| French Animal Words | 0 | - | 4.44 | 135,088 |
| Spanish Animal Words | 0 | - | 4.53 | 96,008 |
| Animal Varieties #1 | 0 | - | 4.48 | 93,429 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,177 |
| Animal Varieties #3 | 0 | - | 4.50 | 55,696 |
| Animal Stereotypes | 0 | - | 4.48 | 37,559 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,969 |
| Deadly Animals | 0 | - | 4.02 | 110,855 |
| Famous Animals #1 | 0 | - | 4.03 | 240,050 |
| Famous Animals #2 | 0 | - | 4.02 | 57,613 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,437 |
| Animal Facts | 0 | - | 4.15 | 43,060 |
| Cat Knowledge | 0 | - | 4.49 | 25,888 |
| Cow Knowledge | 0 | - | 4.46 | 24,322 |
| Elephant Knowledge | 0 | - | 4.41 | 24,024 |
| Human Taxonomy | 0 | - | 4.70 | 19,000 |
| Types of Bears | 0 | - | 4.50 | 143,991 |
| Bear Knowledge | 0 | - | 4.54 | 35,184 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,408 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,649 |
| Words Containing Animals #2 | 0 | - | 4.09 | 34,511 |
| Name that Bug | 0 | - | 4.12 | 45,658 |
| Pack Animals | 0 | - | 4.20 | 10,445 |
| Lion Trivia | 0 | - | 4.19 | 16,449 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,740 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,584 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,465 |
| Insect Knowledge #2 | 0 | - | 4.22 | 9,021 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,849 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 64,435 |
| Bird in the Answers | 0 | - | 4.11 | 34,024 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,255 |
| Horse Knowledge | 0 | - | 4.46 | 24,148 |
| Snake Knowledge | 0 | - | 4.49 | 18,890 |
| Animals that Start with L | 0 | - | 4.47 | 102,540 |
| Animals that Start with P | 0 | - | 4.45 | 86,554 |
| Animals that Start with S | 0 | - | 4.49 | 87,757 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,029 |
| Top World Languages | 0 | - | 4.92 | 831,191 |
| Words that are Animals | 0 | - | 3.85 | 41,522 |
| Extinct Animals | 0 | - | 4.13 | 27,592 |
| Primate Knowledge | 0 | - | 4.17 | 15,353 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,400 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,323 |
| Animals in the News | 0 | - | 4.37 | 26,845 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,524 |
| Animals: No Vowels #2 | 0 | - | 4.51 | 22,865 |
| Largest Types of Birds | 0 | - | 4.19 | 27,034 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,786 |
| Fish Knowledge | 0 | - | 4.38 | 25,770 |
| Megadiverse Countries | 0 | - | 4.96 | 148,950 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 82,235 |
| Countries by Official Language | 0 | - | 4.95 | 196,209 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,602 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,929 |
| Countries in their Native Language | 0 | - | 4.99 | 199,949 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,850 |
| Official European Union Languages | 0 | - | 4.97 | 240,351 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,800 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,131 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,482 |
| Animals A-Z #1 | 0 | - | 4.40 | 93,972 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,557 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,814 |
| Animals that Start with A | 0 | - | 4.26 | 112,568 |
| Animals that Start with B | 0 | - | 4.31 | 114,514 |
| Animals that Start with C | 0 | - | 4.21 | 93,639 |
| Animals that Start with D | 0 | - | 4.25 | 87,374 |
| Animals that Start with E | 0 | - | 4.28 | 74,263 |
| Animals that Start with F | 0 | - | 4.28 | 107,546 |
| Animals that Start with G | 0 | - | 4.25 | 80,477 |
| Animals that Start with K | 0 | - | 4.07 | 66,808 |
| Animals that Start with M | 0 | - | 4.23 | 84,348 |
| Animals that Start with R | 0 | - | 4.28 | 87,735 |
| Animals that Start with T | 0 | - | 4.32 | 92,181 |
| Animals that Start with H | 0 | - | 4.31 | 86,652 |
| Animals that Start with O | 0 | - | 4.27 | 88,885 |
| Animals that Start with W | 0 | - | 4.36 | 47,425 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,755 |
| Mammals in the Answer | 0 | - | 4.35 | 30,006 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 301,540 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,743 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,933 |
| Animal Decoder | 0 | - | 4.06 | 15,613 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,326 |
| Animals by Skeleton Image | 0 | - | 4.81 | 47,043 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,829 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,239 |
| Countries with Fjords | 0 | - | 4.94 | 101,584 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,947 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,752 |
| Spanish to English Country Names | 0 | - | 4.86 | 34,014 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,981 |
| Top World Languages A-Z | 0 | - | 4.81 | 37,021 |
| German-Speaking Countries | 0 | - | 4.92 | 146,089 |
| Italian Name Translation | 0 | - | 4.83 | 48,196 |
| French-Speaking Countries | 0 | - | 4.85 | 271,871 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,404 |
| Animals that Start with N | 0 | - | 3.73 | 31,897 |
| World's Longest Rivers | 0 | - | 4.89 | 137,771 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 165,860 |
| English Speaking Countries | 0 | - | 4.64 | 358,422 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,037 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,208 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,458 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,655 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 70,505 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,992 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,247 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,974 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,807 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,924 |
| Places in their Native Language #2 | 0 | - | 4.80 | 135,071 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 128,470 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,941 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,626 |
| World's Longest Rivers on a Map | 0 | - | 4.90 | 88,449 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,994 |
| Countries With No Rivers | 0 | - | 4.96 | 77,254 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 63,137 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,224 |
| North Sea Countries | 0 | - | 4.92 | 87,784 |
| Black Sea Countries | 0 | - | 4.87 | 60,798 |
| Countries That Touch the Red Sea | 0 | - | 4.91 | 65,660 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,747 |
| Seas on the World Map | 0 | - | 4.96 | 136,109 |
| Seas of the World | 0 | - | 5.00 | 158,820 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,395 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,425 |
| Name an Official Language A-Z | 0 | - | 4.91 | 177,138 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 151,234 |
| Animal Adjectives | 0 | - | 4.77 | 60,242 |
| Animals by Close-up Image | 0 | - | 4.42 | 219,522 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 46,062 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,543 |
| Mammals by Picture #1 | 0 | - | 4.69 | 92,556 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,695 |
| Geologic Time Scale | 0 | - | 4.41 | 10,083 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 75,070 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,193 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 116,092 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,891 |
| Random Name Translation | 0 | - | 4.52 | 42,892 |
| Slavic Languages | 0 | - | 4.67 | 54,776 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,702 |
| Translations of John | 0 | - | 4.53 | 27,394 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,300 |
| French Food Words | 0 | - | 4.80 | 196,267 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,973 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,318 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 138,544 |
| Animal Sounds | 0 | - | 4.27 | 192,125 |
| Animals of Australia | 0 | - | 4.53 | 42,525 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,647 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,510 |
| Animal Emojis | 0 | - | 4.74 | 85,435 |
| Fish by Picture #1 | 0 | - | 4.41 | 109,133 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,956 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,559 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,382 |
| Birds by Picture #1 | 0 | - | 4.47 | 42,133 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,624 |
| Birds in the Answer | 0 | - | 4.56 | 52,944 |
| North American Bird-Named Teams | 0 | - | 4.44 | 68,033 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,859 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,325 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,297 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,740 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,981 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,705 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,827 |
| Famous Rivers | 0 | - | 4.75 | 105,310 |
| City to River #1 | 0 | - | 4.59 | 35,919 |
| Most Populous River Basins | 0 | - | 4.55 | 39,836 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,514 |
| Seas that Touch the Most Countries | 0 | - | 4.64 | 97,172 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,316 |
| Flowers by Picture | 0 | - | 4.46 | 105,890 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 223,079 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,998 |
| Spanish Name Translation | 0 | - | 4.13 | 169,402 |
| Spanish Food Words | 0 | - | 4.68 | 254,325 |
| Italian Food Words | 0 | - | 4.27 | 71,788 |
| Animal Idioms Quiz #1 | 0 | - | 4.30 | 43,218 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,778 |
| Word Scramble - Random Animals | 0 | - | 4.38 | 49,509 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,785 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,538 |
| Dog Knowledge | 0 | - | 4.46 | 34,667 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,037 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,441 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,086 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,769 |
| Rivers by City | 0 | - | 4.38 | 31,784 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,269 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,101 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,460 |
| Plants by Picture | 0 | - | 4.24 | 14,532 |
| Trees in the Answer | 0 | - | 4.23 | 45,947 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,259 |
