Is a question tag a question? 
You mean that’s NOT warts you have there?
If they are warts, is it a Lemmy costume or a witch costume?
Is there really a Lemmy costume?
Is it not Him, morning-side, when I look in the mirror?
Have I eaten stinky tofu before?
Where did that question come from?
Why did I double-post?
Why not?
Why do people smile at me, but secretly hate me?
Are you a mind-reader?
Should I cook bbq chicken, spaghetti, saussages, or spicy shrimp stir fry with rice?
Why not cook them all?
Can I eat them all?
Couldn’t you invite some friends?
Do I have friends in this small town who are up at 3 am?
Don’t you have to work tomorrow?
Doesn’t tomorrow never come?
Isn’t that incorrect grammatically?
What’s it to you, are you his teacher?