| Birds by Picture #2 | 0 | - | 4.33 | 36,539 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,335 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,048 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 63,403 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,617 |
| Animals by Close-up Image | 0 | - | 4.42 | 218,623 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,806 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,352 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,071 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,693 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,662 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,642 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,300 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,216 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,371 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,684 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,756 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,848 |
| Name that Bug | 0 | - | 4.12 | 45,594 |
| Fish by Picture #2 | 0 | - | 4.07 | 18,621 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,187 |
| Empires by Maps | 0 | - | 4.98 | 121,040 |
| Merged Company Logos #1 | 0 | - | 4.90 | 106,848 |
| Animals of Australia | 0 | - | 4.52 | 42,382 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,370 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,325 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 104,760 |
| Play-Doh People from History | 0 | - | 4.99 | 95,111 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,273 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,656 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,742 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 206,390 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,789 |
| All Country Flags of the World | 0 | - | 5.00 | 3,684,113 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,540,807 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,626 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,631 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,732 |
| Flags with Crescents | 0 | - | 4.98 | 170,399 |
| Country Flag Trivia | 0 | - | 4.81 | 57,440 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,217 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,886 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,875 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,532 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,530 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 60,714 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,098 |
| Real vs. Fake Flags | 0 | - | 4.98 | 124,868 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 182,043 |
| National Football Team Logos | 0 | - | 4.85 | 180,921 |
| Movies with Animals in the Title #1 | 0 | - | 4.20 | 183,859 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,649 |
| National Animals | 0 | - | 4.24 | 89,790 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,006 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,321 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,331 |
| Years in History by Picture | 0 | - | 4.44 | 35,632 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,125 |
| Flags to Languages | 0 | - | 4.95 | 173,972 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.19 | 72,185 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,808 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,735 |
| Disney Animals | 0 | - | 4.27 | 240,209 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,413 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,652 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,367 |
| Fruits by Picture | 0 | - | 4.19 | 808,132 |
| Old Movies by Picture | 0 | - | 4.51 | 25,158 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,148 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 338,258 |
| Geography by Picture - B | 0 | - | 4.42 | 55,685 |
| Geography by Picture - H | 0 | - | 4.50 | 58,291 |
| Geography by Picture - N | 0 | - | 4.45 | 42,261 |
| Geography by Picture - R | 0 | - | 4.56 | 41,080 |
| Geography by Picture - T | 0 | - | 4.54 | 57,911 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,199 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 541,236 |
| Random Logos Quiz | 0 | - | 4.33 | 208,845 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 115,650 |
| Pictures by Letter - A | 0 | - | 4.18 | 33,523 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,153 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,096 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,693 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,892 |
| Animals in the Bible | 0 | - | 4.83 | 36,806 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,802 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,296 |
| Animals in World History | 0 | - | 4.74 | 44,591 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,692 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,427 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,070 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,787 |
| Elements by Picture | 0 | - | 4.27 | 70,109 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,396 |
| Islands by Picture | 0 | - | 4.28 | 107,307 |
| Name that Object #1 | 0 | - | 3.57 | 96,542 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,345 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,829 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,168 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,381 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,102 |
| International Footballers by Picture | 0 | - | 4.51 | 55,956 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 285,174 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 108,056 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 50,979 |
| Geography by Picture - A | 0 | - | 4.39 | 60,333 |
| Geography by Picture - D | 0 | - | 4.15 | 45,715 |
| Geography by Picture - F | 0 | - | 4.31 | 51,080 |
| Geography by Picture - G | 0 | - | 4.39 | 48,010 |
| Geography by Picture - J | 0 | - | 4.16 | 38,519 |
| Geography by Picture - K | 0 | - | 4.29 | 33,180 |
| Geography by Picture - C | 0 | - | 4.31 | 57,140 |
| Geography by Picture - L | 0 | - | 4.37 | 59,052 |
| Geography by Picture - M | 0 | - | 4.14 | 40,513 |
| Geography by Picture - P | 0 | - | 4.24 | 42,491 |
| Geography by Picture - S | 0 | - | 4.38 | 47,096 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,130 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,897 |
| Flag Maths | 0 | - | 4.64 | 57,797 |
| Satellite Images #1 | 0 | - | 4.47 | 129,501 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,420 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,004 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,740 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,025 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,053 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,224 |
| Soccer Team Logos | 0 | - | 4.26 | 375,827 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,429,632 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 262,769 |
| Video Game Logos Quiz | 0 | - | 4.40 | 184,439 |
| Movie Logos | 0 | - | 4.33 | 239,273 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,707 |
| History by Picture - A | 0 | - | 4.26 | 45,965 |
| History by Picture - B | 0 | - | 4.40 | 49,143 |
| History by Picture - C | 0 | - | 4.36 | 54,662 |
| History by Picture - F | 0 | - | 4.35 | 38,017 |
| History by Picture - G | 0 | - | 4.40 | 42,269 |
| History by Picture - D | 0 | - | 4.29 | 44,461 |
| History by Picture - E | 0 | - | 4.25 | 44,068 |
| History by Picture - H | 0 | - | 4.37 | 36,912 |
| History by Picture - K | 0 | - | 4.35 | 33,467 |
| History by Picture - M | 0 | - | 4.17 | 36,244 |
| History by Picture - N | 0 | - | 4.40 | 41,379 |
| History by Picture - O | 0 | - | 4.39 | 36,415 |
| History by Picture - T | 0 | - | 4.20 | 33,409 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,447 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,051 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,944 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,743 |
| Top 15 Countries with the Most Cows | 0 | - | 4.73 | 107,342 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,205 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,538 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,535 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,517 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,583 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,310 |
| Flowers by Picture | 0 | - | 4.46 | 105,745 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,854 |
| Name that Object #2 | 0 | - | 3.64 | 15,472 |
| Authors by Picture | 0 | - | 4.48 | 25,573 |
| Name that Object #3 | 0 | - | 3.93 | 14,427 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 90,417 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,965 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,065 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 66,208 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 59,053 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 165,389 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,577 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,538 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,262 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,886 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.14 | 79,571 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,605 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 95,804 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,245 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 239,922 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 159,548 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 93,647 |
| Musicians by Picture #1 | 0 | - | 4.37 | 109,348 |
| Musicians by Picture #2 | 0 | - | 4.29 | 76,863 |
| Musicians by Picture #4 | 0 | - | 4.07 | 65,227 |
| Musicians by Picture #3 | 0 | - | 4.10 | 59,245 |
| Emoji Flags | 0 | - | 4.35 | 44,169 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,051 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 38,027 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,259 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,461 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,660 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,964 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,866 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 395,036 |
| Airline Logos | 0 | - | 4.45 | 141,053 |
| Fast Food Logos Quiz | 0 | - | 4.45 | 248,868 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 159,432 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,148 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,926 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,287 |
| Brand Logos That Start With D | 0 | - | 4.35 | 61,832 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,480 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,878 |
