| French Animal Words | 0 | - | 4.44 | 133,625 |
| Spanish to English Country Names | 0 | - | 4.85 | 31,969 |
| Animal Varieties Quiz #1 | 0 | - | 4.48 | 92,385 |
| A Whale of a Quiz | 0 | - | 4.41 | 35,958 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,073 |
| Animal Stereotypes | 0 | - | 4.48 | 36,748 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,092 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,228 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,747 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,399 |
| Types of Bears | 0 | - | 4.51 | 143,075 |
| Deadly Animals | 0 | - | 4.03 | 109,871 |
| Famous Animals #1 | 0 | - | 4.03 | 238,793 |
| Famous Animals #2 | 0 | - | 4.02 | 57,320 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,145 |
| Animal Facts | 0 | - | 4.15 | 42,902 |
| Cat Knowledge | 0 | - | 4.49 | 25,717 |
| Bear Knowledge | 0 | - | 4.54 | 34,980 |
| Cow Knowledge | 0 | - | 4.46 | 24,162 |
| Elephant Knowledge | 0 | - | 4.41 | 23,897 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 55,968 |
| Human Taxonomy | 0 | - | 4.68 | 18,836 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,505 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,547 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,379 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,347 |
| Name that Bug | 0 | - | 4.12 | 45,442 |
| Pack Animals | 0 | - | 4.23 | 10,330 |
| Lion Trivia | 0 | - | 4.19 | 16,365 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,594 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,440 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,299 |
| Insect Knowledge #2 | 0 | - | 4.21 | 8,907 |
| Bird in the Answers | 0 | - | 4.10 | 33,255 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,094 |
| Horse Knowledge | 0 | - | 4.45 | 23,935 |
| Snake Knowledge | 0 | - | 4.49 | 18,722 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,786 |
| Animals that Start with L | 0 | - | 4.47 | 101,218 |
| Animals that Start with P | 0 | - | 4.45 | 85,616 |
| Animals that Start with S | 0 | - | 4.49 | 86,777 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,005 |
| Top World Languages | 0 | - | 4.92 | 812,670 |
| Spanish Food Words | 0 | - | 4.64 | 248,753 |
| Animals: No Vowels #2 | 0 | - | 4.57 | 21,433 |
| Spanish Name Translation | 0 | - | 4.14 | 167,934 |
| Words that are Animals | 0 | - | 3.88 | 41,405 |
| Extinct Animals | 0 | - | 4.18 | 27,399 |
| Primate Knowledge | 0 | - | 4.17 | 15,263 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,222 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,208 |
| Animals in the News | 0 | - | 4.37 | 26,711 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,386 |
| Largest Types of Birds | 0 | - | 4.19 | 26,888 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,678 |
| Fish Knowledge | 0 | - | 4.38 | 25,484 |
| Megadiverse Countries | 0 | - | 4.97 | 133,866 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,430 |
| Countries by Official Language | 0 | - | 4.95 | 192,699 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,365 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,940 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,026 |
| Countries in their Native Language | 0 | - | 4.99 | 196,556 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,559 |
| Official European Union Languages | 0 | - | 4.97 | 236,458 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,656 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,732 |
| Song Title Translation - Spanish | 0 | - | 4.56 | 35,700 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,334 |
| Mammals in the Answer | 0 | - | 4.35 | 29,917 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 300,300 |
| Animals A-Z #2 | 0 | - | 4.11 | 66,035 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,514 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,757 |
| Animal Decoder | 0 | - | 4.06 | 15,457 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,191 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,191 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,599 |
| Animals that Start with A | 0 | - | 4.26 | 111,200 |
| Animals that Start with B | 0 | - | 4.31 | 112,686 |
| Animals that Start with C | 0 | - | 4.23 | 92,185 |
| Animals that Start with D | 0 | - | 4.25 | 86,110 |
| Animals that Start with E | 0 | - | 4.28 | 73,360 |
| Animals that Start with F | 0 | - | 4.28 | 106,487 |
| Animals that Start with G | 0 | - | 4.25 | 79,647 |
| Animals that Start with K | 0 | - | 4.06 | 66,162 |
| Animals that Start with M | 0 | - | 4.24 | 83,536 |
| Animals that Start with R | 0 | - | 4.27 | 86,601 |
| Animals that Start with T | 0 | - | 4.32 | 90,614 |
| Animals that Start with H | 0 | - | 4.31 | 85,854 |
| Animals that Start with O | 0 | - | 4.27 | 88,192 |
| Animals that Start with W | 0 | - | 4.35 | 46,818 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,361 |
| Countries with Fjords | 0 | - | 4.93 | 100,180 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,264 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,163 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,672 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,277 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,621 |
| Spanish Loan Words | 0 | - | 4.23 | 45,760 |
| German-Speaking Countries | 0 | - | 4.89 | 123,488 |
| French-Speaking Countries | 0 | - | 4.85 | 268,711 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,289 |
| World's Longest Rivers | 0 | - | 4.87 | 121,023 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 161,719 |
| English Speaking Countries | 0 | - | 4.64 | 355,968 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,367 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,642 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,352 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,581 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 69,058 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,233 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,829 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,504 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,421 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,829 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,579 |
| Countries With No Rivers | 0 | - | 4.96 | 76,008 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,216 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,734 |
| North Sea Countries | 0 | - | 4.92 | 86,587 |
| Black Sea Countries | 0 | - | 4.87 | 60,328 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,010 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,094 |
| Seas on the World Map | 0 | - | 4.96 | 133,781 |
| Seas of the World | 0 | - | 5.00 | 154,245 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,943 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,257 |
| Name an Official Language A-Z | 0 | - | 4.90 | 174,675 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,588 |
| Animal Adjectives | 0 | - | 4.77 | 59,819 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,958 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,543 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,217 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,901 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,078 |
| Animals that Start with N | 0 | - | 3.73 | 31,345 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,330 |
| Geologic Time Scale | 0 | - | 4.46 | 9,916 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,205 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,673 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,669 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,873 |
| Random Name Translation | 0 | - | 4.52 | 42,109 |
| Slavic Languages | 0 | - | 4.67 | 53,955 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,422 |
| Translations of John | 0 | - | 4.53 | 26,803 |
| Italian Name Translation | 0 | - | 4.81 | 44,965 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,427 |
| French Food Words | 0 | - | 4.78 | 193,455 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 59,642 |
| Biggest Animals by Category | 0 | - | 4.18 | 72,928 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,600 |
| Animal Sounds | 0 | - | 4.26 | 191,139 |
| Animals of Australia | 0 | - | 4.52 | 42,141 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,241 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,198 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 48,885 |
| Animal Emojis | 0 | - | 4.69 | 83,270 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,054 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,868 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,751 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,887 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,083 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,841 |
| Birds in the Answer | 0 | - | 4.56 | 52,692 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,608 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,730 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,151 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,140 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,448 |
| Biggest Lakes in the World | 0 | - | 4.62 | 88,979 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,096 |
| Famous Rivers | 0 | - | 4.74 | 104,493 |
| City to River #1 | 0 | - | 4.59 | 35,743 |
| Most Populous River Basins | 0 | - | 4.61 | 39,540 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,108 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 95,909 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,740 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,166 |
| Flowers by Picture | 0 | - | 4.46 | 104,998 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,536 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,071 |
| Italian Food Words | 0 | - | 4.29 | 70,767 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 42,893 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,459 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,927 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,821 |
| Dog Knowledge | 0 | - | 4.46 | 34,166 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,978 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 29,985 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,909 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,306 |
| Biggest City by River | 0 | - | 4.41 | 52,690 |
| Rivers by City | 0 | - | 4.38 | 31,630 |
| City to River #2 - Difficult | 0 | - | 4.63 | 25,767 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,919 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,114 |
| Plants by Picture | 0 | - | 4.24 | 14,332 |
| Trees in the Answer | 0 | - | 4.25 | 45,730 |
