| French Animal Words | 0 | - | 4.44 | 133,948 |
| Spanish Animal Words | 0 | - | 4.53 | 95,492 |
| German-Speaking Countries | 0 | - | 4.89 | 126,839 |
| Animal Varieties #1 | 0 | - | 4.48 | 92,563 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,009 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,188 |
| Animal Stereotypes | 0 | - | 4.48 | 36,938 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,490 |
| Types of Bears | 0 | - | 4.51 | 143,166 |
| Deadly Animals | 0 | - | 4.03 | 110,004 |
| Famous Animals #1 | 0 | - | 4.03 | 238,982 |
| Famous Animals #2 | 0 | - | 4.02 | 57,366 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,184 |
| Animal Facts | 0 | - | 4.15 | 42,929 |
| Cat Knowledge | 0 | - | 4.48 | 25,748 |
| Bear Knowledge | 0 | - | 4.54 | 35,013 |
| Cow Knowledge | 0 | - | 4.46 | 24,197 |
| Elephant Knowledge | 0 | - | 4.41 | 23,918 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,035 |
| Human Taxonomy | 0 | - | 4.68 | 18,883 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,575 |
| Animals: No Vowels #1 | 0 | - | 4.55 | 63,756 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,440 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,388 |
| Name that Bug | 0 | - | 4.12 | 45,489 |
| Pack Animals | 0 | - | 4.23 | 10,343 |
| Lion Trivia | 0 | - | 4.19 | 16,378 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,619 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,467 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,323 |
| Insect Knowledge #2 | 0 | - | 4.21 | 8,929 |
| Bird in the Answers | 0 | - | 4.10 | 33,372 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,127 |
| Horse Knowledge | 0 | - | 4.45 | 23,974 |
| Snake Knowledge | 0 | - | 4.49 | 18,754 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,969 |
| Animals that Start with L | 0 | - | 4.47 | 101,635 |
| Animals that Start with P | 0 | - | 4.45 | 85,891 |
| Animals that Start with S | 0 | - | 4.49 | 87,074 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,977 |
| Top World Languages | 0 | - | 4.92 | 815,866 |
| Animals: No Vowels #2 | 0 | - | 4.53 | 21,744 |
| Words that are Animals | 0 | - | 3.88 | 41,429 |
| Extinct Animals | 0 | - | 4.19 | 27,438 |
| Primate Knowledge | 0 | - | 4.17 | 15,277 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,249 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,224 |
| Animals in the News | 0 | - | 4.37 | 26,744 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,412 |
| Largest Types of Birds | 0 | - | 4.19 | 26,919 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,705 |
| Fish Knowledge | 0 | - | 4.38 | 25,544 |
| Megadiverse Countries | 0 | - | 4.96 | 134,479 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,735 |
| Countries by Official Language | 0 | - | 4.95 | 193,317 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,896 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,196 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,864 |
| Countries in their Native Language | 0 | - | 4.99 | 197,123 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,781 |
| Official European Union Languages | 0 | - | 4.97 | 237,420 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,182 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,290 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,374 |
| Mammals in the Answer | 0 | - | 4.35 | 29,930 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 300,530 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,131 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,549 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,796 |
| Animal Decoder | 0 | - | 4.06 | 15,481 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,214 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,289 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,649 |
| Animals that Start with A | 0 | - | 4.26 | 111,731 |
| Animals that Start with B | 0 | - | 4.31 | 113,436 |
| Animals that Start with C | 0 | - | 4.23 | 92,580 |
| Animals that Start with D | 0 | - | 4.25 | 86,698 |
| Animals that Start with E | 0 | - | 4.28 | 73,661 |
| Animals that Start with F | 0 | - | 4.28 | 106,801 |
| Animals that Start with G | 0 | - | 4.25 | 79,900 |
| Animals that Start with K | 0 | - | 4.07 | 66,382 |
| Animals that Start with M | 0 | - | 4.23 | 83,773 |
| Animals that Start with R | 0 | - | 4.27 | 87,166 |
| Animals that Start with T | 0 | - | 4.32 | 91,216 |
| Animals that Start with H | 0 | - | 4.31 | 86,074 |
| Animals that Start with O | 0 | - | 4.27 | 88,382 |
| Animals that Start with W | 0 | - | 4.36 | 46,994 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,463 |
| Countries with Fjords | 0 | - | 4.93 | 100,374 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,393 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,276 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,367 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,162 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,425 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,837 |
| Italian Name Translation | 0 | - | 4.81 | 45,665 |
| French-Speaking Countries | 0 | - | 4.85 | 269,396 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,310 |
| World's Longest Rivers | 0 | - | 4.88 | 121,393 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 162,465 |
| English Speaking Countries | 0 | - | 4.64 | 356,433 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,487 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,919 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,002 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,811 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 69,319 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,408 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,029 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,546 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,320 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,845 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,524 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,539 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,059 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,786 |
| Countries With No Rivers | 0 | - | 4.96 | 76,145 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,407 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,796 |
| North Sea Countries | 0 | - | 4.92 | 86,714 |
| Black Sea Countries | 0 | - | 4.87 | 60,389 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,104 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,180 |
| Seas on the World Map | 0 | - | 4.96 | 134,600 |
| Seas of the World | 0 | - | 5.00 | 155,089 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,006 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,430 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,160 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,896 |
| Animal Adjectives | 0 | - | 4.77 | 59,889 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,125 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,195 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,377 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,022 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,338 |
| Animals that Start with N | 0 | - | 3.73 | 31,529 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,373 |
| Geologic Time Scale | 0 | - | 4.46 | 9,960 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,362 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,746 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,934 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,069 |
| Random Name Translation | 0 | - | 4.52 | 42,229 |
| Slavic Languages | 0 | - | 4.68 | 54,104 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,469 |
| Translations of John | 0 | - | 4.53 | 26,935 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,599 |
| French Food Words | 0 | - | 4.78 | 194,020 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,724 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,004 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,759 |
| Animal Sounds | 0 | - | 4.26 | 191,335 |
| Animals of Australia | 0 | - | 4.52 | 42,204 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,300 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,272 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 48,987 |
| Animal Emojis | 0 | - | 4.73 | 83,595 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,240 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,091 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,878 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,988 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,303 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,002 |
| Birds in the Answer | 0 | - | 4.56 | 52,736 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,705 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,751 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,190 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,170 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,504 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,121 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,186 |
| Famous Rivers | 0 | - | 4.74 | 104,649 |
| City to River #1 | 0 | - | 4.59 | 35,766 |
| Most Populous River Basins | 0 | - | 4.61 | 39,588 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,175 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,048 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,846 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,397 |
| Flowers by Picture | 0 | - | 4.46 | 105,102 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 217,672 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,453 |
| Spanish Name Translation | 0 | - | 4.13 | 168,159 |
| Spanish Food Words | 0 | - | 4.64 | 249,762 |
| Song Title Translation - German | 0 | - | 3.80 | 11,706 |
| Italian Food Words | 0 | - | 4.29 | 70,959 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 42,948 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,514 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,095 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,962 |
| Dog Knowledge | 0 | - | 4.46 | 34,237 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,990 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,089 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,939 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,379 |
| Biggest City by River | 0 | - | 4.41 | 52,732 |
| Rivers by City | 0 | - | 4.38 | 31,661 |
| City to River #2 - Difficult | 0 | - | 4.64 | 25,854 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,952 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,698 |
| Plants by Picture | 0 | - | 4.24 | 14,374 |
| Trees in the Answer | 0 | - | 4.25 | 45,779 |
