| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,846 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,990 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,630 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,243 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,920 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,110 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,616 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,316 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,419 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,091 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,912 |
| 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 | 57,871 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,213 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,409 |
| Animals in World History | 0 | - | 4.74 | 44,219 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,474 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,038 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,495 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,592 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,571 |
| Empires by Maps | 0 | - | 4.98 | 118,524 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,447 |
| 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 | 92,775 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,404 |
| Flowers by Picture | 0 | - | 4.46 | 105,013 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,118 |
| Countries with More Cows than People | 0 | - | 4.43 | 54,645 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,628 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,503 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,994 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,784 |
| Play-Doh People from History | 0 | - | 4.99 | 93,864 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,317 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,746 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 48,899 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,039 |
| All Country Flags of the World | 0 | - | 5.00 | 3,602,923 |
| Extinct Animals | 0 | - | 4.18 | 27,406 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,207 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,209 |
| Animals in the News | 0 | - | 4.37 | 26,718 |
| Countries with Wild Lions | 0 | - | 4.77 | 25,982 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,252 |
| Megadiverse Countries | 0 | - | 4.97 | 133,907 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,485 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,465 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,706 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,676 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,949 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,849 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,615 |
| Old World... or New World? | 0 | - | 4.66 | 21,206 |
| Years in History by Picture | 0 | - | 4.44 | 35,113 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,819 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,237 |
| Flags with Crescents | 0 | - | 4.98 | 167,584 |
| Country Flag Trivia | 0 | - | 4.81 | 55,947 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,431 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,463 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,924 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,473 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,387 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 59,916 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,049 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,584 |
| National Football Team Logos | 0 | - | 4.84 | 178,691 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,764 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,194 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,692 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,678 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,381 |
| Countries with Fjords | 0 | - | 4.93 | 100,211 |
| Name that Object #1 | 0 | - | 3.56 | 96,307 |
| Flags to Languages | 0 | - | 4.95 | 172,500 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,739 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,154 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,409 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,310 |
| Fruits by Picture | 0 | - | 4.20 | 804,678 |
| Old Movies by Picture | 0 | - | 4.51 | 24,805 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,685 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,450 |
| 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 |
| Random Logos Quiz | 0 | - | 4.32 | 207,039 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,293 |
| 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 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,279 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,538 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,454 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 532,170 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,258 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,299 |
| Countries With No Rivers | 0 | - | 4.96 | 76,035 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,251 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,743 |
| North Sea Countries | 0 | - | 4.92 | 86,608 |
| Black Sea Countries | 0 | - | 4.87 | 60,342 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,019 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,116 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,200 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,957 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,190 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,630 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,415 |
| Elements by Picture | 0 | - | 4.28 | 69,555 |
| Name that Object #2 | 0 | - | 3.64 | 15,326 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,162 |
| Islands by Picture | 0 | - | 4.29 | 105,908 |
| Name that Object #3 | 0 | - | 3.93 | 14,306 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,049 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,667 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,848 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,509 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,777 |
| International Footballers by Picture | 0 | - | 4.50 | 54,758 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,661 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,645 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,301 |
| Geography by Picture - A | 0 | - | 4.39 | 60,055 |
| Geography by Picture - D | 0 | - | 4.15 | 45,496 |
| 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 | 46,912 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,394 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,480 |
| Flag Maths | 0 | - | 4.78 | 57,676 |
| Satellite Images #1 | 0 | - | 4.46 | 129,016 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,990 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,655 |
| 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 | 85,373 |
| Soccer Team Logos | 0 | - | 4.26 | 370,861 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,402,416 |
| Ultimate Car Logos Quiz | 0 | - | 4.79 | 176,306 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,284 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,676 |
| Movie Logos | 0 | - | 4.33 | 235,932 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,778 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,201 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,276 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,281 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,918 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,335 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,809 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,298 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,111 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,587 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,924 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,182 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,324 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,870 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,615 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,478 |
| 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 | 37,588 |
| 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 | 36,547 |
| History by Picture - K | 0 | - | 4.35 | 33,109 |
| 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 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,633 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,387 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,352 |
| Animal Adjectives | 0 | - | 4.77 | 59,832 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,098 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,587 |
| Bird in the Answers | 0 | - | 4.10 | 33,285 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,107 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,338 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,233 |
| African Great Lakes | 0 | - | 4.82 | 65,174 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,715 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,918 |
