1. How are you doing?

2. How are you feeling?
3. How is it going?
4. How are you?
5. How do you feel?
6. How are you today?

- I feel delighted.
- I feel happy.
- I feel satisfied.
--------------------------------
Are the questions all the same? Can we answer as in the above?

Yes, they all mean much the same thing, and they can be answered with any of the three possible responses. One might also say, "I feel terrible!" :)

Yes, the questions are all fairly standard ways to greet other people.

The replies are usually one or two words --
Oh, fine
Okay
Just fine
Doing well
(And others)

Yes, the questions are all similar in nature and have similar meanings. Therefore, you can answer them in the same way, such as saying "I feel delighted," "I feel happy," or "I feel satisfied."

1. The first question, "How are you doing?", is a casual way of asking how someone is feeling or how their day is going. You can answer this question by expressing your current emotional state or providing an update on how your day has been going.

2. Similarly, the second question, "How are you feeling?", also inquires about your emotional state. You can answer this by describing your current feelings or emotions.

3. The third question, "How is it going?", is another way of asking how things are going for you. This question can be answered by providing an update on your overall well-being or sharing any significant events or experiences.

4. The fourth question, "How are you?", is a general inquiry about your well-being. You can respond by sharing how you are feeling or giving a brief update on how things are going for you.

5. The fifth question, "How do you feel?", is similar to the previous questions, asking about your emotional state. You can answer by expressing your feelings or emotions at the moment.

6. The last question, "How are you today?", is specifically referencing your current state on that particular day. You can respond by describing how you are feeling on that day or providing an update on your overall well-being.

In all these cases, you can provide specific emotions such as feeling delighted, happy, or satisfied, or you can provide a general overview of your well-being and how your day is going.