| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,250 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,552 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,518 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,143 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,611 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,192 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,775 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,820 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,422 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,306 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,030 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,070 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,498 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,141 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,729 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,859 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,860 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,257 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,086 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,634 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,622 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,988 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,675 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,802 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,829 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,785 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,897 |
| Name that Bug | 0 | - | 4.12 | 45,531 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,474 |
| Empires by Maps | 0 | - | 4.98 | 119,863 |
| Fish by Picture #2 | 0 | - | 4.06 | 18,518 |
| Merged Company Logos #1 | 0 | - | 4.90 | 106,203 |
| Animals of Australia | 0 | - | 4.52 | 42,277 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,164 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,795 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,561 |
| All Country Flags of the World | 0 | - | 5.00 | 3,644,752 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,334 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,228 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,295 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,177 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,284 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,864 |
| Play-Doh People from History | 0 | - | 4.99 | 94,551 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,822 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,176 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,353 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,408 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,533,894 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,091,248 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 732,327 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,906 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,317 |
| Flags with Crescents | 0 | - | 4.98 | 168,946 |
| Country Flag Trivia | 0 | - | 4.81 | 56,705 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,334 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,184 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 86,951 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,058 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,965 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 60,335 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,562 |
| Real vs. Fake Flags | 0 | - | 4.98 | 123,703 |
| National Football Team Logos | 0 | - | 4.85 | 179,886 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,776 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,738 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,780 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,659 |
| Years in History by Picture | 0 | - | 4.44 | 35,418 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,711 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,319 |
| National Animals | 0 | - | 4.24 | 89,582 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,559 |
| Flags to Languages | 0 | - | 4.95 | 173,316 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.20 | 71,738 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,366 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,451 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 14,438 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,520 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,370 |
| Countries with Glaciers | 0 | - | 4.97 | 104,994 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,830 |
| Fruits by Picture | 0 | - | 4.19 | 806,501 |
| Old Movies by Picture | 0 | - | 4.51 | 25,040 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,922 |
| Name that Object #1 | 0 | - | 3.57 | 96,457 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,959 |
| Geography by Picture - B | 0 | - | 4.42 | 55,550 |
| Geography by Picture - H | 0 | - | 4.50 | 58,171 |
| Geography by Picture - N | 0 | - | 4.45 | 42,160 |
| Geography by Picture - R | 0 | - | 4.56 | 40,977 |
| Geography by Picture - T | 0 | - | 4.54 | 57,789 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,844 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 537,119 |
| Random Logos Quiz | 0 | - | 4.31 | 208,058 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 114,634 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,339 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,962 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,880 |
| Pictures by Letter - D | 0 | - | 4.13 | 37,525 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,733 |
| Largest Land Animals of Asia | 0 | - | 3.64 | 8,290 |
| Animals in World History | 0 | - | 4.74 | 44,418 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,578 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,298 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,855 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,597 |
| Elements by Picture | 0 | - | 4.27 | 69,817 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,268 |
| Islands by Picture | 0 | - | 4.29 | 106,656 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,208 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,468 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,098 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,987 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,938 |
| International Footballers by Picture | 0 | - | 4.50 | 55,349 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 284,049 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,384 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 50,678 |
| Geography by Picture - A | 0 | - | 4.39 | 60,186 |
| Geography by Picture - D | 0 | - | 4.15 | 45,603 |
| Geography by Picture - F | 0 | - | 4.31 | 50,937 |
| Geography by Picture - G | 0 | - | 4.38 | 47,905 |
| Geography by Picture - J | 0 | - | 4.16 | 38,424 |
| Geography by Picture - K | 0 | - | 4.29 | 33,089 |
| Geography by Picture - C | 0 | - | 4.31 | 57,026 |
| Geography by Picture - L | 0 | - | 4.37 | 58,895 |
| Geography by Picture - M | 0 | - | 4.14 | 40,414 |
| Geography by Picture - P | 0 | - | 4.24 | 42,391 |
| Geography by Picture - S | 0 | - | 4.38 | 47,002 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,849 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,236 |
| Flag Maths | 0 | - | 4.64 | 57,739 |
| Satellite Images #1 | 0 | - | 4.46 | 129,269 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,223 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,842 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,664 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,839 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,921 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,802 |
| Soccer Team Logos | 0 | - | 4.26 | 373,455 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,416,616 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 179,186 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 261,177 |
| Video Game Logos Quiz | 0 | - | 4.40 | 183,610 |
| Movie Logos | 0 | - | 4.33 | 237,729 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,489 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,019 |
| History by Picture - A | 0 | - | 4.26 | 45,720 |
| History by Picture - B | 0 | - | 4.40 | 48,868 |
| History by Picture - C | 0 | - | 4.36 | 54,393 |
| History by Picture - F | 0 | - | 4.35 | 37,820 |
| History by Picture - G | 0 | - | 4.40 | 42,081 |
| History by Picture - D | 0 | - | 4.29 | 44,251 |
| History by Picture - E | 0 | - | 4.27 | 43,859 |
| History by Picture - H | 0 | - | 4.37 | 36,737 |
| History by Picture - K | 0 | - | 4.35 | 33,310 |
| History by Picture - M | 0 | - | 4.17 | 36,101 |
| History by Picture - N | 0 | - | 4.40 | 41,200 |
| History by Picture - O | 0 | - | 4.39 | 36,259 |
| History by Picture - T | 0 | - | 4.20 | 33,269 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,151 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,200 |
| Animal Adjectives | 0 | - | 4.77 | 59,958 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,646 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,414 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,185 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,559 |
| African Great Lakes | 0 | - | 4.82 | 65,977 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,905 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,124 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 268,643 |
| Flowers by Picture | 0 | - | 4.46 | 105,560 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,677 |
| Name that Object #2 | 0 | - | 3.64 | 15,422 |
| Authors by Picture | 0 | - | 4.48 | 25,503 |
| Name that Object #3 | 0 | - | 3.93 | 14,379 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 80,051 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,023 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,590 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,616 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,799 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 58,747 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 165,038 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,296 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,336 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,105 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,571 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.13 | 79,273 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,251 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 95,082 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,085 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 238,938 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 158,844 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 93,091 |
| Musicians by Picture #1 | 0 | - | 4.39 | 108,321 |
| Musicians by Picture #2 | 0 | - | 4.29 | 76,124 |
| Musicians by Picture #4 | 0 | - | 4.07 | 64,671 |
| Musicians by Picture #3 | 0 | - | 4.10 | 58,810 |
| Emoji Flags | 0 | - | 4.35 | 43,993 |
