| First Names of Scientists | 0 | - | 4.50 | 56,652 |
| Random Symbol to Element | 0 | - | 4.88 | 92,535 |
| International Scientific Units | 0 | - | 4.95 | 156,044 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,481 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,093,938 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,231,179 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,358 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,683 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,220 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,921 |
| Elements by Symbol | 0 | - | 4.92 | 196,334 |
| Speed Symbol by Element | 0 | - | 4.91 | 104,160 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,908 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,734 |
| Noble Gases | 0 | - | 4.89 | 77,795 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,309 |
| Periodic Table Symbols | 0 | - | 4.97 | 71,567 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,240 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 102,524 |
| Name a Valid Element | 0 | - | 4.64 | 69,786 |
| Name the Virus | 0 | - | 4.86 | 76,541 |
| Historical Middle Names | 0 | - | 4.16 | 35,607 |
| People with Food Names | 0 | - | 4.10 | 60,784 |
| First Names of Historical Figures #2 | 0 | - | 4.32 | 40,411 |
| First Names of Historical Figures #1 | 0 | - | 4.39 | 228,992 |
| Random Nicknames #1 | 0 | - | 4.11 | 34,793 |
| Birth Names | 0 | - | 4.30 | 61,688 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,777 |
| Birthstones by Month | 0 | - | 4.41 | 80,564 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,181 |
| Famous Scientists | 0 | - | 4.57 | 42,540 |
| Last Names by Country of Origin | 0 | - | 4.63 | 156,184 |
| Citrus Fruits | 0 | - | 3.63 | 41,999 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,770 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,759 |
| Elemental Words | 0 | - | 4.96 | 52,137 |
| Metals of Antiquity | 0 | - | 4.94 | 93,149 |
| Historical Middle Names - U.S. | 0 | - | 3.83 | 60,952 |
| Musician Nicknames Quiz | 0 | - | 4.15 | 29,799 |
| Nicknames in U.S. History | 0 | - | 4.25 | 31,665 |
| Also Known As #1 | 0 | - | 4.18 | 31,408 |
| Also Known As #2 | 0 | - | 4.02 | 30,888 |
| Also Known As #3 | 0 | - | 3.92 | 35,721 |
| Most Popular Boy Names in the U.S. 2024 | 0 | - | 4.06 | 176,627 |
| First Names of Explorers Quiz | 0 | - | 4.43 | 18,331 |
| First Name + Initial Quiz | 0 | - | 4.03 | 52,805 |
| Historical Figures Known by a Single Name #1 | 0 | - | 4.31 | 84,834 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,444 |
| Astronomy Decoder | 0 | - | 4.50 | 37,937 |
| Books with Names in the Title #2 | 0 | - | 4.42 | 54,552 |
| Movies with Names in the Title #2 | 0 | - | 4.49 | 91,097 |
| Scientific Names | 0 | - | 4.32 | 78,292 |
| Songs with Names in the Title #1 | 0 | - | 4.08 | 47,297 |
| Songs with Names in the Title #2 | 0 | - | 4.16 | 32,510 |
| Popular Royal Names | 0 | - | 4.27 | 124,729 |
| What's in a Name? #1 | 0 | - | 4.27 | 40,965 |
| Actors by Last Name #1 | 0 | - | 4.28 | 68,387 |
| Actresses by Last Name #1 | 0 | - | 4.25 | 63,574 |
| Actors by Last Name #2 | 0 | - | 4.01 | 58,869 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,604,834 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,273 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,955 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 187,956 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,354 |
| Astronomy Quiz | 0 | - | 4.90 | 82,139 |
| Body Part Cliches | 0 | - | 4.43 | 123,192 |
| Bones of the Human Body | 0 | - | 4.52 | 41,615 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,851 |
| People with Animal Names #1 | 0 | - | 3.97 | 42,509 |
| First Names as Last Names Quiz #1 | 0 | - | 3.97 | 58,364 |
| First Names as Last Names #2 | 0 | - | 4.09 | 30,332 |
| Most Popular J Names | 0 | - | 3.55 | 189,065 |
| Most Popular Girl Names in the U.S. 2024 | 0 | - | 3.77 | 180,684 |
| First Names of Painters | 0 | - | 4.43 | 59,736 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,094,569 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,414 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,198 |
| Anagram Chain - Countries | 0 | - | 4.98 | 115,843 |
| 7 Deadly Sins | 0 | - | 4.88 | 397,766 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,145 |
| Countries with Four Letters | 0 | - | 4.99 | 420,395 |
| Random Capital to Country | 0 | - | 4.99 | 2,584,492 |
| Random Country to Capital | 0 | - | 4.98 | 915,189 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,754 |
| Countries but all Vowels are Changed to O | 0 | - | 4.93 | 68,687 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,870 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,094 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,306 |
| First Name Songs | 0 | - | 4.17 | 30,845 |
| Books with Names in the Title #1 | 0 | - | 4.26 | 70,367 |
| Random Nicknames #2 (US Centric) | 0 | - | 3.90 | 25,786 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,674 |
| MLB Baseball Last Names | 0 | - | 4.19 | 19,001 |
| Famous Child Stars by Last Name | 0 | - | 4.15 | 13,466 |
| First Names of Authors #1 | 0 | - | 4.20 | 59,094 |
| First Names of Authors #2 | 0 | - | 4.24 | 36,688 |
| Movies with Names in the Title #1 | 0 | - | 4.28 | 138,668 |
| Movies with Names in the Title #3 | 0 | - | 4.19 | 64,578 |
| Guitarists by Last Name | 0 | - | 4.25 | 35,398 |
| Actresses by Last Name #2 | 0 | - | 3.90 | 52,697 |
| Islands by Country #1 | 0 | - | 4.87 | 174,835 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,188 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,543 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,510 |
| Countries by Emojis | 0 | - | 4.99 | 237,843 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,025 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 170,341 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,459 |
| Country Chain | 0 | - | 4.96 | 216,439 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,068 |
| Capital Cities Chain | 0 | - | 4.84 | 82,268 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,405 |
| Name a Valid Country #3 | 0 | - | 4.99 | 261,749 |
| Name a Valid Country #1 | 0 | - | 4.99 | 287,113 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,112 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,098 |
| Name a Valid Country #5 | 0 | - | 4.99 | 204,937 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,336 |
| Name a Valid Country #7 | 0 | - | 4.91 | 128,277 |
| Name a Valid Country #8 | 0 | - | 4.85 | 97,645 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,317 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,215 |
| Science General Knowledge #1 | 0 | - | 4.54 | 164,164 |
| Science General Knowledge #2 | 0 | - | 4.48 | 117,246 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,732 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,425 |
| Word Chain - Science | 0 | - | 4.59 | 54,628 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,561 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,428 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,170 |
| Environmental Issues | 0 | - | 4.54 | 26,775 |
| Movie Characters by Last Name #1 | 0 | - | 4.22 | 41,414 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 716,252 |
| The Eleven Colors | 0 | - | 4.73 | 234,596 |
| Fruits by Picture | 0 | - | 4.20 | 805,944 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,738 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,793 |
| People with Animal Names Quiz #2 | 0 | - | 3.77 | 26,964 |
| U.S. Baby Boy Names by Letter | 0 | - | 3.86 | 96,717 |
| U.S. Baby Girls Names by Letter | 0 | - | 3.71 | 75,349 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,340 |
| WWII First Names | 0 | - | 4.44 | 41,681 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 320,784 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,840 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 335,652 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,209 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,926 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,718 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 78,297 |
| The Only Country ... | 0 | - | 4.91 | 80,469 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,736 |
| Random Countries by Borders | 0 | - | 4.99 | 81,987 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,287 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,150 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,521 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,128 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,111 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,743 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,852 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,233 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,357 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,501 |
| Groups of Two - Science | 0 | - | 4.26 | 48,212 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,578 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,785 |
| Science Decoder | 0 | - | 4.52 | 28,689 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,232 |
| Elements by Picture | 0 | - | 4.27 | 69,743 |
| Medical Acronyms | 0 | - | 4.43 | 96,559 |
| Medical Vocabulary | 0 | - | 4.54 | 58,890 |
| American TV Characters by Last Name #1 | 0 | - | 4.35 | 10,965 |
| American TV Characters by Last Name #2 | 0 | - | 4.19 | 8,779 |
| Movie Characters by Last Name #2 | 0 | - | 4.19 | 24,185 |
| What's in a Name? #2 | 0 | - | 3.85 | 9,152 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 99,098 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,495 |
| Top 100 Movie Quotes | 0 | - | 4.44 | 67,569 |
| Quotes from Historical Figures #1 | 0 | - | 4.50 | 87,319 |
| Santa's Reindeer | 0 | - | 4.47 | 192,514 |
| Countries of the World - One Minute Sprint | 0 | - | 4.35 | 971,252 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 274,228 |
| Musical Acts by Country #1 | 0 | - | 4.45 | 78,957 |
| Places with Colors in the Name | 0 | - | 4.27 | 72,245 |
| What Color is It - Multiple Choice | 0 | - | 4.47 | 43,914 |
| Cocktail Shopping List | 0 | - | 4.44 | 44,463 |
| Largest World Cities With Five Letters | 0 | - | 4.53 | 66,671 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,308 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,506 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 94,238 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,820 |
| Empty World Map without 20 Random Countries | 0 | - | 4.93 | 136,428 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 380,648 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,765 |
| Christmas Decoder | 0 | - | 4.42 | 49,423 |
| Cities Chain #2 | 0 | - | 4.42 | 56,252 |
| Cities Chain #1 | 0 | - | 4.61 | 66,485 |
| Word Chain - Christmas | 0 | - | 4.51 | 50,511 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,049 |
| Name Any Valid U.S. City | 0 | - | 4.49 | 40,395 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,964 |
