jealous vs envious Please explain the connotation and difference between jealous and envious. Are they interchangeable?

which, in which and where 1.This is the house which I was born in. 2.This is the house in which I was born. 3. This is the house where I was born. Would you tell me the difference? Is #3 the most natural English? Are #2and#3 also used often?

When is 12:00 PM? I want to make sure that 12:00 PM is noon, because it means midnight in Japanese. Is it commonly used without confusion?

housewife, homemaker and stay at home mom I've heard that "stay at home mom" is commonly used, and "housewife" and "homemaker" are old-fashioned. Is it true? "homemaker" sounds strange to me. It makes me imagine a constructor. Do you call "stay at home mom" to a mom having teenage children too? 　Would you tell me the nuance of these words?

Would you tell me the difference of these three sentences? He told me that the party was on Sunday. He told me that the party is on Sunday. He told me that the party will be on Sunday.

Would you tell me the difference of the following sentences? She told me that she was a student. She told me that she is a student.

Would you tell me the meaning of "It's all happening"? I saw a movie "Almost Famous" and I enjoyed it. Kate Hudson is very cute. One of her line impressed me. I'd like to know the meaning of "It's all happening"

Do you use the word "magnent"? I couldn't find it in a dictionary, but I think the meaning is the same with magnet. Is there a difference between them?

What's the difference? "Is there somebody who speaks English?" "Is there anybody who speaks English?"