| Pictures by Letter - A | 0 | - | 4.17 | 33,284 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,900 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,798 |
| Pictures by Letter - D | 0 | - | 4.13 | 37,465 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,680 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,288 |
| Empires by Maps | 0 | - | 4.98 | 119,558 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,387 |
| Pictures by Letter - G | 0 | - | 4.14 | 28,041 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,456 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,934 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,379 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,208 |
| Pictures by Letter - R | 0 | - | 4.05 | 24,685 |
| Pictures by Letter - K | 0 | - | 4.18 | 25,032 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,298 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,420 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,960 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,716 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,597 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,133 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,593 |
| Play-Doh People from History | 0 | - | 4.99 | 94,378 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,311 |
| All Country Flags of the World | 0 | - | 5.00 | 3,634,831 |
| Pictures by Letter - H | 0 | - | 3.97 | 30,393 |
| Pictures by Letter - C | 0 | - | 3.99 | 30,113 |
| Pictures by Letter - O | 0 | - | 3.98 | 28,611 |
| Pictures by Letter - Q | 0 | - | 3.92 | 20,365 |
| Pictures by Letter - S | 0 | - | 3.82 | 20,877 |
| Pictures by Letter - W | 0 | - | 3.92 | 20,074 |
| Pictures by Letter - V | 0 | - | 4.00 | 17,919 |
| Years in History by Picture | 0 | - | 4.44 | 35,359 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,575 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,532,044 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,090,194 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 731,712 |
| Name that Object #1 | 0 | - | 3.57 | 96,421 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,194 |
| Flags with Crescents | 0 | - | 4.98 | 168,600 |
| Country Flag Trivia | 0 | - | 4.81 | 56,525 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,111 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,014 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,671 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,908 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,798 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,459 |
| National Football Team Logos | 0 | - | 4.85 | 179,640 |
| Old Movies by Picture | 0 | - | 4.51 | 24,990 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,865 |
| Random Logos Quiz | 0 | - | 4.31 | 207,811 |
| Fruits by Picture | 0 | - | 4.20 | 806,103 |
| Geography by Picture - B | 0 | - | 4.42 | 55,514 |
| Geography by Picture - H | 0 | - | 4.50 | 58,134 |
| Geography by Picture - N | 0 | - | 4.45 | 42,126 |
| Geography by Picture - R | 0 | - | 4.56 | 40,954 |
| Geography by Picture - T | 0 | - | 4.54 | 57,763 |
| Flags to Languages | 0 | - | 4.95 | 173,122 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 114,322 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,260 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,690 |
| Name that Object #2 | 0 | - | 3.64 | 15,394 |
| Name that Object #3 | 0 | - | 3.93 | 14,353 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,152 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,663 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,750 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 536,023 |
| Name that Bug | 0 | - | 4.12 | 45,509 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,267 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,806 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,563 |
| Elements by Picture | 0 | - | 4.27 | 69,766 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,240 |
| Islands by Picture | 0 | - | 4.29 | 106,464 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,179 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,227 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,416 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,461 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,095 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,496 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,903 |
| International Footballers by Picture | 0 | - | 4.50 | 55,212 |
| Name that Historical Figure #2 | 0 | - | 4.41 | 283,786 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,227 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,595 |
| Geography by Picture - A | 0 | - | 4.39 | 60,149 |
| Geography by Picture - D | 0 | - | 4.15 | 45,573 |
| Geography by Picture - F | 0 | - | 4.31 | 50,910 |
| Geography by Picture - G | 0 | - | 4.38 | 47,878 |
| Geography by Picture - J | 0 | - | 4.16 | 38,395 |
| Geography by Picture - K | 0 | - | 4.29 | 33,066 |
| Geography by Picture - C | 0 | - | 4.31 | 56,999 |
| Geography by Picture - L | 0 | - | 4.37 | 58,859 |
| Geography by Picture - M | 0 | - | 4.14 | 40,395 |
| Geography by Picture - P | 0 | - | 4.24 | 42,369 |
| Geography by Picture - S | 0 | - | 4.38 | 46,983 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,497 |
| Flag Maths | 0 | - | 4.64 | 57,715 |
| Satellite Images #1 | 0 | - | 4.46 | 129,210 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,166 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,799 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,803 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,896 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,704 |
| Soccer Team Logos | 0 | - | 4.26 | 372,825 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 178,474 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 260,750 |
| Video Game Logos Quiz | 0 | - | 4.40 | 183,388 |
| Movie Logos | 0 | - | 4.33 | 237,285 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,307 |
| Brand Logos That Start with A | 0 | - | 4.52 | 69,852 |
| History by Picture - A | 0 | - | 4.25 | 45,668 |
| History by Picture - B | 0 | - | 4.40 | 48,815 |
| History by Picture - C | 0 | - | 4.36 | 54,331 |
| History by Picture - F | 0 | - | 4.35 | 37,779 |
| History by Picture - G | 0 | - | 4.40 | 42,040 |
| History by Picture - D | 0 | - | 4.29 | 44,199 |
| History by Picture - E | 0 | - | 4.27 | 43,813 |
| History by Picture - H | 0 | - | 4.37 | 36,704 |
| History by Picture - K | 0 | - | 4.35 | 33,267 |
| History by Picture - M | 0 | - | 4.17 | 36,062 |
| History by Picture - N | 0 | - | 4.40 | 41,157 |
| History by Picture - O | 0 | - | 4.39 | 36,211 |
| History by Picture - T | 0 | - | 4.20 | 33,234 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,085 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,294 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,065 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,413,074 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,792 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,027 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 268,478 |
| Foods by Picture | 0 | - | 3.81 | 225,805 |
| Flowers by Picture | 0 | - | 4.46 | 105,150 |
| Junk Foods by Picture | 0 | - | 3.69 | 96,205 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,641 |
| Christmas by Picture | 0 | - | 4.25 | 28,134 |
| Hats by Picture | 0 | - | 4.21 | 17,932 |
| Weapons by Picture | 0 | - | 4.13 | 20,992 |
| Cars by Picture | 0 | - | 3.89 | 41,311 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,267 |
| Authors by Picture | 0 | - | 4.48 | 25,479 |
| Plants by Picture | 0 | - | 4.24 | 14,389 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 79,898 |
| WWII Figures by Picture | 0 | - | 4.89 | 64,459 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,470 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,518 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,698 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 58,676 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,330 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,202 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,965 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,042 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,403 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,079 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 164,941 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,244 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,289 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,059 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,507 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.13 | 79,222 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,185 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 94,982 |
| Women in History by Picture | 0 | - | 4.25 | 25,845 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,045 |
| Famous Foreheads #2 | 0 | - | 3.17 | 15,720 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 238,728 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 158,674 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 92,949 |
| Musicians by Picture #1 | 0 | - | 4.39 | 108,033 |
| Musicians by Picture #2 | 0 | - | 4.29 | 75,902 |
| Musicians by Picture #4 | 0 | - | 4.07 | 64,509 |
| Musicians by Picture #3 | 0 | - | 4.10 | 58,678 |
| Geography by Picture - E | 0 | - | 3.55 | 47,326 |
| Landforms by Picture | 0 | - | 4.31 | 20,625 |
| Geography by Picture - I | 0 | - | 4.00 | 39,365 |
| Emoji Flags | 0 | - | 4.35 | 43,953 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.67 | 37,685 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,602 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,330 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,116 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,432 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,738 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 393,821 |
| Airline Logos | 0 | - | 4.45 | 140,348 |
| Fast Food Logos Quiz | 0 | - | 4.44 | 247,695 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 158,454 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,222 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,672 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,174 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,722 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,385 |
| History by Picture - I | 0 | - | 4.26 | 26,139 |
| History by Picture - J | 0 | - | 4.18 | 26,655 |
| History by Picture - L | 0 | - | 4.18 | 30,693 |
| History by Picture - P | 0 | - | 4.08 | 25,228 |
| History by Picture - Q | 0 | - | 4.03 | 22,017 |
| History by Picture - R | 0 | - | 4.13 | 26,768 |
| History by Picture - S | 0 | - | 4.14 | 27,713 |
| History by Picture - U | 0 | - | 4.24 | 25,053 |
| History by Picture - V | 0 | - | 4.30 | 25,021 |
