| Länder, die mit … beginnen | 20 | 20 | 4.75 | 2,007,733 |
| Quizzes mit Karten | 39 | 36 | 4.76 | 1,587,908 |
| Deutschland | 36 | 31 | 4.64 | 1,218,461 |
| Fußball-Quizzes | 22 | 16 | 4.44 | 1,038,484 |
| Länder | 48 | 47 | 4.63 | 991,099 |
| Quizz français de Gassu | 15 | 13 | 4.66 | 837,073 |
| Gassu's SVG Quizzes | 43 | 9 | 4.64 | 638,135 |
| Geschichts-Quizzes | 50 | 48 | 4.47 | 601,609 |
| Flaggen-Quizzes | 11 | 11 | 4.75 | 529,583 |
| Antworten sind europäische Länder | 17 | 17 | 4.77 | 486,049 |
| The Only ... | 5 | 3 | 4.63 | 345,906 |
| Politik-Quizzes | 14 | 13 | 4.59 | 319,583 |
| die deutsche Sprache | 15 | 11 | 4.34 | 310,025 |
| 5 pro Kontinent Quizzes | 6 | 6 | 4.76 | 271,399 |
| Geographie nach Buchstabe | 25 | 25 | 4.30 | 267,912 |
| Bilder nach Buchstabe | 25 | 25 | 3.78 | 267,235 |
| Sport-Quizzes | 11 | 10 | 4.39 | 259,710 |
| Allerlei | Sonstiges | 13 | 13 | 4.46 | 249,439 |
| Pruebas de Gassu en español | 7 | 7 | 4.46 | 237,372 |
| Die größten Städte | 15 | 13 | 4.44 | 212,002 |
| Sprachen | 13 | 13 | 4.53 | 210,711 |
| Gewässer und Inseln | 15 | 15 | 4.54 | 197,787 |
| United States Politics | 18 | 1 | 4.35 | 191,061 |
| Which City in ... | 3 | 3 | 4.50 | 188,958 |
| Bild-Quizzes | 23 | 20 | 4.25 | 179,501 |
| Antworten sind Städte | 16 | 14 | 4.31 | 169,780 |
| Countries by Picture | 13 | 6 | 4.36 | 165,178 |
| Geschichte nach Buchstabe | 25 | 25 | 4.43 | 162,785 |
| Name a Valid Answer | 3 | 3 | 4.60 | 160,621 |
| Religion | Mythologie | 12 | 12 | 4.37 | 158,122 |
| Länder / Städte mit Hinweisen | 14 | 13 | 4.66 | 136,600 |
| Allgemeinwissen der Geschichte | 12 | 12 | 4.29 | 130,991 |
| Länder Trivia | 14 | 14 | 4.45 | 122,044 |
| Meistbesuchte Länder von ... | 8 | 7 | 4.69 | 118,863 |
| Regionen, Provinzen etc. | 11 | 10 | 4.62 | 114,380 |
| Mathematik-Quizzes | 2 | 2 | 4.42 | 110,607 |
| Von Nord bis Süd | 4 | 4 | 4.69 | 102,190 |
| Österreich | 6 | 6 | 4.74 | 99,648 |
| Tourismus-Quizzes | 4 | 4 | 4.66 | 90,085 |
| Wikipedia Quizzes | 5 | 2 | 4.32 | 81,116 |
| Zusammengefügt! | 6 | 6 | 4.60 | 79,138 |
| Achtung Abflug! | 3 | 3 | 4.75 | 78,745 |
| United States Cities | 34 | 2 | 4.71 | 77,724 |
| 100 Longest Rivers by Continent | 7 | 1 | 4.93 | 74,195 |
| Tier-Quizzes | 7 | 7 | 4.23 | 73,911 |
| City Quizzes | 53 | 2 | 4.60 | 72,678 |
| Hauptstädte - Karten-Quiz | 6 | 6 | 4.72 | 69,289 |
| Geographie A-Z | 7 | 7 | 4.33 | 69,124 |
| Schweiz | Suisse | Svizzera | Svizra | 9 | 7 | 4.58 | 67,072 |
| Wahrzeichen von Ländern | 4 | 4 | 4.83 | 64,073 |
| A-Z Quizzes | 15 | 1 | 4.57 | 63,572 |
| Polska | 2 | 1 | 4.88 | 61,528 |
| United States Geography | 23 | 2 | 4.62 | 53,136 |
| Personen nach Land | 5 | 5 | 4.56 | 50,814 |
| Antworten sind asiatische Länder | 4 | 4 | 4.61 | 47,360 |
| Gassu's Flag Quizzes | 3 | 1 | 4.63 | 42,439 |
| Gruppen von Dingen | 4 | 2 | 4.50 | 40,675 |
| Elemente (Chemie) | 2 | 2 | 4.64 | 39,299 |
| Gassu's Sports Quizzes | 30 | 1 | 4.41 | 38,187 |
| World's 50 Largest Cities | 26 | 0 | 4.20 | 34,360 |
| Gemeinden der Schweiz | 27 | 1 | 4.84 | 34,211 |
| Newsmeldungen - Nenne das Land | 4 | 4 | 4.55 | 26,759 |
| Monarchie | Royals | 3 | 2 | 4.61 | 24,267 |
| italiano | 2 | 1 | 4.79 | 20,412 |
| Geographie nach Anzahl Buchstaben | 2 | 2 | 4.43 | 18,616 |
| Communes de Suisse | 10 | 1 | 4.90 | 18,497 |
| California | 5 | 1 | 4.38 | 16,664 |
| It's All About Countries | 38 | 0 | 4.78 | 16,114 |
| Five Cities by Continent by Letter | 26 | 0 | 3.50 | 13,819 |
| Städte-Trivia | 8 | 5 | 4.50 | 13,257 |
| Misc | 26 | 0 | 4.49 | 9,160 |
| Religion | 5 | 0 | 3.13 | 8,302 |
| Ereignisse nach Monat | 5 | 4 | 4.02 | 8,038 |
| Switzerland | 19 | 0 | 4.81 | 7,899 |
| Language Quizzes | 12 | 0 | 4.89 | 7,470 |
| Historical Quizzes | 19 | 0 | 4.54 | 7,310 |
| Biggest Cities in the E.U. by Letter | 26 | 0 | – | 6,410 |
| Gassu‘s Geographic Groups | 4 | 0 | 4.00 | 6,228 |
| Groups of Things | 6 | 0 | 3.98 | 6,222 |
| World Politics | 13 | 0 | 4.27 | 5,953 |
| Auckland Quizzes | 7 | 0 | 4.81 | 4,347 |
| Transportation | 12 | 0 | – | 4,095 |
| All 500k+ Urban Areas | 2 | 0 | 4.64 | 3,819 |
| Italy | 5 | 0 | 4.83 | 3,345 |
| Largest European Cities by Letter | 23 | 0 | – | 3,341 |
| the Britons and their Commonwealth | 5 | 0 | 5.00 | 3,294 |
| 100 Questions about … | 6 | 0 | 4.40 | 3,115 |
| Germany | 10 | 0 | 4.57 | 2,961 |
| All 100k+ Urban Areas | 2 | 0 | 4.92 | 2,955 |
| Five Biggest Cities by Region | 6 | 0 | – | 2,817 |
| Decoder Quizzes | 7 | 0 | 4.20 | 2,691 |
| Gassu Quizzes | 7 | 0 | 4.44 | 2,606 |
| US State General Knowledge | 11 | 0 | – | 2,225 |
| New Zealand Quizzes | 15 | 0 | 5.00 | 2,209 |
| Answers are U.S. States | 10 | 0 | 3.33 | 2,075 |
| Oceania Quizzes | 5 | 0 | 4.82 | 2,056 |
| Islands! | 17 | 0 | 4.17 | 2,021 |
| Spain | España | 7 | 0 | 5.00 | 1,883 |
| Physical Geography by Picture | 6 | 0 | – | 1,814 |
| Notable People by City | 6 | 0 | 5.00 | 1,787 |
| France | 6 | 0 | – | 1,743 |
| Countries by a Single Word | 6 | 0 | – | 1,711 |
| Bundesliga | 3 | 0 | – | 1,618 |
| Europe's Largest [...]-Letter Cities | 7 | 0 | – | 1,497 |
| Biggest Cities in NATO by Letter | 9 | 0 | – | 1,402 |
| Gassu's Tile Quizzes | 3 | 0 | 4.80 | 1,341 |
| Stoopid Quizzes | 2 | 0 | 5.00 | 1,245 |
| Gassu's City Trivia | 2 | 0 | – | 1,135 |
| The 30 Greatest … | 8 | 0 | – | 1,109 |
| Ortschaften der Schweiz | 26 | 0 | – | 1,011 |
| Interesting Facts | 3 | 0 | – | 920 |
| Animals | 2 | 0 | 4.42 | 821 |
| JetPunk Quizzes | 7 | 0 | – | 758 |
| Country Details | 4 | 0 | – | 588 |
| Rivers | 3 | 0 | 4.83 | 585 |
| Cities as a Percent of the Continent | 5 | 0 | – | 538 |
| Biggest Cities in the Americas by Letter | 4 | 0 | – | 538 |
| the Nordics! | 2 | 0 | – | 509 |
| Biggest European Cities by Letter | 6 | 0 | – | 450 |
| Top 50 Largest European Cities | 1 | 0 | – | 431 |
| Most Guessed Things | 3 | 0 | – | 418 |
| 21st Century in ... | 4 | 0 | – | 411 |
| Analogies | 2 | 0 | – | 405 |
| Localités de la Suisse romande | 7 | 0 | – | 350 |
| Gassu's Discord Quizzes | 4 | 0 | – | 349 |
| Biggest New Zealand Cities by Region | 16 | 0 | – | 327 |
| The Tesla Series | 2 | 0 | – | 260 |
| The Pacific Ocean by Letter | 3 | 0 | – | 244 |
| Random Tourist Attractions | 2 | 0 | – | 182 |
| Rumantsch | 4 | 0 | – | 80 |
