The well runs deep
Trivia questions and answers, drawn fresh from the well
239,118 public questions across 1,818 topics. Challenge yourself, or build the perfect quiz for game night.
239,118
Questions with answers
1,818
Topics to explore
3
Depths of difficulty
Today at the well
1 / 5 0
What moisture-measuring instrument did Leonardo da Vinci design using a balance and absorbent material?
Answer
Hygrometer
What mechanical humanoid did Leonardo da Vinci design for a Milan court spectacle?
Answer
Robot knight
What early mechanical device did Leonardo da Vinci draw using three balls to reduce friction between moving surfaces?
Answer
Ball bearing
What ship-safety system did Leonardo da Vinci propose by giving a vessel two separate hulls?
Answer
Double hull
What canal device did Leonardo da Vinci improve to raise boats between different water levels?
Answer
Miter lock
0 / 5
Round complete
239,118 trivia questions
Every question has an answer
1,818 public topics
Something for every quiz
Free to explore
Reveal answers at your own pace
Fresh from the well
Latest trivia questions
What stringed keyboard instrument did Leonardo da Vinci invent with a bowing wheel?
Answer
Viola organista
What self-propelled machine did Leonardo da Vinci design centuries before the automobile?
Answer
Self-propelled cart
What water-breathing equipment did Leonardo da Vinci design for divers?
Answer
Diving suit
Which two songwriters are credited with writing Taylor Swift’s “august”?
Answer
Taylor Swift and Jack Antonoff