Subject: 2-factor authentication update 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Push notification customization update 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: In-app currency update 10 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

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

Subject: Referral program update 9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Achievement system update 9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Group chat update 14 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

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

Subject: Voice messaging update 10 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Video calling update 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Audio calling update 14 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Contact list update 16 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

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

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

Subject: Data synchronization update 9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Server synchronization update 9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.