| Countries With The Most Bird Species | 0 | - | 4.91 | 19,146 |
| Birds by Picture #2 | 0 | - | 4.27 | 29,906 |
| Birds by Picture #3 | 0 | - | 4.16 | 27,779 |
| Mammals by Picture #3 | 0 | - | 4.41 | 54,994 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 39,149 |
| Mammals by Picture #1 | 0 | - | 4.76 | 81,461 |
| Animals by Close-up Image | 0 | - | 4.40 | 202,663 |
| Animals A-Z by Picture | 0 | - | 4.14 | 58,751 |
| Extinct Animals by Picture | 0 | - | 4.46 | 30,440 |
| Mammals by Picture #2 | 0 | - | 4.30 | 52,230 |
| Fish by Picture #1 | 0 | - | 4.39 | 101,811 |
| Mammals by Picture #4 | 0 | - | 4.03 | 30,417 |
| Sea Creatures by Picture | 0 | - | 4.26 | 16,004 |
| Animals by Skeleton Image | 0 | - | 4.79 | 37,901 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.54 | 23,388 |
| Name that Bug | 0 | - | 4.11 | 43,937 |
| Australian Animals By Picture | 0 | - | 4.44 | 29,038 |
| Fish by Picture #2 | 0 | - | 4.06 | 16,139 |
| Former Countries by Territory Map | 0 | - | 4.96 | 84,887 |
| Empires by Maps | 0 | - | 4.98 | 92,861 |
| Animals of Australia | 0 | - | 4.51 | 39,668 |
| Islands by Shape #2 | 0 | - | 4.87 | 44,783 |
| Reptile Picture Quiz | 0 | - | 4.26 | 13,046 |
| Dog Breed Picture Quiz | 0 | - | 4.32 | 194,917 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 53,252 |
| Animals in World History | 0 | - | 4.82 | 39,690 |
| All Country Flags of the World | 0 | - | 5.00 | 2,925,692 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,351,881 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 995,288 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 666,978 |
| Make a Stained Glass Window | 0 | - | 4.99 | 58,391 |
| Flags with Crescents | 0 | - | 4.98 | 141,732 |
| Country Flag Trivia | 0 | - | 4.87 | 42,909 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 74,803 |
| Country Flags with the Union Jack | 0 | - | 4.84 | 55,155 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 66,646 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 54,249 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.86 | 62,954 |
| Flag Maths | 0 | - | 4.92 | 49,350 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 41,174 |
| National Soccer Team Logos | 0 | - | 4.83 | 153,319 |
| Movies with Animals in the Title #1 | 0 | - | 4.20 | 174,703 |
| Movies with Animals in the Title #2 | 0 | - | 4.26 | 101,983 |
| National Animals | 0 | - | 4.28 | 83,177 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,385 |
| Countries with Wild Penguins | 0 | - | 4.93 | 89,746 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.89 | 78,189 |
| Famous Foreheads #1 | 0 | - | 4.49 | 65,795 |
| Flags to Languages | 0 | - | 4.95 | 134,491 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.19 | 62,378 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 40,091 |
| Disney Animals | 0 | - | 4.28 | 222,208 |
| Countries with the Most Sheep | 0 | - | 4.89 | 82,218 |
| Fruits by Picture | 0 | - | 4.19 | 729,150 |
| Old Movies by Picture | 0 | - | 4.50 | 21,357 |
| Musical Instruments by Picture #2 | 0 | - | 4.23 | 42,558 |
| Years in History by Picture | 0 | - | 4.43 | 29,747 |
| Classic Movies by Movie Posters | 0 | - | 4.43 | 21,194 |
| Geography by Picture - G | 0 | - | 4.41 | 45,092 |
| Geography by Picture - H | 0 | - | 4.52 | 54,869 |
| Geography by Picture - N | 0 | - | 4.46 | 39,323 |
| Geography by Picture - R | 0 | - | 4.55 | 38,373 |
| Geography by Picture - T | 0 | - | 4.64 | 54,428 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 54,345 |
| Car Logos Quiz #1 | 0 | - | 4.42 | 446,701 |
| Random Logos Quiz | 0 | - | 4.35 | 188,161 |
| All North American Pro Sports Logos | 0 | - | 4.75 | 93,180 |
| Pictures by Letter - J | 0 | - | 4.26 | 35,757 |
| Pictures by Letter - B | 0 | - | 4.30 | 39,040 |
| Pictures by Letter - D | 0 | - | 4.15 | 33,515 |
| Pictures by Letter - M | 0 | - | 4.22 | 33,969 |
| Countries With Two or More Bear Species | 0 | - | 4.89 | 18,592 |
| Countries with the Most Wolves | 0 | - | 4.88 | 78,203 |
| Countries that Catch the Most Fish | 0 | - | 4.88 | 100,505 |
| Islands by Shape #1 | 0 | - | 4.27 | 71,393 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.21 | 52,903 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.19 | 46,329 |
| Elements by Picture | 0 | - | 4.29 | 63,064 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.45 | 26,935 |
| Islands by Picture | 0 | - | 4.31 | 90,376 |
| Name that Object #1 | 0 | - | 3.56 | 94,855 |
| WWII Figures by Picture | 0 | - | 4.87 | 39,573 |
| 1940s Celebrities by Picture | 0 | - | 4.46 | 43,972 |
| Name that Historical Figure #1 | 0 | - | 4.64 | 292,553 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 246,250 |
| Geography by Picture - A | 0 | - | 4.35 | 56,556 |
| Geography by Picture - B | 0 | - | 4.36 | 52,127 |
| Geography by Picture - D | 0 | - | 4.10 | 42,970 |
| Geography by Picture - F | 0 | - | 4.25 | 48,031 |
| Geography by Picture - J | 0 | - | 4.14 | 36,159 |
| Geography by Picture - C | 0 | - | 4.28 | 53,947 |
| Geography by Picture - L | 0 | - | 4.34 | 55,506 |
| Geography by Picture - M | 0 | - | 4.11 | 38,193 |
| Geography by Picture - P | 0 | - | 4.28 | 39,916 |
| Geography by Picture - S | 0 | - | 4.35 | 44,285 |
| Random Flags Quiz | 0 | - | 4.41 | 253,904 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 113,530 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 122,219 |
| Satellite Images Quiz #2 | 0 | - | 4.65 | 103,253 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 83,823 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.29 | 18,136 |
| Satellite Images Quiz #5 | 0 | - | 4.46 | 45,427 |
| Satellite Images Quiz #6 | 0 | - | 4.52 | 35,343 |
| Cities by Picture #1 | 0 | - | 4.66 | 76,377 |
| Soccer Team Logos | 0 | - | 4.22 | 323,237 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,093,453 |
| Ultimate Car Logos Quiz | 0 | - | 4.59 | 119,160 |
| Video Game Logos Quiz | 0 | - | 4.37 | 149,343 |
| Movie Logos | 0 | - | 4.28 | 194,809 |
| Brand Logos That Start With M | 0 | - | 4.41 | 47,157 |
| Brand Logos That Start With B | 0 | - | 4.46 | 47,180 |
| Brand Logos That Start with A | 0 | - | 4.52 | 54,928 |
| History by Picture - A | 0 | - | 4.22 | 40,135 |
| History by Picture - B | 0 | - | 4.35 | 42,800 |
| History by Picture - C | 0 | - | 4.34 | 47,869 |
| History by Picture - F | 0 | - | 4.32 | 32,900 |
| History by Picture - G | 0 | - | 4.39 | 37,101 |
| History by Picture - D | 0 | - | 4.31 | 38,767 |
| History by Picture - E | 0 | - | 4.26 | 38,653 |
| History by Picture - H | 0 | - | 4.37 | 32,062 |
| History by Picture - M | 0 | - | 4.22 | 31,968 |
| History by Picture - N | 0 | - | 4.38 | 36,174 |
| History by Picture - O | 0 | - | 4.36 | 31,834 |
| Name that Nut, Seed, or Bean | 0 | - | 4.64 | 49,736 |
| Top 15 Countries with the Most Cows | 0 | - | 4.66 | 89,166 |
| Countries with the Most Wild Elephants | 0 | - | 4.58 | 50,535 |
| Animal Populations of Countries | 0 | - | 4.50 | 39,904 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 65,809 |
| South China Sea Countries | 0 | - | 4.82 | 53,552 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 127,584 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.91 | 88,583 |
| Art Works Picture Quiz #1 | 0 | - | 4.49 | 96,358 |
| Art Works Picture Quiz #2 | 0 | - | 4.45 | 85,847 |
| Musical Instruments by Picture #1 | 0 | - | 4.48 | 254,163 |
| Shapes and Symbols #2 | 0 | - | 4.06 | 55,530 |
| Flowers by Picture | 0 | - | 4.46 | 101,082 |
| Name that Object #2 | 0 | - | 3.63 | 14,275 |
| Authors by Picture | 0 | - | 4.46 | 23,591 |
| Name that Object #3 | 0 | - | 3.98 | 13,179 |
| College Sports Logos Quiz #3 | 0 | - | 4.33 | 45,983 |
| Planets By Picture Quiz | 0 | - | 4.54 | 48,026 |
| Songs by Picture Quiz #1 | 0 | - | 4.75 | 56,407 |
| Songs by Picture Quiz #2 | 0 | - | 4.43 | 50,869 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.25 | 64,389 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.24 | 46,683 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.22 | 47,320 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.15 | 64,622 |
| 1980s Celebrities by Picture #1 | 0 | - | 4.04 | 56,103 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.12 | 72,575 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.11 | 64,756 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.12 | 83,983 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.28 | 42,606 |
| International Footballers by Picture | 0 | - | 4.39 | 43,863 |
| Name that Historical Figure #3 | 0 | - | 4.39 | 212,533 |
| Name that Historical Figure #4 | 0 | - | 4.28 | 139,003 |
| Name that Historical Figure #5 | 0 | - | 4.39 | 90,095 |
| Name that Historical Figure #6 | 0 | - | 4.21 | 78,129 |
| Musicians by Picture #1 | 0 | - | 4.36 | 84,681 |
| Musicians by Picture #2 | 0 | - | 4.25 | 58,962 |
| Musicians by Picture #4 | 0 | - | 4.09 | 51,953 |
| Musicians by Picture #3 | 0 | - | 4.14 | 49,079 |
| Emoji Flags | 0 | - | 4.34 | 40,342 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 149,157 |
| Satellite Images Quiz #3 | 0 | - | 4.38 | 70,080 |
| Satellite Images - Island Chains | 0 | - | 4.42 | 56,727 |
| Islands by Satellite Image #1 | 0 | - | 4.72 | 61,574 |
| Peninsulas by Satellite Image | 0 | - | 4.52 | 25,823 |
| Landmarks Picture Quiz #1 | 0 | - | 4.20 | 358,909 |
| Airline Logos | 0 | - | 4.43 | 126,625 |
| Car Logos Quiz #2 | 0 | - | 4.38 | 209,713 |
| Mostly-American Candy Logos | 0 | - | 4.11 | 135,736 |
| Brand Logos That Start With S | 0 | - | 4.34 | 43,557 |
| Brand Logos That Start With D | 0 | - | 4.31 | 48,392 |
| Brand Logos That Start With L | 0 | - | 4.38 | 46,155 |
| Brand Logos That Start With C | 0 | - | 4.12 | 39,625 |
| Pictures by Letter - A | 0 | - | 4.10 | 29,736 |
| Pictures by Letter - C | 0 | - | 4.07 | 26,877 |
| Pictures by Letter - O | 0 | - | 4.01 | 26,166 |
| Pictures by Letter - G | 0 | - | 4.09 | 24,862 |
| Pictures by Letter - L | 0 | - | 4.11 | 27,278 |
| Pictures by Letter - F | 0 | - | 4.16 | 25,574 |
| Pictures by Letter - Z | 0 | - | 4.18 | 20,976 |
| Pictures by Letter - Y | 0 | - | 4.18 | 23,554 |
| Pictures by Letter - R | 0 | - | 4.11 | 22,074 |
| Pictures by Letter - K | 0 | - | 4.12 | 22,280 |
| Pictures by Letter - I | 0 | - | 4.18 | 27,011 |
| Pictures by Letter - N | 0 | - | 4.09 | 21,701 |
| Pictures by Letter - P | 0 | - | 4.09 | 23,344 |
| Pictures by Letter - U | 0 | - | 4.07 | 18,366 |
| Pictures by Letter - T | 0 | - | 4.32 | 24,696 |
| Vegetables by Picture | 0 | - | 4.32 | 52,986 |
| Where Do Musk Oxen Live? | 0 | - | 4.64 | 14,539 |
| Countries with More Cows than People | 0 | - | 4.41 | 47,452 |
| "Big Five" African Game Animals | 0 | - | 4.20 | 45,526 |
| North American Cat-Named Sports Teams | 0 | - | 4.41 | 30,989 |
| Countries with Wild Lions | 0 | - | 4.72 | 20,689 |
| North American Bird-Named Teams | 0 | - | 4.41 | 64,914 |
| Countries with NO Snakes | 0 | - | 4.56 | 62,175 |
| Foods by Picture | 0 | - | 3.79 | 215,698 |
| Shapes and Symbols #1 | 0 | - | 3.83 | 98,009 |
