| Former Countries by Territory Map | 0 | - | 4.96 | 103,927 |
| Empires by Maps | 0 | - | 4.98 | 122,136 |
| Video Game Logos Quiz | 0 | - | 4.40 | 185,102 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,541 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 105,369 |
| Play-Doh People from History | 0 | - | 4.99 | 95,581 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,129 |
| All Country Flags of the World | 0 | - | 5.00 | 3,714,973 |
| Years in History by Picture | 0 | - | 4.45 | 35,827 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,452 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,184 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,296 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,525 |
| Name that Object #1 | 0 | - | 3.57 | 96,635 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,953 |
| Make a Stained Glass Window | 0 | - | 5.00 | 69,091 |
| Flags with Crescents | 0 | - | 4.98 | 171,387 |
| Country Flag Trivia | 0 | - | 4.81 | 58,052 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,925 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,454 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,626 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,966 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,004 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,505 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 184,175 |
| National Football Team Logos | 0 | - | 4.85 | 181,923 |
| Old Movies by Picture | 0 | - | 4.51 | 25,271 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,306 |
| Random Logos Quiz | 0 | - | 4.33 | 209,692 |
| Pictures by Letter - A | 0 | - | 4.18 | 33,654 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,283 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,265 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,810 |
| Pictures by Letter - M | 0 | - | 4.24 | 38,014 |
| Fruits by Picture | 0 | - | 4.19 | 809,434 |
| Geography by Picture - B | 0 | - | 4.42 | 55,785 |
| Geography by Picture - H | 0 | - | 4.50 | 58,383 |
| Geography by Picture - N | 0 | - | 4.45 | 42,340 |
| Geography by Picture - R | 0 | - | 4.56 | 41,147 |
| Geography by Picture - T | 0 | - | 4.54 | 58,001 |
| Flags to Languages | 0 | - | 4.95 | 174,531 |
| All North American Pro Sports Logos | 0 | - | 4.72 | 116,453 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,043 |
| Original 151 Pokémon | 0 | - | 4.96 | 797,611 |
| Name that Object #2 | 0 | - | 3.63 | 15,529 |
| Name that Object #3 | 0 | - | 3.93 | 14,471 |
| Pokémon by Picture | 0 | - | 4.38 | 75,192 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,884 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 339,643 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,466 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 544,279 |
| Pictures by Letter - E | 0 | - | 3.51 | 34,663 |
| Pictures by Letter - G | 0 | - | 4.14 | 28,394 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,774 |
| Pictures by Letter - F | 0 | - | 4.18 | 29,273 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,603 |
| Pictures by Letter - Y | 0 | - | 4.21 | 26,458 |
| Pictures by Letter - R | 0 | - | 4.05 | 24,932 |
| Pictures by Letter - K | 0 | - | 4.18 | 25,302 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,583 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,664 |
| Pictures by Letter - P | 0 | - | 4.05 | 26,209 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,938 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,867 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,754 |
| All the Pokémon (#0001 to #1025) | 0 | - | 4.98 | 135,401 |
| Name that Bug | 0 | - | 4.12 | 45,645 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,517 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,276 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,981 |
| Elements by Picture | 0 | - | 4.27 | 70,327 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,513 |
| Islands by Picture | 0 | - | 4.28 | 107,805 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,459 |
| Animals by Close-up Image | 0 | - | 4.42 | 219,083 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 46,022 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,489 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,466 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,216 |
| International Footballers by Picture | 0 | - | 4.51 | 56,451 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 286,194 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 108,692 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 51,268 |
| Geography by Picture - A | 0 | - | 4.39 | 60,438 |
| Geography by Picture - D | 0 | - | 4.15 | 45,790 |
| Geography by Picture - F | 0 | - | 4.31 | 51,180 |
| Geography by Picture - G | 0 | - | 4.39 | 48,082 |
| Geography by Picture - J | 0 | - | 4.16 | 38,596 |
| Geography by Picture - K | 0 | - | 4.29 | 33,249 |
| Geography by Picture - C | 0 | - | 4.31 | 57,240 |
| Geography by Picture - L | 0 | - | 4.37 | 59,138 |
| Geography by Picture - M | 0 | - | 4.14 | 40,582 |
| Geography by Picture - P | 0 | - | 4.24 | 42,568 |
| Geography by Picture - S | 0 | - | 4.38 | 47,182 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 282,105 |
| Flag Maths | 0 | - | 4.61 | 57,848 |
| Satellite Images #1 | 0 | - | 4.46 | 130,006 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,698 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,401 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,250 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,227 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,592 |
| Soccer Team Logos | 0 | - | 4.26 | 377,753 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 263,976 |
| Movie Logos | 0 | - | 4.33 | 240,482 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,199 |
| History by Picture - A | 0 | - | 4.26 | 46,153 |
| History by Picture - B | 0 | - | 4.40 | 49,348 |
| History by Picture - C | 0 | - | 4.33 | 54,881 |
| History by Picture - F | 0 | - | 4.35 | 38,196 |
| History by Picture - G | 0 | - | 4.40 | 42,437 |
| History by Picture - D | 0 | - | 4.29 | 44,657 |
| History by Picture - E | 0 | - | 4.25 | 44,236 |
| History by Picture - H | 0 | - | 4.37 | 37,082 |
| History by Picture - K | 0 | - | 4.35 | 33,609 |
| History by Picture - M | 0 | - | 4.17 | 36,393 |
| History by Picture - N | 0 | - | 4.40 | 41,529 |
| History by Picture - O | 0 | - | 4.39 | 36,554 |
| History by Picture - T | 0 | - | 4.20 | 33,543 |
| Name that Nut, Seed, or Bean | 0 | - | 4.57 | 57,795 |
| Countries of the World in Plague Inc. | 0 | - | 4.53 | 30,250 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,695 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,452 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,438,910 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,832 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,871 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,804 |
| Foods by Picture | 0 | - | 3.81 | 226,658 |
| Flowers by Picture | 0 | - | 4.46 | 105,869 |
| Junk Foods by Picture | 0 | - | 3.69 | 96,775 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,951 |
| Christmas by Picture | 0 | - | 4.26 | 28,232 |
| Hats by Picture | 0 | - | 4.21 | 18,019 |
| Weapons by Picture | 0 | - | 4.13 | 21,196 |
| Cars by Picture | 0 | - | 3.89 | 41,827 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,386 |
| Authors by Picture | 0 | - | 4.48 | 25,636 |
| Plants by Picture | 0 | - | 4.24 | 14,523 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 90,953 |
| WWII Figures by Picture | 0 | - | 4.89 | 66,257 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 56,185 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,391 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 66,513 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 59,322 |
| Fish by Picture #1 | 0 | - | 4.41 | 109,062 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,870 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,510 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,352 |
| Birds by Picture #1 | 0 | - | 4.47 | 42,057 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,577 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 165,803 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,765 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,676 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,377 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 72,128 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.14 | 79,776 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,836 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 96,106 |
| Women in History by Picture | 0 | - | 4.25 | 26,030 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,352 |
| Famous Foreheads #2 | 0 | - | 3.17 | 15,858 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 241,522 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 160,210 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 94,165 |
| Musicians by Picture #1 | 0 | - | 4.38 | 110,079 |
| Musicians by Picture #2 | 0 | - | 4.29 | 77,420 |
| Musicians by Picture #4 | 0 | - | 4.07 | 65,629 |
| Musicians by Picture #3 | 0 | - | 4.10 | 59,573 |
| Geography by Picture - E | 0 | - | 3.55 | 47,495 |
| Landforms by Picture | 0 | - | 4.31 | 20,748 |
| Geography by Picture - I | 0 | - | 4.00 | 39,536 |
| Geography by Picture - O | 0 | - | 4.01 | 28,241 |
| Emoji Flags | 0 | - | 4.35 | 44,294 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.69 | 38,235 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,671 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,659 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,988 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 71,288 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,930 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 395,714 |
| Airline Logos | 0 | - | 4.45 | 141,449 |
| Fast Food Logos Quiz | 0 | - | 4.45 | 249,564 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 159,994 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,560 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,324 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,689 |
| Brand Logos That Start With D | 0 | - | 4.37 | 62,228 |
| Brand Logos That Start With L | 0 | - | 4.40 | 61,935 |
| Brand Logos That Start With C | 0 | - | 4.21 | 50,153 |
| Pictures by Letter - H | 0 | - | 3.97 | 30,670 |
| Pictures by Letter - C | 0 | - | 4.00 | 30,413 |
| Pictures by Letter - O | 0 | - | 3.98 | 28,852 |
| Pictures by Letter - Q | 0 | - | 3.92 | 20,579 |
| Pictures by Letter - S | 0 | - | 3.82 | 21,110 |
| Pictures by Letter - W | 0 | - | 3.87 | 20,286 |
| Pictures by Letter - V | 0 | - | 4.00 | 18,118 |
| History by Picture - I | 0 | - | 4.24 | 26,452 |
| History by Picture - J | 0 | - | 4.18 | 26,944 |
| History by Picture - L | 0 | - | 4.18 | 31,021 |
| History by Picture - P | 0 | - | 4.08 | 25,481 |
