| Former Countries by Territory Map | 0 | - | 4.96 | 102,000 |
| Empires by Maps | 0 | - | 4.98 | 119,117 |
| Elements by Picture | 0 | - | 4.28 | 69,691 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,214 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,136 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,083 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,398 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,242 |
| Play-Doh People from History | 0 | - | 4.99 | 94,180 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,203 |
| All Country Flags of the World | 0 | - | 5.00 | 3,622,366 |
| Metals of Antiquity | 0 | - | 4.94 | 93,083 |
| Years in History by Picture | 0 | - | 4.44 | 35,257 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,445 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,530,031 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,166 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,932 |
| Name that Object #1 | 0 | - | 3.56 | 96,349 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,057 |
| Flags with Crescents | 0 | - | 4.98 | 168,172 |
| Country Flag Trivia | 0 | - | 4.81 | 56,239 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,803 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,757 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,346 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,719 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,622 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,297 |
| National Football Team Logos | 0 | - | 4.85 | 179,333 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,586 |
| Old Movies by Picture | 0 | - | 4.51 | 24,919 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,792 |
| Random Logos Quiz | 0 | - | 4.31 | 207,488 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,226 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,832 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,715 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,403 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,621 |
| Fruits by Picture | 0 | - | 4.20 | 805,548 |
| Geography by Picture - B | 0 | - | 4.42 | 55,478 |
| Geography by Picture - H | 0 | - | 4.50 | 58,096 |
| Geography by Picture - N | 0 | - | 4.45 | 42,095 |
| Geography by Picture - R | 0 | - | 4.56 | 40,922 |
| Geography by Picture - T | 0 | - | 4.54 | 57,730 |
| Flags to Languages | 0 | - | 4.95 | 172,881 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,908 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,179 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,190 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,372 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,815 |
| Countries with Glaciers | 0 | - | 4.97 | 104,802 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,531 |
| Name that Object #2 | 0 | - | 3.64 | 15,355 |
| Name that Object #3 | 0 | - | 3.93 | 14,326 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,035 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,260 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,647 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 534,732 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,351 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,998 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,408 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,887 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,356 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,167 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,654 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,990 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,250 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,383 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,927 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,683 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,549 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,751 |
| Name that Bug | 0 | - | 4.12 | 45,492 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,233 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,731 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,496 |
| Islands by Picture | 0 | - | 4.29 | 106,259 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,136 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,232 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,389 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,030 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,353 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,851 |
| International Footballers by Picture | 0 | - | 4.50 | 55,051 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 283,408 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,036 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,515 |
| Geography by Picture - A | 0 | - | 4.39 | 60,110 |
| Geography by Picture - D | 0 | - | 4.15 | 45,543 |
| Geography by Picture - F | 0 | - | 4.31 | 50,876 |
| Geography by Picture - G | 0 | - | 4.38 | 47,849 |
| Geography by Picture - J | 0 | - | 4.16 | 38,371 |
| Geography by Picture - K | 0 | - | 4.29 | 33,045 |
| Geography by Picture - C | 0 | - | 4.31 | 56,972 |
| Geography by Picture - L | 0 | - | 4.37 | 58,829 |
| Geography by Picture - M | 0 | - | 4.14 | 40,372 |
| Geography by Picture - P | 0 | - | 4.24 | 42,340 |
| Geography by Picture - S | 0 | - | 4.38 | 46,955 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,102 |
| Flag Maths | 0 | - | 4.69 | 57,698 |
| Satellite Images #1 | 0 | - | 4.46 | 129,139 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,103 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,745 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,745 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,867 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,583 |
| Soccer Team Logos | 0 | - | 4.26 | 372,170 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 177,655 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 260,280 |
| Video Game Logos Quiz | 0 | - | 4.40 | 183,135 |
| Movie Logos | 0 | - | 4.33 | 236,765 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,128 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,658 |
| History by Picture - A | 0 | - | 4.25 | 45,599 |
| History by Picture - B | 0 | - | 4.40 | 48,730 |
| History by Picture - C | 0 | - | 4.36 | 54,243 |
| History by Picture - F | 0 | - | 4.35 | 37,714 |
| History by Picture - G | 0 | - | 4.40 | 41,969 |
| History by Picture - D | 0 | - | 4.29 | 44,131 |
| History by Picture - E | 0 | - | 4.27 | 43,754 |
| History by Picture - H | 0 | - | 4.37 | 36,650 |
| History by Picture - K | 0 | - | 4.35 | 33,208 |
| History by Picture - M | 0 | - | 4.17 | 36,011 |
| History by Picture - N | 0 | - | 4.40 | 41,094 |
| History by Picture - O | 0 | - | 4.39 | 36,153 |
| History by Picture - T | 0 | - | 4.20 | 33,187 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,989 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,166 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,365 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,032 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,447 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,097 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,846 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,409,214 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,673 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,916 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 268,293 |
| Foods by Picture | 0 | - | 3.81 | 225,697 |
| Flowers by Picture | 0 | - | 4.46 | 105,106 |
| Junk Foods by Picture | 0 | - | 3.69 | 96,135 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,604 |
| Christmas by Picture | 0 | - | 4.25 | 28,120 |
| Hats by Picture | 0 | - | 4.21 | 17,920 |
| Weapons by Picture | 0 | - | 4.13 | 20,953 |
| Cars by Picture | 0 | - | 3.89 | 41,217 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,250 |
| Authors by Picture | 0 | - | 4.48 | 25,448 |
| Plants by Picture | 0 | - | 4.24 | 14,379 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 79,745 |
| WWII Figures by Picture | 0 | - | 4.85 | 59,205 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,349 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,573 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 58,588 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,260 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,103 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,893 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,998 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,316 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,012 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 164,646 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,155 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,230 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,008 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,410 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.13 | 79,135 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,089 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 94,829 |
| Women in History by Picture | 0 | - | 4.25 | 25,809 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 45,998 |
| Famous Foreheads #2 | 0 | - | 3.17 | 15,698 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 238,442 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 158,471 |
| Name that Historical Figure #6 | 0 | - | 4.27 | 92,794 |
| Musicians by Picture #1 | 0 | - | 4.39 | 107,716 |
| Musicians by Picture #2 | 0 | - | 4.29 | 75,685 |
| Musicians by Picture #4 | 0 | - | 4.07 | 64,335 |
| Musicians by Picture #3 | 0 | - | 4.10 | 58,554 |
| Geography by Picture - E | 0 | - | 3.55 | 47,307 |
| Landforms by Picture | 0 | - | 4.31 | 20,605 |
| Geography by Picture - I | 0 | - | 4.00 | 39,344 |
| Emoji Flags | 0 | - | 4.35 | 43,899 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.64 | 37,600 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,449 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,299 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 65,959 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,312 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,713 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 393,511 |
| Airline Logos | 0 | - | 4.45 | 140,190 |
| Fast Food Logos Quiz | 0 | - | 4.44 | 247,427 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 158,245 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,044 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,516 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,001 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,546 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,251 |
| Pictures by Letter - H | 0 | - | 3.97 | 30,351 |
| Pictures by Letter - C | 0 | - | 3.99 | 30,071 |
| Pictures by Letter - O | 0 | - | 3.98 | 28,576 |
| Pictures by Letter - Q | 0 | - | 3.92 | 20,337 |
| Pictures by Letter - S | 0 | - | 3.82 | 20,843 |
