| Pictures by Letter - A | 0 | - | 4.18 | 33,524 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,156 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,105 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,696 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,895 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,217 |
| Empires by Maps | 0 | - | 4.98 | 121,087 |
| Pictures by Letter - E | 0 | - | 3.51 | 34,565 |
| Pictures by Letter - G | 0 | - | 4.14 | 28,269 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,661 |
| Pictures by Letter - F | 0 | - | 4.18 | 29,150 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,526 |
| Pictures by Letter - Y | 0 | - | 4.21 | 26,383 |
| Pictures by Letter - R | 0 | - | 4.05 | 24,852 |
| Pictures by Letter - K | 0 | - | 4.18 | 25,207 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,475 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,573 |
| Pictures by Letter - P | 0 | - | 4.05 | 26,128 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,849 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,767 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,376 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 104,803 |
| Play-Doh People from History | 0 | - | 4.99 | 95,134 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,805 |
| All Country Flags of the World | 0 | - | 5.00 | 3,685,711 |
| Pictures by Letter - H | 0 | - | 3.97 | 30,564 |
| Pictures by Letter - C | 0 | - | 4.00 | 30,304 |
| Pictures by Letter - O | 0 | - | 3.98 | 28,760 |
| Pictures by Letter - Q | 0 | - | 3.92 | 20,509 |
| Pictures by Letter - S | 0 | - | 3.82 | 21,024 |
| Pictures by Letter - W | 0 | - | 3.87 | 20,209 |
| Pictures by Letter - V | 0 | - | 4.00 | 18,052 |
| Years in History by Picture | 0 | - | 4.44 | 35,638 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,137 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,541,047 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,743 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,722 |
| Name that Object #1 | 0 | - | 3.57 | 96,547 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,706 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,750 |
| Flags with Crescents | 0 | - | 4.98 | 170,463 |
| Country Flag Trivia | 0 | - | 4.81 | 57,475 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,254 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,911 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,908 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,545 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,558 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,125 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 182,150 |
| National Football Team Logos | 0 | - | 4.85 | 180,961 |
| Old Movies by Picture | 0 | - | 4.51 | 25,159 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,158 |
| Random Logos Quiz | 0 | - | 4.33 | 208,883 |
| Fruits by Picture | 0 | - | 4.19 | 808,186 |
| Geography by Picture - B | 0 | - | 4.42 | 55,692 |
| Geography by Picture - H | 0 | - | 4.50 | 58,298 |
| 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 |
| Flags to Languages | 0 | - | 4.95 | 174,003 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 115,681 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,752 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,394 |
| Name that Object #2 | 0 | - | 3.64 | 15,474 |
| Name that Object #3 | 0 | - | 3.93 | 14,429 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,629 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 338,323 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,210 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 541,413 |
| Name that Bug | 0 | - | 4.12 | 45,596 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,433 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,078 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,794 |
| Elements by Picture | 0 | - | 4.27 | 70,116 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,396 |
| Islands by Picture | 0 | - | 4.28 | 107,333 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,355 |
| Animals by Close-up Image | 0 | - | 4.42 | 218,643 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,817 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,357 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,082 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,107 |
| International Footballers by Picture | 0 | - | 4.51 | 55,984 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 285,223 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 108,087 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 50,990 |
| Geography by Picture - A | 0 | - | 4.39 | 60,340 |
| Geography by Picture - D | 0 | - | 4.15 | 45,720 |
| Geography by Picture - F | 0 | - | 4.31 | 51,086 |
| Geography by Picture - G | 0 | - | 4.39 | 48,018 |
| Geography by Picture - J | 0 | - | 4.16 | 38,525 |
| Geography by Picture - K | 0 | - | 4.29 | 33,185 |
| Geography by Picture - C | 0 | - | 4.31 | 57,146 |
| Geography by Picture - L | 0 | - | 4.37 | 59,060 |
| Geography by Picture - M | 0 | - | 4.14 | 40,519 |
| Geography by Picture - P | 0 | - | 4.24 | 42,497 |
| Geography by Picture - S | 0 | - | 4.38 | 47,102 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,189 |
| Flag Maths | 0 | - | 4.64 | 57,798 |
| Satellite Images #1 | 0 | - | 4.47 | 129,508 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,428 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,012 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,034 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,056 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,237 |
| Soccer Team Logos | 0 | - | 4.26 | 375,915 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 262,841 |
| Video Game Logos Quiz | 0 | - | 4.40 | 184,466 |
| Movie Logos | 0 | - | 4.33 | 239,335 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,729 |
| History by Picture - A | 0 | - | 4.26 | 45,980 |
| History by Picture - B | 0 | - | 4.40 | 49,158 |
| History by Picture - C | 0 | - | 4.36 | 54,683 |
| History by Picture - F | 0 | - | 4.35 | 38,035 |
| History by Picture - G | 0 | - | 4.40 | 42,281 |
| History by Picture - D | 0 | - | 4.29 | 44,479 |
| History by Picture - E | 0 | - | 4.25 | 44,081 |
| History by Picture - H | 0 | - | 4.37 | 36,922 |
| History by Picture - K | 0 | - | 4.35 | 33,478 |
| History by Picture - M | 0 | - | 4.17 | 36,254 |
| History by Picture - N | 0 | - | 4.40 | 41,387 |
| History by Picture - O | 0 | - | 4.39 | 36,428 |
| History by Picture - T | 0 | - | 4.20 | 33,417 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,460 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,188 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,929 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,430,082 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,535 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,606 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,337 |
| Foods by Picture | 0 | - | 3.81 | 226,325 |
| Flowers by Picture | 0 | - | 4.46 | 105,749 |
| Junk Foods by Picture | 0 | - | 3.69 | 96,527 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,863 |
| Christmas by Picture | 0 | - | 4.26 | 28,207 |
| Hats by Picture | 0 | - | 4.21 | 17,996 |
| Weapons by Picture | 0 | - | 4.13 | 21,117 |
| Cars by Picture | 0 | - | 3.89 | 41,639 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,331 |
| Authors by Picture | 0 | - | 4.48 | 25,578 |
| Plants by Picture | 0 | - | 4.24 | 14,486 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 90,437 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,858 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,972 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,079 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 66,231 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 59,070 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,669 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,656 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,312 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,218 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,852 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,379 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 165,401 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,586 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,544 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,268 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,898 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.14 | 79,579 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,616 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 95,820 |
| Women in History by Picture | 0 | - | 4.25 | 25,970 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,251 |
| Famous Foreheads #2 | 0 | - | 3.17 | 15,814 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 239,958 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 159,569 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 93,663 |
| Musicians by Picture #1 | 0 | - | 4.37 | 109,391 |
| Musicians by Picture #2 | 0 | - | 4.29 | 76,898 |
| Musicians by Picture #4 | 0 | - | 4.07 | 65,254 |
| Musicians by Picture #3 | 0 | - | 4.10 | 59,263 |
| Geography by Picture - E | 0 | - | 3.55 | 47,441 |
| Landforms by Picture | 0 | - | 4.31 | 20,711 |
| Geography by Picture - I | 0 | - | 4.00 | 39,479 |
| Geography by Picture - O | 0 | - | 4.01 | 28,186 |
| Emoji Flags | 0 | - | 4.35 | 44,174 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 38,041 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,278 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,466 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,673 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,980 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,868 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 395,072 |
| Airline Logos | 0 | - | 4.45 | 141,070 |
| Fast Food Logos Quiz | 0 | - | 4.45 | 248,912 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 159,456 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,162 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,949 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,305 |
| Brand Logos That Start With D | 0 | - | 4.36 | 61,848 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,505 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,888 |
| History by Picture - I | 0 | - | 4.24 | 26,341 |
| History by Picture - J | 0 | - | 4.18 | 26,837 |
| History by Picture - L | 0 | - | 4.18 | 30,888 |
| History by Picture - P | 0 | - | 4.08 | 25,376 |
| History by Picture - Q | 0 | - | 4.03 | 22,172 |
| History by Picture - R | 0 | - | 4.13 | 26,946 |
| History by Picture - S | 0 | - | 4.14 | 27,877 |
| History by Picture - U | 0 | - | 4.24 | 25,229 |
