Subject: Crowdsourced data timeliness 14 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Crowd inspectors 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Crowdsourced data ownership 24 general knowledge quiz questions. It should take around 5 minutes to complete all the questions.

Subject: Crowdsourced data 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Crowdsourced content curation 14 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Crowdsourced opinion mining 14 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Crowd evaluators 9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Crowdsourced data deduplication 12 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: 4WD (Four-Wheel Drive) 13 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: FWD (Front-Wheel Drive) 18 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: RWD (Rear-Wheel Drive) 16 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Hair bleaching powder 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Powder bleach for dark hair 18 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Bleaching powder for body hair 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Powder bleach for facial hair 9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Powder bleach for back hair 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.