What is different between will you and do you?

Answer 1

The phrases "have you", "do you", and "will you" refer to actions of the past, present, and future.

"Have you ever eaten a hamburger?" asks if you've ever eaten a hamburger in the past, even if it only happened once in the distant past, regardless of whether you plan to in the future.

"Do you eat Hamburgers?" asks if you generally eat hamburgers, perhaps as an ongoing activity.

"Will you eat a hamburger?" asks if you plan to eat a hamburger in the future. Sometimes the speaker really wants to know "Will you eat a hamburger soon, before the next time you finish a meal?"; other times the speaker wants to know if you have chosen to never eat hamburgers again for the rest of your life -- you'll have to figure it out from the context.