| Former Countries by Territory Map | 0 | - | 4.96 | 102,428 |
| Empires by Maps | 0 | - | 4.98 | 119,806 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,168 |
| Name that Object #1 | 0 | - | 3.57 | 96,453 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,769 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,384 |
| All Country Flags of the World | 0 | - | 5.00 | 3,642,049 |
| Years in History by Picture | 0 | - | 4.44 | 35,403 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,683 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,533,421 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,091,019 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 732,177 |
| Old Movies by Picture | 0 | - | 4.51 | 25,026 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,909 |
| Name that Object #2 | 0 | - | 3.64 | 15,418 |
| Name that Object #3 | 0 | - | 3.93 | 14,375 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,291 |
| Flags with Crescents | 0 | - | 4.98 | 168,860 |
| Country Flag Trivia | 0 | - | 4.81 | 56,660 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,285 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,137 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 86,886 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,022 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,921 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,539 |
| Random Logos Quiz | 0 | - | 4.31 | 207,984 |
| National Football Team Logos | 0 | - | 4.85 | 179,820 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,326 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,945 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,854 |
| Pictures by Letter - D | 0 | - | 4.13 | 37,510 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,718 |
| Fruits by Picture | 0 | - | 4.19 | 806,396 |
| Geography by Picture - B | 0 | - | 4.42 | 55,538 |
| Geography by Picture - H | 0 | - | 4.50 | 58,166 |
| Geography by Picture - N | 0 | - | 4.45 | 42,150 |
| Geography by Picture - R | 0 | - | 4.56 | 40,968 |
| Geography by Picture - T | 0 | - | 4.54 | 57,784 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 114,545 |
| Flags to Languages | 0 | - | 4.95 | 173,269 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,424 |
| Pictures by Letter - G | 0 | - | 4.14 | 28,082 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,495 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,966 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,408 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,241 |
| Pictures by Letter - R | 0 | - | 4.05 | 24,717 |
| Pictures by Letter - K | 0 | - | 4.18 | 25,066 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,329 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,450 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,990 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,740 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,625 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,335 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,890 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 536,857 |
| Name that Bug | 0 | - | 4.12 | 45,523 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,290 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,844 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,584 |
| Elements by Picture | 0 | - | 4.27 | 69,796 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,262 |
| Islands by Picture | 0 | - | 4.29 | 106,604 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,200 |
| Geography by Picture - A | 0 | - | 4.39 | 60,178 |
| Geography by Picture - D | 0 | - | 4.15 | 45,595 |
| Geography by Picture - F | 0 | - | 4.31 | 50,929 |
| Geography by Picture - G | 0 | - | 4.38 | 47,899 |
| Geography by Picture - J | 0 | - | 4.16 | 38,414 |
| Geography by Picture - K | 0 | - | 4.29 | 33,083 |
| Geography by Picture - C | 0 | - | 4.31 | 57,018 |
| Geography by Picture - L | 0 | - | 4.37 | 58,884 |
| Geography by Picture - M | 0 | - | 4.14 | 40,409 |
| Geography by Picture - P | 0 | - | 4.24 | 42,386 |
| Geography by Picture - S | 0 | - | 4.38 | 46,997 |
| Video Game Logos Quiz | 0 | - | 4.40 | 183,550 |
| Movie Logos | 0 | - | 4.33 | 237,615 |
| History by Picture - A | 0 | - | 4.25 | 45,706 |
| History by Picture - B | 0 | - | 4.40 | 48,859 |
| History by Picture - C | 0 | - | 4.36 | 54,382 |
| History by Picture - F | 0 | - | 4.35 | 37,811 |
| History by Picture - G | 0 | - | 4.40 | 42,071 |
| History by Picture - D | 0 | - | 4.29 | 44,240 |
| History by Picture - E | 0 | - | 4.27 | 43,845 |
| History by Picture - H | 0 | - | 4.37 | 36,732 |
| History by Picture - K | 0 | - | 4.35 | 33,300 |
| History by Picture - M | 0 | - | 4.17 | 36,093 |
| History by Picture - N | 0 | - | 4.40 | 41,189 |
| History by Picture - O | 0 | - | 4.39 | 36,250 |
| History by Picture - T | 0 | - | 4.20 | 33,262 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,793 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,304 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,527 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,501 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,134 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,578 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,228 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,928 |
| International Footballers by Picture | 0 | - | 4.50 | 55,305 |
| Name that Historical Figure #2 | 0 | - | 4.41 | 283,985 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,351 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,664 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,761 |
| Flag Maths | 0 | - | 4.64 | 57,736 |
| Satellite Images #1 | 0 | - | 4.46 | 129,254 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,209 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,830 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,830 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,914 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,823 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,776 |
| Soccer Team Logos | 0 | - | 4.26 | 373,277 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 178,986 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 261,071 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,451 |
| Brand Logos That Start with A | 0 | - | 4.52 | 69,973 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,138 |
| Foods by Picture | 0 | - | 3.81 | 225,893 |
| Junk Foods by Picture | 0 | - | 3.69 | 96,251 |
| Christmas by Picture | 0 | - | 4.25 | 28,144 |
| Hats by Picture | 0 | - | 4.21 | 17,944 |
| Weapons by Picture | 0 | - | 4.13 | 21,010 |
| Cars by Picture | 0 | - | 3.89 | 41,368 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,280 |
| Plants by Picture | 0 | - | 4.24 | 14,408 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,423 |
| Women in History by Picture | 0 | - | 4.25 | 25,868 |
| Famous Foreheads #2 | 0 | - | 3.17 | 15,741 |
| Geography by Picture - E | 0 | - | 3.55 | 47,337 |
| Landforms by Picture | 0 | - | 4.31 | 20,642 |
| Geography by Picture - I | 0 | - | 4.00 | 39,380 |
| Geography by Picture - O | 0 | - | 4.01 | 28,102 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,198 |
| Pictures by Letter - H | 0 | - | 3.97 | 30,428 |
| Pictures by Letter - C | 0 | - | 3.99 | 30,147 |
| Pictures by Letter - O | 0 | - | 3.98 | 28,636 |
| Pictures by Letter - Q | 0 | - | 3.92 | 20,390 |
| Pictures by Letter - S | 0 | - | 3.82 | 20,906 |
| Pictures by Letter - W | 0 | - | 3.92 | 20,101 |
| Pictures by Letter - V | 0 | - | 4.00 | 17,943 |
| History by Picture - I | 0 | - | 4.26 | 26,164 |
| History by Picture - J | 0 | - | 4.18 | 26,685 |
| History by Picture - L | 0 | - | 4.18 | 30,721 |
| History by Picture - P | 0 | - | 4.08 | 25,250 |
| History by Picture - Q | 0 | - | 4.03 | 22,046 |
| History by Picture - R | 0 | - | 4.13 | 26,799 |
| History by Picture - S | 0 | - | 4.14 | 27,737 |
| History by Picture - U | 0 | - | 4.24 | 25,082 |
| History by Picture - V | 0 | - | 4.30 | 25,052 |
| History by Picture - W | 0 | - | 4.01 | 21,605 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,879 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,094 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 268,596 |
| Flowers by Picture | 0 | - | 4.46 | 105,550 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,665 |
| Authors by Picture | 0 | - | 4.48 | 25,497 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 80,006 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,554 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,590 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,773 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 58,735 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,402 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,273 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,018 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,063 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,469 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,121 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 165,018 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,282 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,319 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,093 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,552 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.13 | 79,262 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,234 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 95,053 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,078 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 238,897 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 158,804 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 93,057 |
| Musicians by Picture #1 | 0 | - | 4.39 | 108,254 |
| Musicians by Picture #2 | 0 | - | 4.29 | 76,065 |
| Musicians by Picture #4 | 0 | - | 4.07 | 64,640 |
| Musicians by Picture #3 | 0 | - | 4.10 | 58,774 |
| Emoji Flags | 0 | - | 4.35 | 43,984 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.67 | 37,739 |
| Languages by Combined Flags | 0 | - | 4.54 | 99,730 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,350 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,194 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,505 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,764 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 393,978 |
| Airline Logos | 0 | - | 4.45 | 140,448 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,415,697 |
| Fast Food Logos Quiz | 0 | - | 4.44 | 247,899 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 158,607 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,330 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,762 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,287 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,852 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,459 |
