| Episode Number | Episode Name | About |
| 101 | History, Transportation, Astronomy | From Columbus to Ponce de Leon, the horse to horsepower, and Galileo to the order of the planets. |
| 102 | Animals, Geography of North America, Math | From insects to polar bears, the Great Lakes to the Not So Great Lakes, and the Pythagorean Theorem to endless Pi. |
| 103 | Money, Plans, World Geography | From dollar bills to financial abbreviations, fruits to chromosomes, and a new ocean to a globe gone south. |
| 104 | Government, Sports, Music | From presidents to the Supreme Court, the first Olympics to Jackie Robinson, and orchestras to air guitar. |
| 105 | Climate, Language, Health | From the last ice age to the hottest place on Earth, an antonym for antonym to a metaphor, and calories to the secret about stretching. |
| 106 | Inventors, Agriculture, Mythology | From the light bulb to the internet, livestock to the real cash crop, and Zeus to the Minotaur. |
| 107 | Explorers, Culture, Economics | From the South Pole to the moon, slurping soup to feng shui, and purchasing power to monopoly. |
| 108 | Human Skeleton, Visual Art, American History | From your head to your phalanges, Van Gogh to the rainbow, and the American Revolution to the industrial one. |
| 109 | Natural History Early Technologies, Food Science | From sabertooth cats to America's first people, the history of pencils to the history of knives, and why popcorn pops and we have only five tastes. |
| 110 | Civil War, Business, Weather | From Lincoln to Lee, CEO's to the S&P, and tornados to the speed of lightning. |
| 111 | U.S. Presidents, Chemistry, Performing Arts | From Obama and Reagan, hot air to hydrogen, and Chaplin to Buster Keaton. |
| 112 | Medieval Times, Astronomy, Energy | From the Crusades to catapults, Earth's rotation to Jupiter's moons, and OPEC to windmills. |
| 113 | U.S. Capitals, Oceans, Dinosaurs | From the smallest capital to the highest, the Great Barrier Reef to volcanoes, and T-Rex to ancient birds. |
| 114 | Sports, Geography, Science | From the first Olympic gold to the oldest Olympic athlete, the longest geographical name to countries within countries, and the brains of geniuses to animals with accents. |
| 115 | Health, Food, History | From your number one fear to hiccups, the history of the baker's dozen to the origin of orange, and blitzkriegs to "bless your." |
| 116 | Science, People, Animals | From the foundation of the universe to a jiffy, spies who become leaders to Nobel Prizes, and speedy hippos to weird pets. |
| 117 | Technology, Travel, Music | From the first photograph to the creation of the Internet, the wonders of the world to death by lightning, and platinum albums to 5-year old composers. |
| 118 | Geography, Culture, History | From the first Academy Awards to the easternmost state, pirates to the discovery of Antarctica, and unfurnished German apartments to politely sticking out your tongue. |
| 119 | Health, History, Science | The happiest country; the word "robot"; predictions. |
| 120 | Animals, History, People | From naked mole rats to the animals of 1492, the real reason it's called America to Civil War surgeries, and Charles Lindbergh to Jackie Robinson. |
| 121 | Geography, Science, Health | From the reason North is up to the fight over the number of oceans, the history of climate change to the truth about vegetables, and the skinny on stretching to the medical benefit of hugs. |
| 122 | Science, History, the Arts | From the reason cheese tastes good to the air pressure on Everest, the first pencil to the poleaxe, and Harry Houdini to Charlie Chaplin. |