The period between birth and death of a living thing,especially a human being is called 'life'.

Do - I,we,you,they, plural subject in simple present tense. Does - He,she,it,any name, singular subject in simple present tense.

Has is used with he,she,it,singular subject in present perfect tense and also to show present possession. Ex:- She has eaten. Ram has two pens. Have is used with I,we,you,they,plural subjects in present perfect tense and also to show present possession. Ex:- They have called her. We have a new watch. Had is used in past perfect tense and also to show past possession. Ex:- I had gone there. They had a car.

Where are you?

I am agree with you.

I think, it's a problem in the system. I am facing same problem, I speak right but I don't gain coins.

Hindu

Do/does is used in simple present tense. Do is used with I,we,you,they,more than one person or thing, plural subjects. Does is used with he,she,it,one person or thing, singular subject. Ex:- I do not eat it. He doesn't tell a lie. Did is used in simple past tense. Ex:- You did not go there. She didn't speak english.

Because anyone's name is not bad or good.So if we want the name of anyone then only should ask "what is your name?".

I'm Indian.