| Birds by Picture #2 | 0 | - | 4.33 | 36,534 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,333 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,043 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 63,397 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,611 |
| Animals by Close-up Image | 0 | - | 4.42 | 218,612 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,802 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,349 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,066 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,690 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,654 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,632 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,294 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,214 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,369 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,683 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,756 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,848 |
| Name that Bug | 0 | - | 4.12 | 45,592 |
| Fish by Picture #2 | 0 | - | 4.07 | 18,620 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,175 |
| Empires by Maps | 0 | - | 4.98 | 121,036 |
| Merged Company Logos #1 | 0 | - | 4.90 | 106,841 |
| Animals of Australia | 0 | - | 4.52 | 42,381 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,365 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,324 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 104,753 |
| Play-Doh People from History | 0 | - | 4.99 | 95,108 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,267 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,641 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,735 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 206,386 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,785 |
| All Country Flags of the World | 0 | - | 5.00 | 3,683,651 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,540,713 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,576 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,601 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,728 |
| Flags with Crescents | 0 | - | 4.98 | 170,340 |
| Country Flag Trivia | 0 | - | 4.81 | 57,433 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,203 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,880 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,867 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,527 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,526 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 60,708 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,092 |
| Real vs. Fake Flags | 0 | - | 4.98 | 124,850 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 182,008 |
| National Football Team Logos | 0 | - | 4.85 | 180,914 |
| Movies with Animals in the Title #1 | 0 | - | 4.20 | 183,857 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,645 |
| National Animals | 0 | - | 4.24 | 89,789 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,003 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,316 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,329 |
| Years in History by Picture | 0 | - | 4.44 | 35,631 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,122 |
| Flags to Languages | 0 | - | 4.95 | 173,961 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.19 | 72,166 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,805 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,732 |
| Disney Animals | 0 | - | 4.27 | 240,200 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,411 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,650 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,359 |
| Fruits by Picture | 0 | - | 4.19 | 808,113 |
| Old Movies by Picture | 0 | - | 4.51 | 25,157 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,147 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 338,246 |
| Geography by Picture - B | 0 | - | 4.42 | 55,684 |
| Geography by Picture - H | 0 | - | 4.50 | 58,289 |
| Geography by Picture - N | 0 | - | 4.45 | 42,260 |
| Geography by Picture - R | 0 | - | 4.56 | 41,079 |
| Geography by Picture - T | 0 | - | 4.54 | 57,910 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,195 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 541,201 |
| Random Logos Quiz | 0 | - | 4.33 | 208,838 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 115,634 |
| Pictures by Letter - A | 0 | - | 4.18 | 33,521 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,152 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,095 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,691 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,890 |
| Animals in the Bible | 0 | - | 4.83 | 36,805 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,800 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,288 |
| Animals in World History | 0 | - | 4.74 | 44,586 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,690 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,425 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,067 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,785 |
| Elements by Picture | 0 | - | 4.27 | 70,106 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,394 |
| Islands by Picture | 0 | - | 4.28 | 107,298 |
| Name that Object #1 | 0 | - | 3.57 | 96,541 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,340 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,823 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,160 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,379 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,097 |
| International Footballers by Picture | 0 | - | 4.51 | 55,950 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 285,166 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 108,050 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 50,978 |
| Geography by Picture - A | 0 | - | 4.39 | 60,332 |
| Geography by Picture - D | 0 | - | 4.15 | 45,714 |
| Geography by Picture - F | 0 | - | 4.31 | 51,079 |
| Geography by Picture - G | 0 | - | 4.39 | 48,008 |
| Geography by Picture - J | 0 | - | 4.16 | 38,518 |
| Geography by Picture - K | 0 | - | 4.29 | 33,179 |
| Geography by Picture - C | 0 | - | 4.31 | 57,139 |
| Geography by Picture - L | 0 | - | 4.37 | 59,051 |
| Geography by Picture - M | 0 | - | 4.14 | 40,512 |
| Geography by Picture - P | 0 | - | 4.24 | 42,490 |
| Geography by Picture - S | 0 | - | 4.38 | 47,094 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,112 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,894 |
| Flag Maths | 0 | - | 4.64 | 57,796 |
| Satellite Images #1 | 0 | - | 4.47 | 129,499 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,417 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,002 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,737 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,020 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,050 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,220 |
| Soccer Team Logos | 0 | - | 4.26 | 375,804 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,429,533 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 262,758 |
| Video Game Logos Quiz | 0 | - | 4.40 | 184,430 |
| Movie Logos | 0 | - | 4.33 | 239,256 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,698 |
| History by Picture - A | 0 | - | 4.26 | 45,965 |
| History by Picture - B | 0 | - | 4.40 | 49,142 |
| History by Picture - C | 0 | - | 4.36 | 54,661 |
| History by Picture - F | 0 | - | 4.35 | 38,016 |
| History by Picture - G | 0 | - | 4.40 | 42,269 |
| History by Picture - D | 0 | - | 4.29 | 44,460 |
| History by Picture - E | 0 | - | 4.25 | 44,067 |
| History by Picture - H | 0 | - | 4.37 | 36,911 |
| History by Picture - K | 0 | - | 4.35 | 33,465 |
| History by Picture - M | 0 | - | 4.17 | 36,244 |
| History by Picture - N | 0 | - | 4.40 | 41,378 |
| History by Picture - O | 0 | - | 4.39 | 36,415 |
| History by Picture - T | 0 | - | 4.20 | 33,409 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,443 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,048 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,943 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,741 |
| Top 15 Countries with the Most Cows | 0 | - | 4.73 | 107,338 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,203 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,536 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,532 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,514 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,579 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,303 |
| Flowers by Picture | 0 | - | 4.46 | 105,741 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,852 |
| Name that Object #2 | 0 | - | 3.64 | 15,471 |
| Authors by Picture | 0 | - | 4.48 | 25,570 |
| Name that Object #3 | 0 | - | 3.93 | 14,426 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 90,408 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,963 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,057 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 66,203 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 59,050 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 165,389 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,572 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,534 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,258 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,882 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.14 | 79,565 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,598 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 95,794 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,242 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 239,915 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 159,539 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 93,643 |
| Musicians by Picture #1 | 0 | - | 4.37 | 109,330 |
| Musicians by Picture #2 | 0 | - | 4.29 | 76,847 |
| Musicians by Picture #4 | 0 | - | 4.07 | 65,218 |
| Musicians by Picture #3 | 0 | - | 4.10 | 59,235 |
| Emoji Flags | 0 | - | 4.35 | 44,167 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,036 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 38,022 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,255 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,457 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,644 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,951 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,862 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 395,024 |
| Airline Logos | 0 | - | 4.45 | 141,050 |
| Fast Food Logos Quiz | 0 | - | 4.45 | 248,852 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 159,424 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,141 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,924 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,283 |
| Brand Logos That Start With D | 0 | - | 4.35 | 61,830 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,471 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,877 |
