Doubt in solving some question

I have problem in this particular questions Inactive User Engagement: The team wants to encourage inactive users to start posting by sending them promotional emails. Your Task: Identify users who have never posted a single photo on Instagram. User Engagement: Investors want to know if users are still active and posting on Instagram or if they are making fewer posts. Your Task: Calculate the average number of posts per user on Instagram. Also, provide the total number of photos on Instagram divided by the total number of users. Bots & Fake Accounts: Investors want to know if the platform is crowded with fake and dummy accounts. Your Task: Identify users (potential bots) who have liked every single photo on the site, as this is not typically possible for a normal user. Please help me with this questions