| Groups of Two - Science | 0 | - | 4.26 | 48,374 |
| Random Symbol to Element | 0 | - | 4.88 | 93,265 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,305 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,590 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,099,240 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 46,276 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,844 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,093 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,387 |
| International Scientific Units | 0 | - | 4.95 | 157,390 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 63,009 |
| Science General Knowledge #1 | 0 | - | 4.54 | 166,375 |
| Science General Knowledge #2 | 0 | - | 4.48 | 119,035 |
| Science General Knowledge #3 | 0 | - | 4.56 | 109,061 |
| Word Chain - Science | 0 | - | 4.59 | 54,984 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,213 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,190 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,363 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 80,179 |
| The Only Country ... | 0 | - | 4.91 | 81,422 |
| First Names of Scientists | 0 | - | 4.51 | 57,000 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,249,135 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,108 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 103,101 |
| Name a Valid Element | 0 | - | 4.67 | 70,182 |
| Geographic Groups of Four #1 | 0 | - | 4.70 | 176,190 |
| Geographic Groups of Five #1 | 0 | - | 4.47 | 120,659 |
| Geographic Groups of Seven #1 | 0 | - | 4.63 | 141,167 |
| Geographic Groups of Two #2 | 0 | - | 4.67 | 115,268 |
| Geographic Groups of Six #2 | 0 | - | 4.53 | 53,312 |
| Geographic Groups of Two #3 | 0 | - | 4.46 | 84,156 |
| Geographic Groups of Four #2 | 0 | - | 4.77 | 80,864 |
| Geographic Groups of Five #2 | 0 | - | 4.74 | 64,042 |
| Geographic Groups of Three #2 | 0 | - | 4.55 | 69,926 |
| Geographic Groups of Two #4 | 0 | - | 4.45 | 78,433 |
| Science Decoder | 0 | - | 4.52 | 28,795 |
| Elements by Symbol | 0 | - | 4.92 | 197,725 |
| Speed Symbol by Element | 0 | - | 4.90 | 104,985 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,411 |
| Noble Gases | 0 | - | 4.89 | 78,445 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,752 |
| Periodic Table Symbols | 0 | - | 4.97 | 72,728 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,943 |
| Name the Virus | 0 | - | 4.87 | 76,892 |
| Groups of Things - Sports | 0 | - | 4.27 | 67,841 |
| Groups of Things - History #2 | 0 | - | 4.39 | 79,437 |
| History Groups of Two | 0 | - | 4.31 | 40,769 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,883 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,764 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,743 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,342 |
| Geographic Groups of Three #1 | 0 | - | 4.35 | 96,782 |
| Geographic Groups of Six #1 | 0 | - | 4.27 | 92,875 |
| Geographic Groups of Eight | 0 | - | 4.39 | 58,840 |
| Geographic Groups of Seven #2 | 0 | - | 4.05 | 35,477 |
| Books by Clue #2 | 0 | - | 4.43 | 26,715 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,811 |
| Famous Scientists | 0 | - | 4.57 | 42,726 |
| Citrus Fruits | 0 | - | 3.63 | 42,097 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,083 |
| Elemental Words | 0 | - | 4.96 | 52,393 |
| Metals of Antiquity | 0 | - | 4.95 | 93,616 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,827 |
| Astronomy Decoder | 0 | - | 4.49 | 38,111 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,472 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 275,849 |
| Musical Groups of Things | 0 | - | 4.37 | 31,229 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.70 | 66,428 |
| World Cities by Clue #2 | 0 | - | 4.49 | 50,340 |
| Cities that End in A by Clue | 0 | - | 4.55 | 53,082 |
| Cities that End in O by Clue | 0 | - | 4.56 | 61,374 |
| Cities that End in N by Clue | 0 | - | 4.55 | 54,224 |
| Cities that End in I by Clue | 0 | - | 4.62 | 57,417 |
| Cities that End in S by Clue | 0 | - | 4.57 | 45,047 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,576 |
| Astronomy Quiz | 0 | - | 4.90 | 82,840 |
| Solar System Trivia | 0 | - | 4.93 | 46,821 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,020 |
| Italian Name Translation | 0 | - | 4.83 | 47,256 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 111,055 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,419 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,959 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,817 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 108,917 |
| MLB Baseball Groups of Things | 0 | - | 4.09 | 18,582 |
| Literary Groups of Things | 0 | - | 4.26 | 30,658 |
| Random Geographic Groups of Six | 0 | - | 4.37 | 49,993 |
| Top Five Languages by Language Family | 0 | - | 4.99 | 54,160 |
| Books by Clue #1 | 0 | - | 4.36 | 25,800 |
| Random Cities by Clue | 0 | - | 4.53 | 42,773 |
| MLB Baseball Team Names by Clue | 0 | - | 4.35 | 67,801 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 170,262 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,115 |
| Name a Valid World City | 0 | - | 4.84 | 71,482 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,940 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,633,387 |
| Scientific Names | 0 | - | 4.32 | 78,569 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,726 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,036 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,113 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,623 |
| Body Part Cliches | 0 | - | 4.44 | 123,553 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 215,976 |
| Bones of the Human Body | 0 | - | 4.51 | 43,067 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,337 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,105,771 |
| 7 Deadly Sins | 0 | - | 4.88 | 401,556 |
| Disney Animated Characters | 0 | - | 4.88 | 601,968 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,591 |
| Cities that End in R by Clue | 0 | - | 4.68 | 18,928 |
| Cities that End in M by Clue | 0 | - | 4.56 | 21,261 |
| U.S. Cities by Clue #1 | 0 | - | 4.28 | 48,112 |
| U.S. Cities by Clue #2 | 0 | - | 4.08 | 31,692 |
| World Cities by Clue #1 | 0 | - | 4.30 | 74,213 |
| World Cities by Clue Quiz #3 | 0 | - | 4.31 | 48,595 |
| World Cities by Clue Quiz #4 | 0 | - | 4.41 | 24,021 |
| Countries with Four Letters | 0 | - | 4.99 | 423,397 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,556 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.45 | 67,976 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,431 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,955 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 305,550 |
| Islands by Country #1 | 0 | - | 4.90 | 175,501 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,658 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,052 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,823 |
| Groups of Two - Movies | 0 | - | 3.97 | 23,437 |
| Country Chain | 0 | - | 4.96 | 217,464 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 217,437 |
| Cold War Decoder | 0 | - | 4.83 | 52,450 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,483 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 50,159 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,805 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,697 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,335 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,531 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,691 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,693 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,989 |
| Name a Valid Country #7 | 0 | - | 4.91 | 129,736 |
| Name a Valid Country #8 | 0 | - | 4.86 | 99,095 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 722,910 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,371 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,764 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,130 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,781 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,652 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,124 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,023 |
| Environmental Issues | 0 | - | 4.54 | 26,868 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,539 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,567 |
| People With Place Names | 0 | - | 4.01 | 39,707 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 46,007 |
| Shared First Names #2 | 0 | - | 4.53 | 45,609 |
| People with J Initials | 0 | - | 4.51 | 55,506 |
| History Analogies #1 | 0 | - | 4.53 | 90,038 |
| History Analogies #2 | 0 | - | 4.49 | 77,297 |
| History Analogies #3 | 0 | - | 4.61 | 80,737 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 196,326 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,122 |
| English Idioms #1 | 0 | - | 4.45 | 146,106 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,450 |
| Clothing Idioms | 0 | - | 4.41 | 34,250 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,227 |
| Are You a Nerd? | 0 | - | 4.35 | 44,971 |
| The Eleven Colors | 0 | - | 4.74 | 235,473 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,365 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,921 |
| U.S. Cities by Clue #3 | 0 | - | 4.14 | 28,359 |
| Cities that End in L by Clue | 0 | - | 4.24 | 21,046 |
| King in the Answers | 0 | - | 4.42 | 50,237 |
| Super in the Answers | 0 | - | 4.52 | 110,521 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,503 |
| Five Letter Geography #3 | 0 | - | 4.61 | 131,635 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,717 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,712 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,793 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,638 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 38,216 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,577 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,736 |
| Five Letter Geography #4 | 0 | - | 4.78 | 85,055 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,608 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 124,609 |
| Random Countries by Borders | 0 | - | 4.99 | 82,666 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 140,209 |
| Random History by Country | 0 | - | 4.53 | 34,897 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,456 |
| Geography Decoder | 0 | - | 4.53 | 75,714 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,715 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,636 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,355 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,501 |
| Fruits by Picture | 0 | - | 4.19 | 808,011 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,487 |
| Answers are Beverages | 0 | - | 4.06 | 61,439 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,539 |
| Types of Food | 0 | - | 4.25 | 90,108 |
| The Foods they Ate | 0 | - | 4.03 | 69,502 |
