wWhat is your name? What is your name?

mMy name is aAnhar. My name is Anhar.

Names should always be capitalised, as they are proper nouns (the names of specific people, places, or things).

my name is anhar my name is anhar

My name is Anhar.

iI am from yYemen. I am from Yemen.

The word "I" is always capitalised. Countries are also proper nouns, so should always be capitalised.

iI am from yYemen. I am from Yemen.

aAnhar mean rivers in eEnglish. Anhar mean rivers in English.

The names of languages should be capitalised. The first letter in a sentence should be capitalised.

aAnhar means rivers in eEnglish. Anhar means rivers in English.

For singular things (like your one name) we use "means" not "mean". This is part of subject-verb agreement.