| Länder, die mit … beginnen | 20 | 20 | 4.75 | 2,493,282 |
| Quizzes mit Karten | 39 | 36 | 4.76 | 1,954,912 |
| Deutschland | 36 | 31 | 4.64 | 1,505,832 |
| Fußball-Quizzes | 22 | 17 | 4.42 | 1,376,927 |
| Länder | 48 | 47 | 4.61 | 1,213,609 |
| Quizz français de Gassu | 15 | 13 | 4.69 | 1,020,897 |
| Gassu's SVG Quizzes | 43 | 9 | 4.66 | 737,807 |
| Geschichts-Quizzes | 50 | 48 | 4.47 | 732,863 |
| Flaggen-Quizzes | 11 | 11 | 4.77 | 690,682 |
| Antworten sind europäische Länder | 17 | 17 | 4.77 | 589,129 |
| The Only ... | 5 | 3 | 4.65 | 397,323 |
| Politik-Quizzes | 14 | 13 | 4.60 | 388,014 |
| Bilder nach Buchstabe | 25 | 25 | 3.80 | 386,251 |
| Geographie nach Buchstabe | 25 | 25 | 4.33 | 369,682 |
| die deutsche Sprache | 15 | 11 | 4.32 | 368,463 |
| 5 pro Kontinent Quizzes | 6 | 6 | 4.78 | 323,452 |
| Sport-Quizzes | 11 | 10 | 4.40 | 317,985 |
| Pruebas de Gassu en español | 7 | 7 | 4.50 | 313,997 |
| Allerlei | Sonstiges | 13 | 13 | 4.47 | 300,454 |
| Die größten Städte | 15 | 13 | 4.47 | 265,362 |
| Sprachen | 13 | 13 | 4.54 | 252,558 |
| Gewässer und Inseln | 15 | 15 | 4.57 | 236,869 |
| Geschichte nach Buchstabe | 25 | 25 | 4.32 | 226,269 |
| Bild-Quizzes | 23 | 20 | 4.29 | 221,500 |
| Antworten sind Städte | 16 | 14 | 4.28 | 214,063 |
| Which City in ... | 3 | 3 | 4.51 | 211,256 |
| United States Politics | 8 | 1 | 4.62 | 195,512 |
| Religion | Mythologie | 12 | 12 | 4.38 | 183,798 |
| Countries by Picture | 13 | 6 | 4.37 | 180,627 |
| Länder / Städte mit Hinweisen | 14 | 13 | 4.64 | 175,056 |
| Name a Valid Answer | 2 | 2 | 4.73 | 154,346 |
| Länder-Trivia | 14 | 14 | 4.46 | 146,633 |
| Allgemeinwissen der Geschichte | 12 | 12 | 4.35 | 144,899 |
| Meistbesuchte Länder von ... | 8 | 7 | 4.67 | 137,799 |
| Mathematik-Quizzes | 2 | 2 | 4.46 | 135,699 |
| Regionen, Provinzen etc. | 11 | 10 | 4.63 | 129,111 |
| Von Nord bis Süd | 4 | 4 | 4.70 | 121,159 |
| Österreich | 6 | 6 | 4.68 | 115,440 |
| Tourismus-Quizzes | 4 | 4 | 4.67 | 108,210 |
| Achtung Abflug! | 3 | 3 | 4.75 | 93,463 |
| Tier-Quizzes | 7 | 7 | 4.26 | 92,759 |
| Zusammengefügt! | 6 | 6 | 4.63 | 92,074 |
| United States Cities | 34 | 2 | 4.69 | 90,711 |
| 100 Longest Rivers by Continent | 7 | 1 | 4.94 | 88,711 |
| Wikipedia Quizzes | 5 | 2 | 4.31 | 87,505 |
| Hauptstädte - Karten-Quiz | 6 | 6 | 4.72 | 85,372 |
| City Quizzes | 53 | 2 | 4.53 | 83,513 |
| Wahrzeichen von Ländern | 4 | 4 | 4.80 | 79,827 |
| Schweiz | Suisse | Svizzera | Svizra | 9 | 7 | 4.55 | 77,346 |
| Geographie A-Z | 7 | 7 | 4.36 | 75,975 |
| A-Z Quizzes | 15 | 1 | 4.55 | 69,679 |
| Polska | 2 | 1 | 4.87 | 66,971 |
| United States Geography | 23 | 2 | 4.58 | 59,565 |
| Antworten sind asiatische Länder | 4 | 4 | 4.62 | 57,061 |
| Gemeinden der Schweiz | 27 | 1 | 4.83 | 56,158 |
| Personen nach Land | 5 | 5 | 4.59 | 55,816 |
| Gruppen von Dingen | 4 | 2 | 4.54 | 50,678 |
| Elemente (Chemie) | 2 | 2 | 4.60 | 48,772 |
| World's 50 Largest Cities | 26 | 0 | 4.24 | 48,337 |
| Gassu's Flag Quizzes | 3 | 1 | 4.63 | 45,341 |
| Gassu's Sports Quizzes | 30 | 1 | 4.37 | 41,569 |
| Newsmeldungen - Nenne das Land | 4 | 4 | 4.60 | 36,069 |
| Monarchie | Royals | 3 | 2 | 4.65 | 29,439 |
| Communes de Suisse | 10 | 2 | 4.95 | 28,058 |
| italiano | 2 | 1 | 4.82 | 25,832 |
| Geographie nach Anzahl Buchstaben | 2 | 2 | 4.42 | 22,786 |
| It's All About Countries | 38 | 0 | 4.67 | 17,573 |
| California | 5 | 1 | 4.68 | 17,421 |
| Städte-Trivia | 8 | 5 | 4.54 | 16,232 |
| Five Cities by Continent by Letter | 26 | 0 | 3.50 | 14,623 |
| Ereignisse nach Monat | 5 | 4 | 4.00 | 12,646 |
| Misc | 26 | 0 | 4.44 | 10,177 |
| Religion | 5 | 0 | 3.31 | 9,292 |
| Switzerland | 19 | 0 | 4.70 | 8,571 |
| Historical Quizzes | 19 | 0 | 4.57 | 8,010 |
| Language Quizzes | 12 | 0 | 4.90 | 7,963 |
| Biggest Cities in the E.U. by Letter | 26 | 0 | – | 6,741 |
| Groups of Things | 6 | 0 | 3.96 | 6,719 |
| Gassu‘s Geographic Groups | 4 | 0 | 4.17 | 6,660 |
| World Politics | 13 | 0 | 4.31 | 6,282 |
| Auckland Quizzes | 7 | 0 | 4.82 | 5,095 |
| Transportation | 12 | 0 | 4.86 | 4,907 |
| All 500k+ Urban Areas | 2 | 0 | 4.68 | 4,420 |
| Italy | 5 | 0 | 4.83 | 3,811 |
| Largest European Cities by Letter | 23 | 0 | – | 3,639 |
| the Britons and their Commonwealth | 5 | 0 | 5.00 | 3,471 |
| 100 Questions about … | 6 | 0 | 4.40 | 3,444 |
| Germany | 10 | 0 | 4.63 | 3,260 |
| All 100k+ Urban Areas | 2 | 0 | 4.93 | 3,138 |
| Five Biggest Cities by Region | 6 | 0 | – | 2,956 |
| Decoder Quizzes | 7 | 0 | 4.20 | 2,902 |
| Gassu Quizzes | 7 | 0 | 4.20 | 2,856 |
| New Zealand Quizzes | 15 | 0 | 4.83 | 2,615 |
| Ortschaften der Schweiz | 26 | 0 | – | 2,392 |
| US State General Knowledge | 11 | 0 | – | 2,370 |
| Oceania Quizzes | 5 | 0 | 4.82 | 2,246 |
| Physical Geography by Picture | 6 | 0 | – | 2,150 |
| Answers are U.S. States | 10 | 0 | 3.57 | 2,145 |
| Islands! | 17 | 0 | 4.17 | 2,089 |
| Spain | España | 7 | 0 | 5.00 | 2,066 |
| Notable People by City | 6 | 0 | 5.00 | 1,920 |
| Bundesliga | 3 | 0 | – | 1,849 |
| Countries by a Single Word | 6 | 0 | – | 1,794 |
| Europe's Largest [...]-Letter Cities | 7 | 0 | – | 1,672 |
| Biggest Cities in NATO by Letter | 9 | 0 | – | 1,525 |
| Gassu's Tile Quizzes | 3 | 0 | 4.83 | 1,457 |
| Stoopid Quizzes | 2 | 0 | 5.00 | 1,359 |
| Gassu's City Trivia | 2 | 0 | – | 1,265 |
| France | 2 | 0 | – | 1,237 |
| The 30 Greatest … | 8 | 0 | – | 1,162 |
| Rivers | 3 | 0 | 4.84 | 1,141 |
| Interesting Facts | 3 | 0 | – | 995 |
| Localités de la Suisse romande | 7 | 0 | – | 923 |
| Animals | 2 | 0 | 4.42 | 888 |
| JetPunk Quizzes | 7 | 0 | – | 784 |
| Biggest Cities in the Americas by Letter | 4 | 0 | – | 656 |
| Country Details | 4 | 0 | – | 617 |
| Cities as a Percent of the Continent | 5 | 0 | – | 557 |
| the Nordics! | 2 | 0 | – | 554 |
| Biggest European Cities by Letter | 6 | 0 | – | 513 |
| Most Guessed Things | 3 | 0 | – | 446 |
| 21st Century in ... | 4 | 0 | – | 433 |
| Analogies | 2 | 0 | – | 427 |
| Biggest New Zealand Cities by Region | 16 | 0 | – | 380 |
| Gassu's Discord Quizzes | 4 | 0 | – | 361 |
| The Pacific Ocean by Letter | 3 | 0 | – | 253 |
| Random Tourist Attractions | 2 | 0 | – | 195 |
| Rumantsch | 4 | 0 | – | 95 |
