| French Animal Words | 0 | - | 4.44 | 134,319 |
| Spanish to English Country Names | 0 | - | 4.86 | 32,905 |
| Animal Varieties #1 | 0 | - | 4.48 | 92,784 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,062 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,336 |
| Animal Stereotypes | 0 | - | 4.48 | 37,158 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,010 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,587 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,427 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,612 |
| Types of Bears | 0 | - | 4.51 | 143,303 |
| Deadly Animals | 0 | - | 4.03 | 110,198 |
| Famous Animals #1 | 0 | - | 4.03 | 239,571 |
| Famous Animals #2 | 0 | - | 4.02 | 57,481 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,291 |
| Animal Facts | 0 | - | 4.15 | 42,967 |
| Cat Knowledge | 0 | - | 4.48 | 25,791 |
| Bear Knowledge | 0 | - | 4.54 | 35,064 |
| Cow Knowledge | 0 | - | 4.46 | 24,234 |
| Elephant Knowledge | 0 | - | 4.41 | 23,949 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,143 |
| Human Taxonomy | 0 | - | 4.68 | 18,901 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,655 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 63,988 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,501 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,431 |
| Name that Bug | 0 | - | 4.12 | 45,538 |
| Pack Animals | 0 | - | 4.17 | 10,371 |
| Lion Trivia | 0 | - | 4.19 | 16,397 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,644 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,487 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,367 |
| Insect Knowledge #2 | 0 | - | 4.22 | 8,957 |
| Bird in the Answers | 0 | - | 4.11 | 33,593 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,170 |
| Horse Knowledge | 0 | - | 4.46 | 24,035 |
| Snake Knowledge | 0 | - | 4.49 | 18,798 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,519 |
| Animals that Start with L | 0 | - | 4.47 | 101,797 |
| Animals that Start with P | 0 | - | 4.45 | 86,036 |
| Animals that Start with S | 0 | - | 4.49 | 87,237 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,664 |
| Top World Languages | 0 | - | 4.92 | 820,476 |
| Spanish Food Words | 0 | - | 4.67 | 250,985 |
| Animals: No Vowels #2 | 0 | - | 4.49 | 22,096 |
| Spanish Name Translation | 0 | - | 4.13 | 168,452 |
| Words that are Animals | 0 | - | 3.88 | 41,452 |
| Extinct Animals | 0 | - | 4.16 | 27,492 |
| Primate Knowledge | 0 | - | 4.17 | 15,300 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,289 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,249 |
| Animals in the News | 0 | - | 4.37 | 26,781 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,446 |
| Largest Types of Birds | 0 | - | 4.19 | 26,957 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,729 |
| Fish Knowledge | 0 | - | 4.38 | 25,625 |
| Megadiverse Countries | 0 | - | 4.96 | 134,785 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 81,291 |
| Countries by Official Language | 0 | - | 4.95 | 194,673 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,608 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,588 |
| Countries in their Native Language | 0 | - | 4.99 | 198,221 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,026 |
| Official European Union Languages | 0 | - | 4.97 | 238,210 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,663 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,575 |
| Song Title Translation - Spanish | 0 | - | 4.57 | 35,798 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,412 |
| Mammals in the Answer | 0 | - | 4.35 | 29,954 |
| Three Letter Animals Quiz | 0 | - | 3.96 | 300,854 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,342 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,626 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,848 |
| Animal Decoder | 0 | - | 4.06 | 15,518 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,255 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,430 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,706 |
| Animals that Start with A | 0 | - | 4.26 | 111,926 |
| Animals that Start with B | 0 | - | 4.31 | 113,620 |
| Animals that Start with C | 0 | - | 4.23 | 92,795 |
| Animals that Start with D | 0 | - | 4.25 | 86,839 |
| Animals that Start with E | 0 | - | 4.28 | 73,793 |
| Animals that Start with F | 0 | - | 4.28 | 106,987 |
| Animals that Start with G | 0 | - | 4.25 | 80,030 |
| Animals that Start with K | 0 | - | 4.07 | 66,473 |
| Animals that Start with M | 0 | - | 4.23 | 83,919 |
| Animals that Start with R | 0 | - | 4.27 | 87,311 |
| Animals that Start with T | 0 | - | 4.32 | 91,369 |
| Animals that Start with H | 0 | - | 4.31 | 86,231 |
| Animals that Start with O | 0 | - | 4.27 | 88,514 |
| Animals that Start with W | 0 | - | 4.36 | 47,100 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,773 |
| Countries with Fjords | 0 | - | 4.94 | 100,800 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,616 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,427 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,337 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,592 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,295 |
| Spanish Loan Words | 0 | - | 4.23 | 45,856 |
| German-Speaking Countries | 0 | - | 4.91 | 145,370 |
| Italian Name Translation | 0 | - | 4.82 | 46,411 |
| French-Speaking Countries | 0 | - | 4.85 | 270,256 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,335 |
| World's Longest Rivers | 0 | - | 4.89 | 136,223 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 163,434 |
| English Speaking Countries | 0 | - | 4.64 | 357,133 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,670 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,305 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,761 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,063 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 69,666 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,453 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,876 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,548 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,674 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,645 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,270 |
| Countries With No Rivers | 0 | - | 4.96 | 76,715 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,995 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,986 |
| North Sea Countries | 0 | - | 4.92 | 87,316 |
| Black Sea Countries | 0 | - | 4.87 | 60,579 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,327 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,425 |
| Seas on the World Map | 0 | - | 4.96 | 135,166 |
| Seas of the World | 0 | - | 5.00 | 156,454 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,195 |
| Places in their Native Language #2 | 0 | - | 4.79 | 133,959 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,663 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,785 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,297 |
| Animal Adjectives | 0 | - | 4.77 | 59,969 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,380 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,659 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,566 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,181 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,694 |
| Animals that Start with N | 0 | - | 3.73 | 31,607 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,494 |
| Geologic Time Scale | 0 | - | 4.46 | 10,003 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,632 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,913 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,375 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,362 |
| Random Name Translation | 0 | - | 4.52 | 42,377 |
| Slavic Languages | 0 | - | 4.68 | 54,286 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,537 |
| Translations of John | 0 | - | 4.53 | 27,062 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,825 |
| French Food Words | 0 | - | 4.80 | 194,634 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,794 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,099 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,970 |
| Animal Sounds | 0 | - | 4.26 | 191,581 |
| Animals of Australia | 0 | - | 4.52 | 42,295 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,400 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,353 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 49,123 |
| Animal Emojis | 0 | - | 4.73 | 84,183 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,466 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,345 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,063 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,093 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,546 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,180 |
| Birds in the Answer | 0 | - | 4.56 | 52,809 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,823 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,791 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,217 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,213 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,596 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,331 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,347 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,443 |
| Famous Rivers | 0 | - | 4.75 | 104,896 |
| City to River #1 | 0 | - | 4.59 | 35,833 |
| Most Populous River Basins | 0 | - | 4.55 | 39,684 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,315 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,711 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,045 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,755 |
| Flowers by Picture | 0 | - | 4.46 | 105,601 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 219,343 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,911 |
| Italian Food Words | 0 | - | 4.29 | 71,204 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 43,024 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,574 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,304 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,129 |
| Dog Knowledge | 0 | - | 4.46 | 34,332 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,007 |
| Gulfs and Bays on the World Map | 0 | - | 4.61 | 30,206 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,993 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,503 |
| Biggest City by River | 0 | - | 4.41 | 52,828 |
| Rivers by City | 0 | - | 4.38 | 31,702 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,010 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,008 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,458 |
| Plants by Picture | 0 | - | 4.24 | 14,428 |
