| Pictures by Letter - A | 0 | - | 4.18 | 33,625 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,255 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,234 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,788 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,988 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,673 |
| Empires by Maps | 0 | - | 4.98 | 121,758 |
| Pictures by Letter - E | 0 | - | 3.51 | 34,642 |
| Pictures by Letter - G | 0 | - | 4.14 | 28,365 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,749 |
| Pictures by Letter - F | 0 | - | 4.18 | 29,247 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,586 |
| Pictures by Letter - Y | 0 | - | 4.21 | 26,436 |
| Pictures by Letter - R | 0 | - | 4.05 | 24,910 |
| Pictures by Letter - K | 0 | - | 4.18 | 25,283 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,642 |
| Pictures by Letter - P | 0 | - | 4.05 | 26,192 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,916 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,839 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,480 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 105,216 |
| Play-Doh People from History | 0 | - | 4.99 | 95,444 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,023 |
| All Country Flags of the World | 0 | - | 5.00 | 3,707,387 |
| Pictures by Letter - H | 0 | - | 3.97 | 30,645 |
| Pictures by Letter - C | 0 | - | 4.00 | 30,391 |
| Pictures by Letter - O | 0 | - | 3.98 | 28,831 |
| Pictures by Letter - Q | 0 | - | 3.92 | 20,563 |
| Pictures by Letter - S | 0 | - | 3.82 | 21,091 |
| Pictures by Letter - W | 0 | - | 3.87 | 20,271 |
| Pictures by Letter - V | 0 | - | 4.00 | 18,100 |
| Years in History by Picture | 0 | - | 4.44 | 35,742 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,352 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,544,732 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,096,630 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,066 |
| Name that Object #1 | 0 | - | 3.57 | 96,597 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,888 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,980 |
| Flags with Crescents | 0 | - | 4.98 | 171,166 |
| Country Flag Trivia | 0 | - | 4.81 | 57,890 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,767 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,317 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,436 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,853 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,893 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,416 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 183,629 |
| National Football Team Logos | 0 | - | 4.85 | 181,647 |
| Old Movies by Picture | 0 | - | 4.51 | 25,242 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,279 |
| Random Logos Quiz | 0 | - | 4.33 | 209,337 |
| Fruits by Picture | 0 | - | 4.19 | 808,979 |
| Geography by Picture - B | 0 | - | 4.42 | 55,759 |
| Geography by Picture - H | 0 | - | 4.50 | 58,357 |
| Geography by Picture - N | 0 | - | 4.45 | 42,327 |
| Geography by Picture - R | 0 | - | 4.56 | 41,130 |
| Geography by Picture - T | 0 | - | 4.54 | 57,981 |
| Flags to Languages | 0 | - | 4.95 | 174,407 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 116,190 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,972 |
| Name that Object #2 | 0 | - | 3.63 | 15,512 |
| Name that Object #3 | 0 | - | 3.93 | 14,452 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,816 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 339,163 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,388 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 543,527 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,673 |
| Name that Bug | 0 | - | 4.12 | 45,625 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,490 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,242 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,955 |
| Elements by Picture | 0 | - | 4.27 | 70,280 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,501 |
| Islands by Picture | 0 | - | 4.28 | 107,685 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,433 |
| Animals by Close-up Image | 0 | - | 4.42 | 218,983 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,979 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,457 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,382 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,185 |
| International Footballers by Picture | 0 | - | 4.51 | 56,320 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 285,876 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 108,476 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 51,152 |
| Geography by Picture - A | 0 | - | 4.39 | 60,409 |
| Geography by Picture - D | 0 | - | 4.15 | 45,768 |
| Geography by Picture - F | 0 | - | 4.31 | 51,151 |
| Geography by Picture - G | 0 | - | 4.39 | 48,061 |
| Geography by Picture - J | 0 | - | 4.16 | 38,575 |
| Geography by Picture - K | 0 | - | 4.29 | 33,231 |
| Geography by Picture - C | 0 | - | 4.31 | 57,213 |
| Geography by Picture - L | 0 | - | 4.37 | 59,114 |
| Geography by Picture - M | 0 | - | 4.14 | 40,562 |
| Geography by Picture - P | 0 | - | 4.24 | 42,547 |
| Geography by Picture - S | 0 | - | 4.38 | 47,166 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,903 |
| Flag Maths | 0 | - | 4.61 | 57,825 |
| Satellite Images #1 | 0 | - | 4.47 | 129,929 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,619 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,177 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,189 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,175 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,502 |
| Soccer Team Logos | 0 | - | 4.26 | 377,251 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 263,650 |
| Video Game Logos Quiz | 0 | - | 4.40 | 184,882 |
| Movie Logos | 0 | - | 4.33 | 240,148 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,068 |
| History by Picture - A | 0 | - | 4.26 | 46,106 |
| History by Picture - B | 0 | - | 4.40 | 49,299 |
| History by Picture - C | 0 | - | 4.33 | 54,830 |
| History by Picture - F | 0 | - | 4.35 | 38,154 |
| History by Picture - G | 0 | - | 4.40 | 42,391 |
| History by Picture - D | 0 | - | 4.29 | 44,616 |
| History by Picture - E | 0 | - | 4.25 | 44,194 |
| History by Picture - H | 0 | - | 4.37 | 37,042 |
| History by Picture - K | 0 | - | 4.35 | 33,576 |
| History by Picture - M | 0 | - | 4.17 | 36,363 |
| History by Picture - N | 0 | - | 4.40 | 41,498 |
| History by Picture - O | 0 | - | 4.39 | 36,525 |
| History by Picture - T | 0 | - | 4.20 | 33,514 |
| Name that Nut, Seed, or Bean | 0 | - | 4.57 | 57,607 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,583 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,328 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,436,452 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,762 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,813 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,689 |
| Foods by Picture | 0 | - | 3.81 | 226,511 |
| Flowers by Picture | 0 | - | 4.46 | 105,835 |
| Junk Foods by Picture | 0 | - | 3.69 | 96,640 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,937 |
| Christmas by Picture | 0 | - | 4.26 | 28,226 |
| Hats by Picture | 0 | - | 4.21 | 18,014 |
| Weapons by Picture | 0 | - | 4.13 | 21,166 |
| Cars by Picture | 0 | - | 3.89 | 41,786 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,370 |
| Authors by Picture | 0 | - | 4.48 | 25,621 |
| Plants by Picture | 0 | - | 4.24 | 14,519 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 90,810 |
| WWII Figures by Picture | 0 | - | 4.89 | 66,169 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 56,123 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,309 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 66,448 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 59,264 |
| Fish by Picture #1 | 0 | - | 4.41 | 109,030 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,824 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,471 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,323 |
| Birds by Picture #1 | 0 | - | 4.47 | 42,005 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,533 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 165,740 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,720 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,640 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,349 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 72,077 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.14 | 79,731 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,786 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 96,033 |
| Women in History by Picture | 0 | - | 4.25 | 26,018 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,336 |
| Famous Foreheads #2 | 0 | - | 3.17 | 15,844 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 240,540 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 159,973 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 93,970 |
| Musicians by Picture #1 | 0 | - | 4.38 | 109,880 |
| Musicians by Picture #2 | 0 | - | 4.29 | 77,279 |
| Musicians by Picture #4 | 0 | - | 4.07 | 65,517 |
| Musicians by Picture #3 | 0 | - | 4.10 | 59,477 |
| Geography by Picture - E | 0 | - | 3.55 | 47,477 |
| Landforms by Picture | 0 | - | 4.31 | 20,740 |
| Geography by Picture - I | 0 | - | 4.00 | 39,520 |
| Geography by Picture - O | 0 | - | 4.01 | 28,230 |
| Emoji Flags | 0 | - | 4.35 | 44,265 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 38,196 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,596 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,614 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,911 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 71,200 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,920 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 395,546 |
| Airline Logos | 0 | - | 4.45 | 141,356 |
| Fast Food Logos Quiz | 0 | - | 4.45 | 249,345 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 159,821 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,445 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,201 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,565 |
| Brand Logos That Start With D | 0 | - | 4.36 | 62,124 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,829 |
| Brand Logos That Start With C | 0 | - | 4.20 | 50,068 |
| History by Picture - I | 0 | - | 4.24 | 26,422 |
| History by Picture - J | 0 | - | 4.18 | 26,913 |
| History by Picture - L | 0 | - | 4.18 | 30,988 |
| History by Picture - P | 0 | - | 4.08 | 25,458 |
| History by Picture - Q | 0 | - | 4.03 | 22,239 |
| History by Picture - R | 0 | - | 4.13 | 27,030 |
| History by Picture - S | 0 | - | 4.14 | 27,964 |
| History by Picture - U | 0 | - | 4.25 | 25,304 |
| History by Picture - V | 0 | - | 4.31 | 25,291 |
