| Pictures by Letter - A | 0 | - | 4.17 | 33,175 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,776 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,363 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,570 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,825 |
| Empires by Maps | 0 | - | 4.98 | 118,852 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,316 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,962 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,374 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,853 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,331 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,142 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,623 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,962 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,218 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,356 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,898 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,658 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,522 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,041 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,027 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,130 |
| All Country Flags of the World | 0 | - | 5.00 | 3,613,762 |
| Pictures by Letter - H | 0 | - | 3.97 | 30,321 |
| Pictures by Letter - C | 0 | - | 3.99 | 30,035 |
| Pictures by Letter - O | 0 | - | 3.98 | 28,550 |
| Pictures by Letter - Q | 0 | - | 3.92 | 20,311 |
| Pictures by Letter - S | 0 | - | 3.82 | 20,818 |
| Pictures by Letter - W | 0 | - | 3.92 | 20,025 |
| Pictures by Letter - V | 0 | - | 4.00 | 17,868 |
| Years in History by Picture | 0 | - | 4.44 | 35,180 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,348 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,528,432 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,404 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,381 |
| Name that Object #1 | 0 | - | 3.56 | 96,333 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,951 |
| Flags with Crescents | 0 | - | 4.98 | 167,913 |
| Country Flag Trivia | 0 | - | 4.81 | 56,122 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,649 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,629 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,162 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,612 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,517 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,187 |
| National Football Team Logos | 0 | - | 4.84 | 179,002 |
| Old Movies by Picture | 0 | - | 4.51 | 24,875 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,748 |
| Random Logos Quiz | 0 | - | 4.31 | 207,264 |
| Fruits by Picture | 0 | - | 4.20 | 805,171 |
| Geography by Picture - B | 0 | - | 4.42 | 55,457 |
| Geography by Picture - H | 0 | - | 4.50 | 58,080 |
| Geography by Picture - N | 0 | - | 4.45 | 42,074 |
| Geography by Picture - R | 0 | - | 4.55 | 40,905 |
| Geography by Picture - T | 0 | - | 4.54 | 57,714 |
| Flags to Languages | 0 | - | 4.95 | 172,715 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,606 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,173 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,416 |
| Name that Object #2 | 0 | - | 3.64 | 15,342 |
| Name that Object #3 | 0 | - | 3.93 | 14,317 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,952 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,883 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,559 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 533,553 |
| Name that Bug | 0 | - | 4.12 | 45,467 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,206 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,676 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,463 |
| Elements by Picture | 0 | - | 4.28 | 69,632 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,188 |
| Islands by Picture | 0 | - | 4.29 | 106,106 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,093 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,082 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,082 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,328 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,981 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,257 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,818 |
| International Footballers by Picture | 0 | - | 4.50 | 54,904 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 283,041 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,834 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,395 |
| Geography by Picture - A | 0 | - | 4.39 | 60,085 |
| Geography by Picture - D | 0 | - | 4.15 | 45,528 |
| Geography by Picture - F | 0 | - | 4.31 | 50,858 |
| Geography by Picture - G | 0 | - | 4.38 | 47,829 |
| Geography by Picture - J | 0 | - | 4.16 | 38,356 |
| Geography by Picture - K | 0 | - | 4.29 | 33,037 |
| Geography by Picture - C | 0 | - | 4.31 | 56,944 |
| Geography by Picture - L | 0 | - | 4.37 | 58,799 |
| Geography by Picture - M | 0 | - | 4.14 | 40,365 |
| Geography by Picture - P | 0 | - | 4.24 | 42,324 |
| Geography by Picture - S | 0 | - | 4.38 | 46,937 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,770 |
| Flag Maths | 0 | - | 4.78 | 57,692 |
| Satellite Images #1 | 0 | - | 4.46 | 129,087 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,050 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,705 |
| Satellite Images Quiz #5 | 0 | - | 4.49 | 49,701 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,847 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,485 |
| Soccer Team Logos | 0 | - | 4.26 | 371,519 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 177,033 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,793 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,893 |
| Movie Logos | 0 | - | 4.33 | 236,365 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,965 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,366 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,480 |
| History by Picture - A | 0 | - | 4.25 | 45,519 |
| History by Picture - B | 0 | - | 4.40 | 48,651 |
| History by Picture - C | 0 | - | 4.36 | 54,163 |
| History by Picture - F | 0 | - | 4.35 | 37,651 |
| History by Picture - G | 0 | - | 4.40 | 41,904 |
| History by Picture - D | 0 | - | 4.29 | 44,071 |
| History by Picture - E | 0 | - | 4.27 | 43,683 |
| History by Picture - H | 0 | - | 4.37 | 36,594 |
| History by Picture - K | 0 | - | 4.35 | 33,157 |
| History by Picture - M | 0 | - | 4.17 | 35,957 |
| History by Picture - N | 0 | - | 4.40 | 41,043 |
| History by Picture - O | 0 | - | 4.39 | 36,092 |
| History by Picture - T | 0 | - | 4.20 | 33,142 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,938 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,947 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,684 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,406,017 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,583 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,815 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 268,118 |
| Foods by Picture | 0 | - | 3.81 | 225,604 |
| Flowers by Picture | 0 | - | 4.46 | 105,066 |
| Junk Foods by Picture | 0 | - | 3.69 | 96,087 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,568 |
| Christmas by Picture | 0 | - | 4.25 | 28,117 |
| Hats by Picture | 0 | - | 4.21 | 17,915 |
| Weapons by Picture | 0 | - | 4.13 | 20,917 |
| Cars by Picture | 0 | - | 3.89 | 41,153 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,244 |
| Authors by Picture | 0 | - | 4.48 | 25,419 |
| Plants by Picture | 0 | - | 4.24 | 14,361 |
| Fruit and Vegetable Emojis | 0 | - | 4.43 | 79,638 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,651 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,247 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,315 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,483 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 58,511 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,184 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,017 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,839 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,955 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,239 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,942 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 164,572 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,097 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,181 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 50,969 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,328 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.13 | 79,073 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,028 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 94,725 |
| Women in History by Picture | 0 | - | 4.25 | 25,788 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 45,968 |
| Famous Foreheads #2 | 0 | - | 3.17 | 15,685 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 237,946 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 158,239 |
| Name that Historical Figure #6 | 0 | - | 4.27 | 92,592 |
| Musicians by Picture #1 | 0 | - | 4.39 | 107,427 |
| Musicians by Picture #2 | 0 | - | 4.29 | 75,503 |
| Musicians by Picture #4 | 0 | - | 4.07 | 64,207 |
| Musicians by Picture #3 | 0 | - | 4.10 | 58,454 |
| Geography by Picture - E | 0 | - | 3.55 | 47,294 |
| Landforms by Picture | 0 | - | 4.31 | 20,593 |
| Geography by Picture - I | 0 | - | 4.00 | 39,335 |
| Emoji Flags | 0 | - | 4.35 | 43,861 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.64 | 37,532 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,303 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,278 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 65,855 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,213 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,695 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 393,273 |
| Airline Logos | 0 | - | 4.45 | 140,086 |
| Fast Food Logos Quiz | 0 | - | 4.43 | 247,215 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 158,088 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,892 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,851 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,382 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,147 |
| History by Picture - I | 0 | - | 4.26 | 26,061 |
| History by Picture - J | 0 | - | 4.18 | 26,573 |
| History by Picture - L | 0 | - | 4.18 | 30,600 |
| History by Picture - P | 0 | - | 4.08 | 25,147 |
| History by Picture - Q | 0 | - | 4.03 | 21,947 |
| History by Picture - R | 0 | - | 4.13 | 26,685 |
| History by Picture - S | 0 | - | 4.14 | 27,636 |
| History by Picture - U | 0 | - | 4.24 | 24,979 |
| History by Picture - V | 0 | - | 4.30 | 24,953 |
| History by Picture - W | 0 | - | 4.01 | 21,525 |
| Vegetables by Picture | 0 | - | 4.39 | 62,961 |
