Subject: Background sounds 19 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: No sound 36 general knowledge quiz questions. It should take around 8 minutes to complete all the questions.

Subject: Energy-efficient desktop computers 9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Adjustable water level washing machines 38 general knowledge quiz questions. It should take around 8 minutes to complete all the questions.

Subject: Property amenities 17 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Sports memoirs 15 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Gate opener brand 19 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Gate opener features 17 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Rail material 38 general knowledge quiz questions. It should take around 8 minutes to complete all the questions.

Subject: Electric razor for barber use 19 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Phone ringing 15 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Elevator noise 19 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Squeaky doors 14 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Keyboard clicking 14 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Low-noise bearings 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Adjust the volume 16 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.