This is not an idiom - it means exactly what it says. You should stay fit and healthy.
I think it means that that person agrees with that others persons idiom and that it fit that question that the teacher or whoever asked that question.
Stay calm
no it's not it's an idiom
"Keep your hair on" could refer to the Old West, when Indians might scalp you if you were not watchful. I've never heard it said as "keep your hair on" though.I suppose the idiom 'keep your hair on' means that if when a person is stressed the likelyhood that you could lose your hair or even pull it out hence keep it on and keep yourself calmThis may be a mixed idiom - more common is "keep your hat on" which is also means keep calm and don't "blow your top"."Keep your hair on" is advice telling someone to keep calm and not to over-react or get angry.
It is not an idiom, it means your nose is itching.
I think it means that that person agrees with that others persons idiom and that it fit that question that the teacher or whoever asked that question.
Stay calm
To keep struggling and not give up.
it means that
Keep bothering someone.
If your head is "in the clouds," you're a dreamer.
That's not an idiom. It means just what it looks like -- something is fit for you to eat.
It means " keep calm, don't get worked up"
Keep an idea in ones head to act on it later.
This is not an idiom. When you compare two things by saying one is the other, it is a metaphor. It means that however you keep your house reflects your personality, and vice versa.
There isn't an idiom called "eggs basket." Perhaps you are thinking of the old proverb that says "don't keep your eggs in one basket."
It means to be on the lookout for a street by the name of Connecticut.