| Birds by Picture #1 | 0 | - | 4.47 | 41,996 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,805 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,661 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,438 |
| Animals by Close-up Image | 0 | - | 4.42 | 218,949 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,970 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,453 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,369 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,871 |
| Fish by Picture #1 | 0 | - | 4.41 | 109,016 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,806 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,461 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,319 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,522 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 63,646 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,175 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,751 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,806 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,887 |
| Name that Bug | 0 | - | 4.12 | 45,623 |
| Fish by Picture #2 | 0 | - | 4.09 | 18,731 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,586 |
| Empires by Maps | 0 | - | 4.98 | 121,647 |
| Merged Company Logos #1 | 0 | - | 4.90 | 107,125 |
| Animals of Australia | 0 | - | 4.52 | 42,460 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,468 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,368 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 105,197 |
| Play-Doh People from History | 0 | - | 4.99 | 95,426 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,499 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,906 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,984 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 206,589 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,004 |
| All Country Flags of the World | 0 | - | 5.00 | 3,706,034 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,544,460 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,096,481 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,989 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,964 |
| Flags with Crescents | 0 | - | 4.98 | 171,115 |
| Country Flag Trivia | 0 | - | 4.81 | 57,863 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,736 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,285 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,402 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,828 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,860 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,392 |
| Real vs. Fake Flags | 0 | - | 4.98 | 125,548 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 183,505 |
| National Football Team Logos | 0 | - | 4.85 | 181,576 |
| Movies with Animals in the Title #1 | 0 | - | 4.20 | 184,036 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,759 |
| National Animals | 0 | - | 4.24 | 90,189 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,192 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,481 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,488 |
| Years in History by Picture | 0 | - | 4.44 | 35,729 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,331 |
| Flags to Languages | 0 | - | 4.95 | 174,385 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.19 | 72,439 |
| Merged Company Logos #2 | 0 | - | 4.75 | 78,042 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,960 |
| Disney Animals | 0 | - | 4.27 | 240,587 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,584 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,778 |
| Fruits by Picture | 0 | - | 4.19 | 808,928 |
| Old Movies by Picture | 0 | - | 4.51 | 25,234 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,269 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 339,011 |
| Geography by Picture - B | 0 | - | 4.42 | 55,753 |
| Geography by Picture - H | 0 | - | 4.50 | 58,356 |
| Geography by Picture - N | 0 | - | 4.45 | 42,325 |
| Geography by Picture - R | 0 | - | 4.56 | 41,127 |
| Geography by Picture - T | 0 | - | 4.54 | 57,977 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,380 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 543,353 |
| Random Logos Quiz | 0 | - | 4.33 | 209,233 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 116,136 |
| Pictures by Letter - A | 0 | - | 4.18 | 33,618 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,250 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,225 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,778 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,979 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,660 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,492 |
| Animals in World History | 0 | - | 4.74 | 44,653 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 113,056 |
| Animals in the Bible | 0 | - | 4.83 | 36,991 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,850 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,487 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,230 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,945 |
| Elements by Picture | 0 | - | 4.27 | 70,274 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,495 |
| Islands by Picture | 0 | - | 4.28 | 107,663 |
| Name that Object #1 | 0 | - | 3.57 | 96,589 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,429 |
| WWII Figures by Picture | 0 | - | 4.89 | 66,147 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,569 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,493 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,181 |
| International Footballers by Picture | 0 | - | 4.51 | 56,303 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 285,806 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 108,429 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 51,130 |
| Geography by Picture - A | 0 | - | 4.39 | 60,408 |
| Geography by Picture - D | 0 | - | 4.15 | 45,768 |
| Geography by Picture - F | 0 | - | 4.31 | 51,150 |
| Geography by Picture - G | 0 | - | 4.39 | 48,061 |
| Geography by Picture - J | 0 | - | 4.16 | 38,573 |
| Geography by Picture - K | 0 | - | 4.29 | 33,230 |
| Geography by Picture - C | 0 | - | 4.31 | 57,211 |
| Geography by Picture - L | 0 | - | 4.37 | 59,109 |
| Geography by Picture - M | 0 | - | 4.14 | 40,562 |
| Geography by Picture - P | 0 | - | 4.24 | 42,543 |
| Geography by Picture - S | 0 | - | 4.38 | 47,160 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,862 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,310 |
| Flag Maths | 0 | - | 4.61 | 57,824 |
| Satellite Images #1 | 0 | - | 4.47 | 129,915 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,607 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,165 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,790 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,183 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,170 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,493 |
| Soccer Team Logos | 0 | - | 4.26 | 377,152 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,435,972 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 263,573 |
| Video Game Logos Quiz | 0 | - | 4.40 | 184,832 |
| Movie Logos | 0 | - | 4.33 | 240,084 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,045 |
| History by Picture - A | 0 | - | 4.26 | 46,100 |
| History by Picture - B | 0 | - | 4.40 | 49,290 |
| History by Picture - C | 0 | - | 4.33 | 54,816 |
| History by Picture - F | 0 | - | 4.35 | 38,143 |
| History by Picture - G | 0 | - | 4.40 | 42,380 |
| History by Picture - D | 0 | - | 4.29 | 44,604 |
| History by Picture - E | 0 | - | 4.25 | 44,182 |
| History by Picture - H | 0 | - | 4.37 | 37,032 |
| History by Picture - K | 0 | - | 4.35 | 33,568 |
| History by Picture - M | 0 | - | 4.17 | 36,353 |
| History by Picture - N | 0 | - | 4.40 | 41,487 |
| History by Picture - O | 0 | - | 4.39 | 36,517 |
| History by Picture - T | 0 | - | 4.20 | 33,503 |
| Name that Nut, Seed, or Bean | 0 | - | 4.57 | 57,603 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,136 |
| Animal Populations of Countries | 0 | - | 4.52 | 44,029 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,801 |
| Top 15 Countries with the Most Cows | 0 | - | 4.74 | 107,463 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,315 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,678 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,654 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,745 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,800 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,666 |
| Flowers by Picture | 0 | - | 4.46 | 105,835 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,935 |
| Name that Object #2 | 0 | - | 3.63 | 15,510 |
| Authors by Picture | 0 | - | 4.48 | 25,618 |
| Name that Object #3 | 0 | - | 3.93 | 14,451 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 90,790 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 56,118 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,296 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 66,442 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 59,257 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 165,729 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,706 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,632 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,343 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 72,067 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.14 | 79,724 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,775 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 96,019 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,330 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 240,473 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 159,922 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 93,933 |
| Musicians by Picture #1 | 0 | - | 4.38 | 109,851 |
| Musicians by Picture #2 | 0 | - | 4.29 | 77,256 |
| Musicians by Picture #4 | 0 | - | 4.07 | 65,494 |
| Musicians by Picture #3 | 0 | - | 4.10 | 59,468 |
| Emoji Flags | 0 | - | 4.35 | 44,261 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,572 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 38,190 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,566 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,604 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,897 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 71,187 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,919 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 395,514 |
| Airline Logos | 0 | - | 4.45 | 141,335 |
| Fast Food Logos Quiz | 0 | - | 4.45 | 249,312 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 159,798 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,430 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,173 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,535 |
| Brand Logos That Start With D | 0 | - | 4.36 | 62,102 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,806 |
| Brand Logos That Start With C | 0 | - | 4.20 | 50,057 |
