| First Names of Scientists | 0 | - | 4.51 | 57,237 |
| Random Symbol to Element | 0 | - | 4.88 | 94,078 |
| International Scientific Units | 0 | - | 4.95 | 158,393 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 63,355 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,102,793 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,261,595 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,387 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,525 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,538 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,750 |
| Elements by Symbol | 0 | - | 4.92 | 198,765 |
| Speed Symbol by Element | 0 | - | 4.90 | 105,623 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,211 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,820 |
| Noble Gases | 0 | - | 4.89 | 78,863 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 65,108 |
| Periodic Table Symbols | 0 | - | 4.97 | 80,854 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 82,455 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 103,528 |
| Name a Valid Element | 0 | - | 4.68 | 70,424 |
| Name the Virus | 0 | - | 4.87 | 77,133 |
| Historical Middle Names | 0 | - | 4.16 | 36,280 |
| People with Food Names | 0 | - | 4.09 | 71,146 |
| First Names of Historical Figures #2 | 0 | - | 4.32 | 41,137 |
| First Names of Historical Figures #1 | 0 | - | 4.40 | 230,522 |
| Random Nicknames #1 | 0 | - | 4.11 | 34,967 |
| Also Known As #1 | 0 | - | 4.18 | 31,896 |
| Birth Names | 0 | - | 4.31 | 61,928 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,597 |
| Birthstones by Month | 0 | - | 4.44 | 88,166 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 81,162 |
| Famous Scientists | 0 | - | 4.58 | 42,860 |
| Last Names by Country of Origin | 0 | - | 4.64 | 157,324 |
| Citrus Fruits | 0 | - | 3.67 | 42,205 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,295 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,977 |
| Elemental Words | 0 | - | 4.97 | 52,570 |
| Metals of Antiquity | 0 | - | 4.95 | 93,957 |
| Historical Middle Names - U.S. | 0 | - | 3.84 | 61,333 |
| Musician Nicknames Quiz | 0 | - | 4.15 | 29,999 |
| Nicknames in U.S. History | 0 | - | 4.25 | 31,909 |
| Also Known As #2 | 0 | - | 4.04 | 31,418 |
| Also Known As #3 | 0 | - | 3.93 | 36,070 |
| Most Popular Boy Names in the U.S. 2024 | 0 | - | 4.06 | 178,181 |
| First Names of Explorers Quiz | 0 | - | 4.45 | 18,635 |
| First Name + Initial Quiz | 0 | - | 4.03 | 53,088 |
| Historical Figures Known by a Single Name #1 | 0 | - | 4.32 | 85,752 |
| Category Elimination - Elements | 0 | - | 4.61 | 54,138 |
| Astronomy Decoder | 0 | - | 4.48 | 38,238 |
| Books with Names in the Title #2 | 0 | - | 4.42 | 54,842 |
| Movies with Names in the Title #2 | 0 | - | 4.49 | 92,516 |
| Scientific Names | 0 | - | 4.32 | 78,740 |
| Songs with Names in the Title #1 | 0 | - | 4.08 | 47,471 |
| Songs with Names in the Title #2 | 0 | - | 4.16 | 32,648 |
| Popular Royal Names | 0 | - | 4.27 | 125,403 |
| What's in a Name? #1 | 0 | - | 4.27 | 41,150 |
| Actors by Last Name #1 | 0 | - | 4.28 | 68,856 |
| Actresses by Last Name #1 | 0 | - | 4.26 | 63,928 |
| Actors by Last Name #2 | 0 | - | 4.02 | 59,216 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,655,173 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,997 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,099 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,802 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,844 |
| Astronomy Quiz | 0 | - | 4.90 | 83,334 |
| Solar System Trivia | 0 | - | 4.93 | 47,207 |
| Body Part Cliches | 0 | - | 4.44 | 123,674 |
| Bones of the Human Body | 0 | - | 4.51 | 43,624 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,933 |
| People with Animal Names #1 | 0 | - | 3.97 | 42,615 |
| First Names as Last Names Quiz #1 | 0 | - | 3.97 | 58,509 |
| First Names as Last Names #2 | 0 | - | 4.09 | 30,455 |
| Most Popular J Names in the U.S. | 0 | - | 3.60 | 193,797 |
| Most Popular Girl Names in the U.S. 2024 | 0 | - | 3.77 | 181,697 |
| First Names of Painters | 0 | - | 4.43 | 60,067 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 66,014 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 71,128 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,126,022 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 168,367 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,579 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,770 |
| 7 Deadly Sins | 0 | - | 4.88 | 404,276 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,746 |
| Countries with Four Letters | 0 | - | 4.99 | 426,017 |
| Random Capital to Country | 0 | - | 4.99 | 2,602,351 |
| Random Country to Capital | 0 | - | 4.98 | 928,835 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,336 |
| Name a Valid World City | 0 | - | 4.85 | 72,032 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,163 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 216,493 |
| First Name Songs | 0 | - | 4.17 | 30,961 |
| Books with Names in the Title #1 | 0 | - | 4.27 | 70,612 |
| Random Nicknames #2 (US Centric) | 0 | - | 3.90 | 25,864 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,864 |
| MLB Baseball Last Names | 0 | - | 4.19 | 19,175 |
| Famous Child Stars by Last Name | 0 | - | 4.15 | 13,553 |
| First Names of Authors #1 | 0 | - | 4.20 | 59,329 |
| First Names of Authors #2 | 0 | - | 4.24 | 36,858 |
| Movies with Names in the Title #1 | 0 | - | 4.29 | 140,853 |
| Movies with Names in the Title #3 | 0 | - | 4.19 | 65,621 |
| Guitarists by Last Name | 0 | - | 4.25 | 35,626 |
| Actresses by Last Name #2 | 0 | - | 3.91 | 52,949 |
| Islands by Country #1 | 0 | - | 4.90 | 176,404 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,276 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,599 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,423 |
| Countries by Emojis | 0 | - | 4.99 | 242,588 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 202,132 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,492 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,623 |
| Country Chain | 0 | - | 4.96 | 218,519 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 219,191 |
| Capital Cities Chain | 0 | - | 4.84 | 83,424 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,614 |
| Name a Valid Country #3 | 0 | - | 4.99 | 266,141 |
| Name a Valid Country #1 | 0 | - | 4.99 | 295,553 |
| Name a Valid Country #2 | 0 | - | 4.98 | 254,317 |
| Name a Valid Country #4 | 0 | - | 4.97 | 259,315 |
| Name a Valid Country #5 | 0 | - | 4.99 | 210,166 |
| Name a Valid Country #6 | 0 | - | 4.95 | 145,370 |
| Name a Valid Country #7 | 0 | - | 4.91 | 131,948 |
| Name a Valid Country #8 | 0 | - | 4.86 | 101,082 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,513 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,451 |
| Science General Knowledge #1 | 0 | - | 4.54 | 167,410 |
| Science General Knowledge #2 | 0 | - | 4.48 | 119,708 |
| Science General Knowledge #3 | 0 | - | 4.56 | 109,628 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,979 |
| Word Chain - Science | 0 | - | 4.59 | 55,170 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,967 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,767 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,509 |
| Environmental Issues | 0 | - | 4.54 | 26,914 |
| Movie Characters by Last Name #1 | 0 | - | 4.22 | 41,681 |
| The Eleven Colors | 0 | - | 4.74 | 236,061 |
| Fruits by Picture | 0 | - | 4.19 | 809,544 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,950 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 743,617 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 36,234 |
| People with Animal Names Quiz #2 | 0 | - | 3.77 | 27,035 |
| U.S. Baby Boy Names by Letter | 0 | - | 3.86 | 97,554 |
| U.S. Baby Girls Names by Letter | 0 | - | 3.71 | 88,295 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,487 |
| WWII First Names | 0 | - | 4.45 | 41,982 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 324,299 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,574 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 343,447 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,590 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,799 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,755 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 81,444 |
| The Only Country ... | 0 | - | 4.91 | 81,929 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,694 |
| Random Countries by Borders | 0 | - | 4.99 | 83,123 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 141,615 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,728 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 111,130 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,962 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,184 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 238,301 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 227,203 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,824 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,021 |
| Name a Valid Island Country | 0 | - | 4.97 | 130,233 |
| Groups of Two - Science | 0 | - | 4.26 | 48,470 |
| Science Vocabulary #1 | 0 | - | 4.34 | 72,205 |
| Science Vocabulary #3 | 0 | - | 4.31 | 52,244 |
| Science Decoder | 0 | - | 4.52 | 28,862 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,520 |
| Elements by Picture | 0 | - | 4.27 | 70,336 |
| Medical Acronyms | 0 | - | 4.43 | 97,279 |
| Medical Vocabulary | 0 | - | 4.54 | 59,500 |
| American TV Characters by Last Name #1 | 0 | - | 4.35 | 11,045 |
| American TV Characters by Last Name #2 | 0 | - | 4.19 | 8,847 |
| Movie Characters by Last Name #2 | 0 | - | 4.19 | 24,315 |
| What's in a Name? #2 | 0 | - | 3.85 | 9,227 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 99,479 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,769 |
| Top 100 Movie Quotes | 0 | - | 4.44 | 68,676 |
| Quotes from Historical Figures #1 | 0 | - | 4.50 | 87,733 |
| Santa's Reindeer | 0 | - | 4.47 | 194,487 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 982,764 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 276,763 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 338,061 |
| Musical Acts by Country #1 | 0 | - | 4.45 | 79,996 |
| Places with Colors in the Name | 0 | - | 4.27 | 72,464 |
| What Color is It - Multiple Choice | 0 | - | 4.47 | 44,353 |
| Cocktail Shopping List | 0 | - | 4.44 | 44,693 |
| Largest World Cities With Five Letters | 0 | - | 4.53 | 67,438 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,360 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 109,325 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 97,708 |
| Random World Capitals on a Map | 0 | - | 4.93 | 135,882 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 140,108 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 388,174 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,006 |
| Christmas Decoder | 0 | - | 4.42 | 49,662 |
| Cities Chain #2 | 0 | - | 4.42 | 56,530 |
| Cities Chain #1 | 0 | - | 4.61 | 66,833 |
| Word Chain - Africa | 0 | - | 4.47 | 31,721 |
