About Inventions and Inventors Quiz #842
Inventions and Inventors Quiz #842 was the quiz for Thursday, October 22, 2026: 10 questions: 2 easy, 4 medium and 4 hard. Everyone who played Inventions and Inventors Quiz that day got the same quiz, and it stays here to play for 60 days.
The questions of Inventions and Inventors Quiz #842
- Which Canadian invention, developed at the University of Toronto, treats diabetes?
- Which of these is credited to James Watt?
- Which aircraft made the first controlled, powered aeroplane flight in 1903?
- Which invention lets you see over walls or out of a submarine?
- Which toy uses mirrors to make changing coloured patterns?
- What were traditional Inuit slit goggles mainly designed to prevent?
- Who is credited with making the first handheld mobile phone call?
- Who is credited with making the first reliable mercury thermometer?
- Who is credited with inventing five-pin bowling?
- Which Canadian scientist invented the electric wheelchair for injured veterans after the Second World War?
The answer options and the answers appear only when you play the quiz, one question at a time.
New to Inventions and Inventors Quiz? The rules, tips and common questions are on the Inventions and Inventors Quiz page.
Other days of Inventions and Inventors Quiz
- Inventions and Inventors Quiz #845, Oct 25
- Inventions and Inventors Quiz #844, Oct 24
- Inventions and Inventors Quiz #843, Oct 23
- Inventions and Inventors Quiz #841, Oct 21
- Inventions and Inventors Quiz #840, Oct 20
- Inventions and Inventors Quiz #839, Oct 19
- Today’s quiz, #851
Every day of the last 60 is in the puzzle archive.