 54,701 |
| History by Picture - F | 0 | - | 4.35 | 38,054 |
| History by Picture - G | 0 | - | 4.40 | 42,297 |
| History by Picture - D | 0 | - | 4.29 | 44,495 |
| History by Picture - E | 0 | - | 4.25 | 44,097 |
| History by Picture - H | 0 | - | 4.37 | 36,943 |
| History by Picture - K | 0 | - | 4.35 | 33,498 |
| History by Picture - M | 0 | - | 4.17 | 36,269 |
| History by Picture - N | 0 | - | 4.40 | 41,407 |
| History by Picture - O | 0 | - | 4.39 | 36,441 |
| History by Picture - T | 0 | - | 4.20 | 33,427 |
| Name that Nut, Seed, or Bean | 0 | - | 4.57 | 57,486 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,066 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,960 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,753 |
| Top 15 Countries with the Most Cows | 0 | - | 4.73 | 107,373 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,234 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,563 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,555 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,570 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,631 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,387 |
| Flowers by Picture | 0 | - | 4.46 | 105,760 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,873 |
| Name that Object #2 | 0 | - | 3.64 | 15,479 |
| Authors by Picture | 0 | - | 4.48 | 25,587 |
| Name that Object #3 | 0 | - | 3.93 | 14,434 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 90,495 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,995 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,116 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 66,268 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 59,092 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 165,422 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,611 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,557 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,282 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,924 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.14 | 79,606 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,646 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 95,848 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,263 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 240,029 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 159,618 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 93,699 |
| Musicians by Picture #1 | 0 | - | 4.37 | 109,472 |
| Musicians by Picture #2 | 0 | - | 4.29 | 76,962 |
| Musicians by Picture #4 | 0 | - | 4.07 | 65,301 |
| Musicians by Picture #3 | 0 | - | 4.10 | 59,299 |
| Emoji Flags | 0 | - | 4.35 | 44,187 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,123 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 38,065 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,326 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,471 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,707 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 71,013 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,871 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 395,130 |
| Airline Logos | 0 | - | 4.45 | 141,113 |
| Fast Food Logos Quiz | 0 | - | 4.45 | 248,964 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 159,498 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,193 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,985 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,343 |
| Brand Logos That Start With D | 0 | - | 4.36 | 61,885 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,557 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,907 |
