| Birds by Picture #3 | 0 | - | 4.24 | 32,848 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,405 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,308 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,846 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,622 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,242 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,920 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,110 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,091 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,911 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,770 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,902 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,870 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,592 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,989 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,739 |
| Name that Bug | 0 | - | 4.12 | 45,451 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,450 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,404 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,568 |
| Empires by Maps | 0 | - | 4.98 | 118,521 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,446 |
| Animals of Australia | 0 | - | 4.52 | 42,155 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,993 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,230 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,783 |
| Play-Doh People from History | 0 | - | 4.99 | 93,862 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,314 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,744 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 48,897 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,508 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,038 |
| All Country Flags of the World | 0 | - | 5.00 | 3,602,800 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,468 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,457 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,702 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,816 |
| Flags with Crescents | 0 | - | 4.98 | 167,580 |
| Country Flag Trivia | 0 | - | 4.81 | 55,942 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,430 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,462 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,922 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,473 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,386 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,047 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,583 |
| National Football Team Logos | 0 | - | 4.84 | 178,687 |
| Movies with Animals in the Title #1 | 0 | - | 4.21 | 183,050 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,009 |
| National Animals | 0 | - | 4.24 | 89,158 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,614 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,316 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,419 |
| Years in History by Picture | 0 | - | 4.44 | 35,113 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,233 |
| Flags to Languages | 0 | - | 4.95 | 172,498 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.20 | 71,254 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,763 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,154 |
| Disney Animals | 0 | - | 4.27 | 238,645 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,408 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,213 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,279 |
| Fruits by Picture | 0 | - | 4.20 | 804,676 |
| Old Movies by Picture | 0 | - | 4.51 | 24,802 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,685 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,535 |
| Geography by Picture - B | 0 | - | 4.42 | 55,419 |
| Geography by Picture - H | 0 | - | 4.49 | 58,051 |
| Geography by Picture - N | 0 | - | 4.45 | 42,050 |
| Geography by Picture - R | 0 | - | 4.55 | 40,879 |
| Geography by Picture - T | 0 | - | 4.54 | 57,679 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,452 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 532,147 |
| Random Logos Quiz | 0 | - | 4.32 | 207,037 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,291 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,126 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,726 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,618 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,309 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,526 |
| Animals in the Bible | 0 | - | 4.83 | 35,819 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,035 |
| Animals in World History | 0 | - | 4.74 | 44,219 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,494 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,473 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,190 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,629 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,414 |
| Elements by Picture | 0 | - | 4.28 | 69,555 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,162 |
| Islands by Picture | 0 | - | 4.29 | 105,907 |
| Name that Object #1 | 0 | - | 3.56 | 96,307 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,048 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,543 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,662 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,847 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,777 |
| International Footballers by Picture | 0 | - | 4.50 | 54,755 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,657 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,644 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,300 |
| Geography by Picture - A | 0 | - | 4.39 | 60,055 |
| Geography by Picture - D | 0 | - | 4.15 | 45,495 |
| Geography by Picture - F | 0 | - | 4.31 | 50,830 |
| Geography by Picture - G | 0 | - | 4.38 | 47,792 |
| Geography by Picture - J | 0 | - | 4.16 | 38,336 |
| Geography by Picture - K | 0 | - | 4.28 | 33,015 |
| Geography by Picture - C | 0 | - | 4.31 | 56,911 |
| Geography by Picture - L | 0 | - | 4.37 | 58,764 |
| Geography by Picture - M | 0 | - | 4.14 | 40,347 |
| Geography by Picture - P | 0 | - | 4.24 | 42,301 |
| Geography by Picture - S | 0 | - | 4.38 | 46,911 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,390 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,478 |
| Flag Maths | 0 | - | 4.78 | 57,676 |
| Satellite Images #1 | 0 | - | 4.46 | 129,014 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,990 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,655 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,568 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,651 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,810 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,370 |
| Soccer Team Logos | 0 | - | 4.26 | 370,853 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,402,367 |
| Ultimate Car Logos Quiz | 0 | - | 4.79 | 176,301 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,273 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,675 |
| Movie Logos | 0 | - | 4.33 | 235,929 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,777 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,201 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,274 |
| History by Picture - A | 0 | - | 4.25 | 45,465 |
| History by Picture - B | 0 | - | 4.40 | 48,590 |
| History by Picture - C | 0 | - | 4.36 | 54,087 |
| History by Picture - F | 0 | - | 4.35 | 37,586 |
| History by Picture - G | 0 | - | 4.40 | 41,854 |
| History by Picture - D | 0 | - | 4.29 | 44,014 |
| History by Picture - E | 0 | - | 4.27 | 43,631 |
| History by Picture - H | 0 | - | 4.37 | 36,546 |
| History by Picture - K | 0 | - | 4.35 | 33,107 |
| History by Picture - M | 0 | - | 4.17 | 35,915 |
| History by Picture - N | 0 | - | 4.40 | 41,003 |
| History by Picture - O | 0 | - | 4.39 | 36,042 |
| History by Picture - T | 0 | - | 4.20 | 33,100 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,851 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,623 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,604 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,517 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,774 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,795 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,861 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,156 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,476 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,662 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 267,930 |
| Flowers by Picture | 0 | - | 4.46 | 105,013 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,534 |
| Name that Object #2 | 0 | - | 3.64 | 15,326 |
| Authors by Picture | 0 | - | 4.48 | 25,395 |
| Name that Object #3 | 0 | - | 3.93 | 14,306 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 79,476 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,068 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,197 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,376 |
| Songs by Picture Quiz #2 | 0 | - | 4.41 | 58,421 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 164,455 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,024 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,135 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 50,929 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,258 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.13 | 78,999 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 71,944 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 94,601 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 45,930 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 237,673 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 158,052 |
| Name that Historical Figure #6 | 0 | - | 4.27 | 92,435 |
| Musicians by Picture #1 | 0 | - | 4.39 | 107,148 |
| Musicians by Picture #2 | 0 | - | 4.29 | 75,312 |
| Musicians by Picture #4 | 0 | - | 4.07 | 64,060 |
| Musicians by Picture #3 | 0 | - | 4.10 | 58,336 |
| Emoji Flags | 0 | - | 4.35 | 43,817 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,914 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.64 | 37,474 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,153 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,243 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 65,752 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,108 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,672 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 393,025 |
| Airline Logos | 0 | - | 4.45 | 139,966 |
| Fast Food Logos Quiz | 0 | - | 4.43 | 246,947 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 157,830 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,723 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,673 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,199 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,017 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,281 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,918 |
