How many tasks can I assign per coding interview?

That depends on the total interview duration included in your plan.

Each task can be set to 5, 10, or 15 minutes, and you can add multiple tasks as long as they do not exceed your total interview time.

For Example:

If you’re on a plan with 30 minutes per interview, you can set 6 tasks of 5 minutes each, or 3 tasks of 10 minutes each, and so on.