| Birds by Picture #2 | 0 | - | 4.33 | 35,945 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,843 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,403 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,299 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,842 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,578 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,237 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,914 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,104 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,086 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,906 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,766 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,899 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,865 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,590 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,986 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,739 |
| Name that Bug | 0 | - | 4.12 | 45,450 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,447 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,400 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,549 |
| Empires by Maps | 0 | - | 4.98 | 118,506 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,434 |
| Animals of Australia | 0 | - | 4.52 | 42,153 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,993 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,228 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,774 |
| Play-Doh People from History | 0 | - | 4.99 | 93,858 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,305 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,740 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,501 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,032 |
| All Country Flags of the World | 0 | - | 5.00 | 3,602,122 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,343 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,401 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,666 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,811 |
| Flags with Crescents | 0 | - | 4.98 | 167,558 |
| Country Flag Trivia | 0 | - | 4.81 | 55,935 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,419 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,454 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,909 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,461 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,379 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,034 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,571 |
| National Football Team Logos | 0 | - | 4.84 | 178,660 |
| Movies with Animals in the Title #1 | 0 | - | 4.21 | 183,047 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,007 |
| National Animals | 0 | - | 4.24 | 89,152 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,608 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,311 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,415 |
| Years in History by Picture | 0 | - | 4.44 | 35,107 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,229 |
| Flags to Languages | 0 | - | 4.95 | 172,486 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.20 | 71,245 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,756 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,154 |
| Disney Animals | 0 | - | 4.27 | 238,636 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,402 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,207 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,269 |
| Fruits by Picture | 0 | - | 4.20 | 804,639 |
| Old Movies by Picture | 0 | - | 4.51 | 24,799 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,683 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,513 |
| Geography by Picture - B | 0 | - | 4.42 | 55,415 |
| Geography by Picture - H | 0 | - | 4.49 | 58,047 |
| Geography by Picture - N | 0 | - | 4.45 | 42,048 |
| Geography by Picture - R | 0 | - | 4.55 | 40,877 |
| Geography by Picture - T | 0 | - | 4.54 | 57,676 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,441 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 532,060 |
| Random Logos Quiz | 0 | - | 4.32 | 207,024 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,284 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,123 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,722 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,615 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,307 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,523 |
| Animals in the Bible | 0 | - | 4.83 | 35,814 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,032 |
| Animals in World History | 0 | - | 4.74 | 44,216 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,489 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,473 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,188 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,627 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,411 |
| Elements by Picture | 0 | - | 4.28 | 69,550 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,158 |
| Islands by Picture | 0 | - | 4.29 | 105,898 |
| Name that Object #1 | 0 | - | 3.56 | 96,303 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,047 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,531 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,643 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,844 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,775 |
| International Footballers by Picture | 0 | - | 4.50 | 54,736 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,630 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,630 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,297 |
| Geography by Picture - A | 0 | - | 4.39 | 60,052 |
| Geography by Picture - D | 0 | - | 4.15 | 45,493 |
| Geography by Picture - F | 0 | - | 4.31 | 50,825 |
| Geography by Picture - G | 0 | - | 4.38 | 47,787 |
| Geography by Picture - J | 0 | - | 4.16 | 38,334 |
| Geography by Picture - K | 0 | - | 4.28 | 33,015 |
| Geography by Picture - C | 0 | - | 4.31 | 56,908 |
| Geography by Picture - L | 0 | - | 4.37 | 58,761 |
| Geography by Picture - M | 0 | - | 4.14 | 40,346 |
| Geography by Picture - P | 0 | - | 4.24 | 42,298 |
| Geography by Picture - S | 0 | - | 4.38 | 46,909 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,369 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,461 |
| Flag Maths | 0 | - | 4.78 | 57,676 |
| Satellite Images #1 | 0 | - | 4.46 | 129,007 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,985 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,651 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,568 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,649 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,808 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,360 |
| Soccer Team Logos | 0 | - | 4.26 | 370,807 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,402,046 |
| Ultimate Car Logos Quiz | 0 | - | 4.79 | 176,245 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,248 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,658 |
| Movie Logos | 0 | - | 4.33 | 235,897 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,766 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,194 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,260 |
| History by Picture - A | 0 | - | 4.25 | 45,462 |
| History by Picture - B | 0 | - | 4.40 | 48,586 |
| History by Picture - C | 0 | - | 4.36 | 54,084 |
| History by Picture - F | 0 | - | 4.35 | 37,583 |
| History by Picture - G | 0 | - | 4.40 | 41,851 |
| History by Picture - D | 0 | - | 4.29 | 44,011 |
| History by Picture - E | 0 | - | 4.27 | 43,627 |
| History by Picture - H | 0 | - | 4.37 | 36,545 |
| History by Picture - K | 0 | - | 4.35 | 33,104 |
| History by Picture - M | 0 | - | 4.17 | 35,915 |
| History by Picture - N | 0 | - | 4.40 | 41,001 |
| History by Picture - O | 0 | - | 4.39 | 36,041 |
| History by Picture - T | 0 | - | 4.20 | 33,099 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,846 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,617 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,602 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,515 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,772 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,793 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,854 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,152 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,471 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,656 |
| Musical Instruments by Picture #1 | 0 | - | 4.53 | 267,915 |
| Flowers by Picture | 0 | - | 4.46 | 105,011 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,532 |
| Name that Object #2 | 0 | - | 3.64 | 15,322 |
| Authors by Picture | 0 | - | 4.48 | 25,392 |
| Name that Object #3 | 0 | - | 3.93 | 14,303 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 79,469 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,065 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,190 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,367 |
| Songs by Picture Quiz #2 | 0 | - | 4.41 | 58,412 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 164,442 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,019 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,133 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 50,926 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,255 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.13 | 78,997 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 71,941 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 94,596 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 45,927 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 237,657 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 158,037 |
| Name that Historical Figure #6 | 0 | - | 4.27 | 92,429 |
| Musicians by Picture #1 | 0 | - | 4.39 | 107,138 |
| Musicians by Picture #2 | 0 | - | 4.29 | 75,296 |
| Musicians by Picture #4 | 0 | - | 4.07 | 64,052 |
| Musicians by Picture #3 | 0 | - | 4.10 | 58,332 |
| Emoji Flags | 0 | - | 4.35 | 43,815 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,906 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.64 | 37,469 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,144 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,242 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 65,744 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,104 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,672 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 393,010 |
| Airline Logos | 0 | - | 4.45 | 139,948 |
| Fast Food Logos Quiz | 0 | - | 4.43 | 246,936 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 157,819 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,711 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,667 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,187 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,011 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,279 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,915 |
