| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,435 |
| Random Symbol to Element | 0 | - | 4.88 | 92,195 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,711 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 175,778 |
| Three Letter Body Parts | 0 | - | 4.40 | 204,890 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,700 |
| Fruits: No Vowels | 0 | - | 4.81 | 98,494 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,087 |
| Science General Knowledge #1 | 0 | - | 4.54 | 163,401 |
| Science General Knowledge #2 | 0 | - | 4.47 | 116,599 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,167 |
| Word Chain - Science | 0 | - | 4.59 | 54,380 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 150,616 |
| The Sun Quiz | 0 | - | 4.93 | 34,092 |
| International Scientific Units | 0 | - | 4.95 | 155,275 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,175 |
| First Names of Scientists | 0 | - | 4.50 | 56,445 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,219,520 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,823 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 102,175 |
| Name a Valid Element | 0 | - | 4.64 | 69,554 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,534 |
| Santa's Reindeer | 0 | - | 4.47 | 191,557 |
| Groups of Two - Science | 0 | - | 4.26 | 48,133 |
| Science Decoder | 0 | - | 4.52 | 28,646 |
| Elements by Symbol | 0 | - | 4.92 | 195,439 |
| Speed Symbol by Element | 0 | - | 4.91 | 103,575 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,423 |
| Noble Gases | 0 | - | 4.89 | 77,420 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 64,029 |
| Periodic Table Symbols | 0 | - | 4.97 | 70,858 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 80,842 |
| Body Part Words | 0 | - | 4.43 | 145,200 |
| Human Body A-Z | 0 | - | 4.51 | 128,344 |
| Name the Virus | 0 | - | 4.86 | 76,224 |
| Citrus Fruits | 0 | - | 3.65 | 41,945 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,568 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,696 |
| Elemental Words | 0 | - | 4.96 | 51,976 |
| Metals of Antiquity | 0 | - | 4.94 | 92,883 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,213 |
| Astronomy Decoder | 0 | - | 4.50 | 37,833 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,651 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,325 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,156 |
| Chess Pieces (With Board and Pictures!) | 0 | - | 4.50 | 77,324 |
| Best-Selling Video Game Consoles | 0 | - | 4.81 | 269,485 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,459 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 79,812 |
| Famous Scientists | 0 | - | 4.57 | 42,441 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,586,527 |
| Famous Duos #2 | 0 | - | 4.21 | 116,562 |
| Famous Duos Quiz #1 | 0 | - | 4.15 | 83,779 |
| Astronomy Quiz | 0 | - | 4.89 | 81,660 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 135,702 |
| Solar System Trivia | 0 | - | 4.93 | 45,993 |
| Body Parts - No Vowels | 0 | - | 4.15 | 25,071 |
| Italian Name Translation | 0 | - | 4.81 | 44,981 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 109,900 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,534 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,081 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,042 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,193 |
| The Seven Continents Map Quiz | 0 | - | 3.89 | 265,350 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 107,783 |
| Disney Animated Characters | 0 | - | 4.88 | 598,987 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,781 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,671 |
| Countries with Four Letters | 0 | - | 4.99 | 418,392 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 169,149 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,522 |
| Name a Valid World City | 0 | - | 4.83 | 70,090 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,777 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,151 |
| Scientific Names | 0 | - | 4.32 | 78,145 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,019 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,901 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 187,217 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,180 |
| Body Part Cliches | 0 | - | 4.43 | 123,030 |
| Most Common Body Part Words | 0 | - | 3.91 | 31,514 |
| Bones of the Human Body | 0 | - | 4.56 | 34,905 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,081 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,212 |
| Sayings About Animals #1 | 0 | - | 4.35 | 107,356 |
| Sayings About Animals #4 | 0 | - | 4.21 | 41,928 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 302,637 |
| Islands by Country #1 | 0 | - | 4.87 | 174,456 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,887 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,261 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,322 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,230 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 113,608 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,264 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,392 |
| Country Chain | 0 | - | 4.96 | 215,671 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,709 |
| Cold War Decoder | 0 | - | 4.83 | 51,907 |
| Eight Most Popular Berries | 0 | - | 4.43 | 98,548 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 66,959 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,366 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,589 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,896 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,737 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,319 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,321 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,480 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,725 |
| Name a Valid Country #6 | 0 | - | 4.95 | 126,343 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,414 |
| Name a Valid Country #8 | 0 | - | 4.85 | 95,963 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 74,192 |
| Name a Valid Country #10 | 0 | - | 4.93 | 41,393 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,236 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,176 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,242 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,346 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,328 |
| Science Multiple Choice #3 | 0 | - | 4.38 | 34,361 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,623 |
| Environmental Issues | 0 | - | 4.54 | 26,717 |
| Chuck Norris Facts | 0 | - | 4.50 | 8,036 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,012 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,381 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.64 | 45,098 |
| "Son" Last Names | 0 | - | 4.48 | 41,721 |
| Shared First Names #2 | 0 | - | 4.53 | 44,975 |
| People with J Initials | 0 | - | 4.51 | 55,213 |
| History Analogies #1 | 0 | - | 4.53 | 89,771 |
| History Analogies #2 | 0 | - | 4.49 | 76,988 |
| History Analogies #3 | 0 | - | 4.61 | 80,421 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,738 |
| English Idioms #1 | 0 | - | 4.45 | 144,305 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,231 |
| Clothing Idioms | 0 | - | 4.41 | 34,052 |
| WWII for Dummies | 0 | - | 4.80 | 103,792 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,263 |
| Are You a Nerd? | 0 | - | 4.35 | 44,494 |
| The Eleven Colors | 0 | - | 4.73 | 233,248 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,403 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,428 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,140 |
| The Only Country ... | 0 | - | 4.91 | 79,827 |
| King in the Answers | 0 | - | 4.42 | 49,613 |
| Super in the Answers | 0 | - | 4.52 | 109,336 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,083 |
| Five Letter Geography #3 | 0 | - | 4.61 | 130,749 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,303 |
| Six Letter Geography #2 | 0 | - | 4.69 | 67,400 |
| Six Letter Geography #3 | 0 | - | 4.53 | 81,424 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 71,973 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 37,661 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,446 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,109 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,574 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,435 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 122,400 |
| Random Countries by Borders | 0 | - | 4.99 | 81,642 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 136,920 |
| Random History by Country | 0 | - | 4.53 | 34,652 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,167 |
| Random Point on Land to Country | 0 | - | 4.99 | 231,760 |
| Random Countries on a Topological Map | 0 | - | 4.90 | 51,179 |
| Geography Decoder | 0 | - | 4.53 | 75,333 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,373 |
| Letter A Geography Chain | 0 | - | 4.53 | 67,314 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,065 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,109 |
| Fruits by Picture | 0 | - | 4.20 | 804,527 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,155 |
| Answers are Beverages | 0 | - | 4.10 | 61,048 |
| Basic Cake Ingredients | 0 | - | 4.22 | 109,744 |
| Types of Food | 0 | - | 4.24 | 89,121 |
| The Foods they Ate | 0 | - | 4.03 | 69,190 |
| Animals Used in Food | 0 | - | 4.29 | 77,629 |
| Most Popular Fruits | 0 | - | 4.16 | 96,198 |
| Healthiest Fruits and Vegetables | 0 | - | 4.04 | 46,635 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 84,691 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,392 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,533 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,481 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,726 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,248 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,746 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,019 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 56,794 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,368 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,648 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,061 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,153 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,092 |
| Elements by Picture | 0 | - | 4.28 | 69,531 |
| Medical Acronyms | 0 | - | 4.43 | 96,162 |
| Medical Vocabulary | 0 | - | 4.54 | 58,516 |
| Two Letter Answers #4 | 0 | - | 4.27 | 88,599 |
| Two Letter Answers #1 | 0 | - | 4.31 | 108,320 |
| Three Letter Answers #2 | 0 | - | 4.09 | 71,578 |
| Two Letter Answers #3 | 0 | - | 4.15 | 82,374 |
| Three Letter Answers #1 | 0 | - | 4.32 | 73,810 |
| Historical Middle Names | 0 | - | 4.16 | 35,373 |
