| Animals by Skeleton Image | 0 | - | 4.81 | 46,721 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,678 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,641 |
| Name that Bug | 0 | - | 4.12 | 45,597 |
| Animals by Close-up Image | 0 | - | 4.42 | 218,667 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,831 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,364 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,099 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,027 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,340 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,349 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,664 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,321 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,220 |
| Fish by Picture #2 | 0 | - | 4.09 | 18,628 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,385 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,434 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,668 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,331 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,810 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,340 |
| Animals in World History | 0 | - | 4.74 | 44,606 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,722 |
| Top Countries for Shark Attacks | 0 | - | 4.47 | 45,875 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,759 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,065 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,959 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,747 |
| Top 15 Countries with the Most Cows | 0 | - | 4.73 | 107,368 |
| Flowers by Picture | 0 | - | 4.46 | 105,756 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,254 |
| Empires by Maps | 0 | - | 4.98 | 121,132 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,862 |
| Merged Company Logos #1 | 0 | - | 4.90 | 106,885 |
| Countries with More Cows than People | 0 | - | 4.46 | 61,494 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,943 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,627 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,383 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 104,832 |
| Play-Doh People from History | 0 | - | 4.99 | 95,152 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,307 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,700 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,792 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,819 |
| All Country Flags of the World | 0 | - | 5.00 | 3,687,136 |
| Name the Cat Flags | 0 | - | 5.00 | 40,438 |
| Extinct Animals | 0 | - | 4.16 | 27,539 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,433 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,281 |
| Animals in the News | 0 | - | 4.37 | 26,813 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,445 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 69,135 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,330 |
| Megadiverse Countries | 0 | - | 4.96 | 135,083 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,693 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,553 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,350 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,541,301 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,864 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,798 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,918 |
| Old World... or New World? | 0 | - | 4.66 | 21,386 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,601 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,772 |
| Flags with Crescents | 0 | - | 4.98 | 170,506 |
| Country Flag Trivia | 0 | - | 4.81 | 57,513 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,299 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,928 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,950 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,565 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,589 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 60,751 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,145 |
| Real vs. Fake Flags | 0 | - | 4.98 | 124,977 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,853 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 182,253 |
| National Football Team Logos | 0 | - | 4.85 | 181,010 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,289 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,784 |
| Animals - Taxonomy to Common Name | 0 | - | 4.81 | 28,360 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,929 |
| Countries with Fjords | 0 | - | 4.94 | 101,101 |
| Years in History by Picture | 0 | - | 4.44 | 35,648 |
| Where Are These Doors? | 0 | - | 4.45 | 30,103 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,145 |
| Flags to Languages | 0 | - | 4.95 | 174,030 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,838 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,768 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,063 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 63,429 |
| Terrestrial Biomes - Map Quiz | 0 | - | 4.99 | 21,501 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,409 |
| Fruits by Picture | 0 | - | 4.19 | 808,246 |
| Old Movies by Picture | 0 | - | 4.51 | 25,161 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,171 |
| Star Wars Original Trilogy Characters by Picture | 0 | - | 4.91 | 49,730 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 206,413 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 338,367 |
| Geography by Picture - B | 0 | - | 4.42 | 55,695 |
| Geography by Picture - H | 0 | - | 4.50 | 58,300 |
| Geography by Picture - N | 0 | - | 4.45 | 42,269 |
| Geography by Picture - R | 0 | - | 4.56 | 41,085 |
| Geography by Picture - T | 0 | - | 4.54 | 57,916 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,223 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 541,570 |
| Random Logos Quiz | 0 | - | 4.33 | 208,910 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 115,722 |
| Pictures by Letter - A | 0 | - | 4.18 | 33,529 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,158 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,112 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,702 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,898 |
| Largest Land Animals of Asia | 0 | - | 3.64 | 8,317 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,764 |
| Countries with the Most Lakes Over 100 Km² | 0 | - | 4.83 | 32,486 |
| Countries With No Rivers | 0 | - | 4.96 | 76,967 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,370 |
| Rivers in History | 0 | - | 4.92 | 33,360 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,097 |
| North Sea Countries | 0 | - | 4.92 | 87,532 |
| Black Sea Countries | 0 | - | 4.87 | 60,673 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,479 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,578 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,304 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,436 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,088 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,803 |
| Elements by Picture | 0 | - | 4.27 | 70,125 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,398 |
| Islands by Picture | 0 | - | 4.28 | 107,355 |
| Name that Object #1 | 0 | - | 3.57 | 96,549 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,358 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,888 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,219 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,394 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,113 |
| International Footballers by Picture | 0 | - | 4.51 | 55,999 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 285,260 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 108,106 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 51,001 |
| Geography by Picture - A | 0 | - | 4.39 | 60,342 |
| Geography by Picture - D | 0 | - | 4.15 | 45,722 |
| Geography by Picture - F | 0 | - | 4.31 | 51,092 |
| Geography by Picture - G | 0 | - | 4.39 | 48,021 |
| Geography by Picture - J | 0 | - | 4.16 | 38,527 |
| Geography by Picture - K | 0 | - | 4.29 | 33,186 |
| Geography by Picture - C | 0 | - | 4.31 | 57,149 |
| Geography by Picture - L | 0 | - | 4.37 | 59,063 |
| Geography by Picture - M | 0 | - | 4.14 | 40,520 |
| Geography by Picture - P | 0 | - | 4.24 | 42,500 |
| Geography by Picture - S | 0 | - | 4.38 | 47,109 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,221 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,957 |
| Flag Maths | 0 | - | 4.64 | 57,801 |
| Satellite Images #1 | 0 | - | 4.47 | 129,516 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,434 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,017 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,040 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,058 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,252 |
| Soccer Team Logos | 0 | - | 4.26 | 376,001 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,430,512 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 262,910 |
| Video Game Logos Quiz | 0 | - | 4.40 | 184,488 |
| Movie Logos | 0 | - | 4.33 | 239,390 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,752 |
| History by Picture - A | 0 | - | 4.26 | 45,985 |
| History by Picture - B | 0 | - | 4.40 | 49,168 |
| History by Picture - C | 0 | - | 4.36 | 54,693 |
| History by Picture - F | 0 | - | 4.35 | 38,046 |
| History by Picture - G | 0 | - | 4.40 | 42,287 |
| History by Picture - D | 0 | - | 4.29 | 44,486 |
| History by Picture - E | 0 | - | 4.25 | 44,090 |
| History by Picture - H | 0 | - | 4.37 | 36,932 |
| History by Picture - K | 0 | - | 4.35 | 33,490 |
| History by Picture - M | 0 | - | 4.17 | 36,262 |
| History by Picture - N | 0 | - | 4.40 | 41,399 |
| History by Picture - O | 0 | - | 4.39 | 36,435 |
| History by Picture - T | 0 | - | 4.20 | 33,426 |
| Name that Nut, Seed, or Bean | 0 | - | 4.57 | 57,472 |
| Movies by Screenshot | 0 | - | 4.45 | 91,437 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,773 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,570 |
| Words Containing Animals #2 | 0 | - | 4.09 | 34,468 |
| Animal Adjectives | 0 | - | 4.77 | 60,105 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 64,231 |
| Bird in the Answers | 0 | - | 4.11 | 33,840 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,215 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,564 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,853 |
| African Great Lakes | 0 | - | 4.82 | 66,626 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,641 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,694 |
| Nile River Basin Countries on a Map | 0 | - | 4.95 | 50,800 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,174 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,497 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,716 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,621 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,555 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,621 |
