| 34,235 | Dog Knowledge |
| 33,986 | Mammals by Picture #4 |
| 33,574 | North American Cat-Named Sports Teams |
| 33,409 | European Physical Geography |
| 33,369 | Bird in the Answers |
| 32,998 | Rivers in History |
| 32,961 | Birds by Picture #3 |
| 32,725 | Rivers A-Z |
| 32,668 | Animal Ranges With Whammies |
| 32,600 | Countries With The Most Bird Species |
| 31,736 | Countries with the Most Lakes Over 100 Km² |
| 31,717 | Animals With Color in their Names |
| 31,661 | Rivers by City |
| 31,600 | African Physical Geography |
| 31,527 | Animals that Start with N |
| 31,495 | Australian Animals By Picture |
| 30,383 | Famous Pets |
| 30,291 | UK Rivers Map Quiz |
| 30,088 | Gulfs and Bays on the World Map |
| 29,930 | Mammals in the Answer |
| 29,745 | Largest Lakes in the United States on a Map |
| 29,625 | U.S States with the Most Cows |
| 29,167 | Marketing Slogans for Animals |
| 28,906 | Streets with Tree Names |
| 28,860 | States and Provinces that Touch the Great Lakes |
| 28,897 | South American Animals - Sudden Death |
| 28,737 | Where Does It Grow? Click Quiz #2 |
| 28,548 | Word Puzzles - Animals #1 |
| 28,504 | Bodies of Water by Cities |
| 28,394 | Countries with the Longest Coastline Bordering Each Other |
| 28,224 | Earliest Domestication of Animals |
| 28,162 | Animals - Taxonomy to Common Name |
| 27,946 | Animals in American History |
| 27,904 | Songs with Animals in the Title #2 |
| 27,897 | Famous Dogs |
| 27,807 | Trace the Coast and International Borders of the USA |
| 27,438 | Extinct Animals |
| 26,954 | People with Animal Names Quiz #2 |
| 26,919 | Largest Types of Birds |
| 26,823 | U.S. States by Landform Quiz |
| 26,743 | Animals in the News |
| 26,627 | Name the Sea from a Clue |
| 26,644 | Brand Logos Featuring Animals |
| 26,477 | Cities on the Mediterranean Sea by a Clue |
| 26,345 | U.S. States with the Most Venomous Snake Species |
| 26,262 | Animals: Largest Predators in Each U.S. State |
| 26,084 | Countries with Wild Lions |
| 25,989 | Landforms by Description Quiz |
| 25,952 | Fictional Birds by Picture |
| 25,913 | Animals in British History |
| 25,852 | City to River #2 - Difficult |
| 25,747 | Cat Knowledge |
| 25,543 | Fish Knowledge |
| 25,315 | Animals by Range on a World Map |
| 24,951 | The Five Oceans Map Quiz |
| 24,796 | Word Puzzles - Animals #2 |
| 24,768 | Animals that Appear on a Coat of Arms |
| 24,647 | The Shark Quiz!! |
| 24,397 | Name an Animal A-Z |
| 24,197 | Cow Knowledge |
| 23,974 | Horse Knowledge |
| 23,938 | Famous Lakes Quiz |
| 23,918 | Elephant Knowledge |
| 23,745 | 3 and 4 Letter Birds |
| 23,132 | Animal Group Names |
| 23,117 | Countries by Coastline Per Capita |
| 22,844 | Countries Bordering the Four Color Seas |
| 22,730 | Texas Rivers Map Quiz |
| 22,687 | Horse Vocabulary |
| 22,654 | Rivers on Borders |
| 22,567 | Countries With Two or More Bear Species |
| 22,412 | Top 10 U.S. States With the Most Endemic Species |
| 22,170 | Indian Ocean General Knowledge |
| 21,956 | Dinosaur Trivia |
| 21,736 | Animals: No Vowels #2 |
| 21,356 | U.S. State Birds |
| 21,247 | Old World... or New World? |
| 21,187 | Atlantic Ocean General Knowledge |
| 21,029 | U.S. State Capitals Closest to the Great Lakes |
| 20,763 | U.S. States with Shortest Maximum Distances to the Ocean |
| 20,214 | Largest Land Animals of the Americas |
| 19,954 | Add an Animal - Make a Word |
| 19,619 | Mammal Knowledge #1 |
| 19,617 | Bodies of Water by Satellite Image #2 |
| 19,193 | Lakes in the United States by Clue |
| 18,883 | Human Taxonomy |
| 18,754 | Snake Knowledge |
| 18,682 | Asian Countries with NO Wolves |
| 18,466 | Mammal Knowledge #2 |
| 18,462 | Fish by Picture #2 |
| 18,412 | Famous Trees in Nature and Fiction |
| 18,376 | Birds - Picture Click Quiz |
| 18,315 | U.S. State Capitals Closest to the Mississippi River |
| 18,295 | South American Physical Geography |
| 18,204 | U.S. States Bordering the Great Lakes |
| 17,998 | Books with Animals in the Title #2 |
| 17,994 | Famous Cats |
| 17,628 | Sea Creatures by Picture |
| 17,204 | 3 and 4 Letter Trees |
| 17,123 | Human Biology Multiple Choice Quiz #2 |
| 16,376 | Lion Trivia |
| 16,098 | Northernmost Monkey Populations |
| 15,950 | Largest Rivers by Discharge |
| 15,705 | Bird Knowledge #1 |
| 15,481 | Animal Decoder |
| 15,412 | Multiple Choice Animal Quiz #2 |
| 15,360 | Fish - Sudden Death |
| 15,277 | Primate Knowledge |
| 15,269 | Where Do Musk Oxen Live? |
| 14,485 | U.S. States by Five Longest Rivers |
| 14,374 | Plants by Picture |
| 14,332 | U.S. States with the Most Endangered Species |
| 14,249 | Reptile Picture Quiz |
| 14,127 | Bird Knowledge #2 |
| 14,116 | Animals by Wikipedia Description |
| 13,748 | Longest Rivers in the UK |
| 13,491 | Dog Breeds recognized by the American Kennel Club |
| 12,710 | Largest Land Animals of Africa |
| 12,644 | Oceania Physical Geography |
| 12,524 | Four Letter Mammals Quiz |
| 12,389 | Turkey (The Bird) |
| 12,323 | Insect Knowledge #1 |
| 11,844 | Three Letter Mammals Quiz |
| 11,660 | Human Biology Multiple Choice Quiz #1 |
| 11,433 | World Bee Day Quiz |
| 11,140 | Insects - Sudden Death |
| 11,044 | Animals Word Search |
| 10,979 | 100 Animals by Picture |
| 10,697 | Huge List of Famous Lakes |
| 10,343 | Pack Animals |
| 9,952 | Geologic Time Scale |
| 9,699 | Terrestrial Biomes - Map Quiz |
| 9,629 | 100 Longest Rivers in North America - with a Map |
| 9,593 | Animals by Alternate Etymology |
| 8,928 | Insect Knowledge #2 |
| 8,531 | Reptiles - Sudden Death |
| 8,524 | Which Great Lake? – Click Quiz |
| 8,267 | Largest Land Animals of Asia |
| 7,943 | Seas of the World - Map Quiz |
| 7,352 | Marine Animals - Sudden Death |
| 7,186 | Animals Word Search #2 |
| 7,133 | Straits on the World Map |
| 7,039 | Top Average States Wage Earnings |
| 7,006 | Flying Animals - Sudden Death |
| 6,735 | Ultimate Rivers of the UK (with map) |
| 6,724 | Countries With Most Dogs |
| 6,576 | Click the Scary Animal in the Movie |
| 6,435 | Great Lakes - Map Quiz |
| 5,750 | Longest U.S. Rivers on a Map |
| 5,589 | True or False: Animals - Sudden Death |
| 5,514 | Fastest Animals |
| 5,498 | European Bodies of Water (with Map!) |
| 5,385 | Animal Silhouettes - Map Quiz |
| 5,279 | Five Countries with the Shortest Coastline by Continent |
| 5,195 | Egg Laying Animals - Sudden Death |
| 4,941 | Amphibians - Sudden Death |
| 4,773 | Solve the Secret Animal |
| 4,660 | Dinosaurs - Sudden Death |
| 4,612 | Baltic Sea Countries with an Empty Map |
| 4,553 | 25 Largest Bodies of Water |
| 4,526 | Dinosaur Silhouettes - Map Quiz |
| 4,492 | Click on the Fish (Sudden Death) |
| 4,427 | Animals - Sudden Death |
| 4,384 | 100 Longest Rivers in the World - with a Map |
| 4,376 | US States along the coastline and border |
| 4,350 | Animals Word Search #3 |
| 4,308 | Click to Complete the Movie Title - Animals |
| 4,161 | Countries with a Longer Coastline than Their Neighbors |
| 4,138 | 100 Longest Rivers in South America - with a Map |
| 4,140 | 100 Longest Rivers in Africa - with a Map |
| 4,083 | Largest River Basins by Area on a Map |
| 3,969 | Trace the coast of the world (Hard(no map)) |
| 3,940 | Oregon Rivers - Map Quiz |
| 3,892 | River Deltas on the Map |
| 3,888 | 100 Longest Rivers in Asia - with a Map |
| 3,845 | Identify the Snakes by Picture 🐍 |
| 3,806 | German Rivers on a Map |
| 3,773 | Trace the Coast of Europe by Guessing the Biggest Cities |
| 3,708 | Major Rivers of the World - Source US Dept of Commerce, NOAA |
| 3,705 | Confusing Animal Names - Picture Quiz |
| 3,661 | Herbivores - Sudden Death |
| 3,647 | Countries Closest to the Red Sea |
| 3,570 | Animals without legs - Sudden Death |
| 3,560 | Types of Sharks with Pictures (Easy) |
| 3,551 | Countries with Great Apes |
| 3,482 | All Valid Dinosaur Genera |
| 3,425 | They’re Rocks - Sudden Death |
| 3,387 | Monkeys and Apes - Picture Click Quiz |
| 3,341 | Peninsulas A-Z |
| 3,323 | Animal Look-Alikes #1 |
| 3,324 | English Football Clubs with Bird Nicknames |
| 3,295 | Largest Terrestrial Animal by Country (with Map) |
| 3,235 | Top 100 Dog Names *2011 |
| 3,170 | Parts of an Animal Cell with a Map |
| 3,073 | Famous Fictional Dogs - Sudden Death |
| 3,046 | Name a Valid Country on Each River |
| 3,030 | Longest Rivers - Sudden Death |
| 3,009 | UK Cities, Towns & their Rivers (with map) |
