I like a ramen. I like ramen.

I like a ramen. I like ramen.

I like a ramen. I like ramen.

you don't need to add "a" in front of "ramen".

I like a ramen. I like ramen.

I like a ramen, because it's very tasty and makes me happy. I like ramen because it's very tasty and makes me happy.

I like a ramen, because it is very tasty and make me happy. I like a ramen because it is very tasty and make me happy.

I like a ramen, because it is very tasty and makes me happy. I like a ramen, because it is very tasty and makes me happy.

I like a ramen, because it is very tasty and it makes me happy. I like ramen because it is very tasty and it makes me happy.

Verb tense and particles. You don't need a comma here. The sentence is one idea, not multiple.

I like a ramen, because it is very tasty and makes me happy. I like ramen because it is very tasty and makes me happy.

I think that this fooddish is one of perfect foodthe best dishes in thwe world. I think that this dish is one of the best dishes in the world.

"Food" works too, but "dish" is more accurate in this case.

I think that, this food is one of perfect food in thwe world. I think that, this food is one of perfect food in the world.

I think that this food is one of perfect food items in thwe world. I think that this food is one of perfect food items in the world.

I think that this food is one of the perfect foods in thwe world. I think this food is one of the perfect foods in the world.

Again, particle use. The sentence is technically correct this way, but it sounds weird. I would say, "I think ramen is one of the best foods in the world."

I think that this food is one of the most perfect foods in thwe world. I think that this food is one of the most perfect foods in the world.

I like "tonkotusu ramen". I like tonkotsu ramen.

I like "tonkoturamen". I like "tonkoturamen".

I like "tonkoturamen". I like "tonkoturamen".

add a period at the end of the sentence.

I like "tonkotusu ramen" I like "tonkotsu ramen"

wWhat ramen do you like? What ramen do you like?

wWhat ramen do you like? What ramen do you like?

wWhat kind of ramen do you like? What kind of ramen do you like?

Not technically wrong, just sounds weird.