Explanation: ...square meal...

1) I'd say a square meal is a good and complete meal, including all the ingredients that are good for the body/health

2) I don't know (apart from three square meals). Any context?

Yes, Pieanne, it means 3 full meals a day. I think it is an AmE expression rather than BrE, although I have heard it used here.

Thanks Abbie and Anne.

Dear Anne,

Does my questions seem silly? I have seen other posts and some of them had asked good questions and I'm afraid my questions are not very standard.

Eg. Asking questions based on new words from one's thread,etc.

I think I'm not doing anything wrong. Just I even want to learn from other's posts.

No problem Praveen

Glad to hear it from you, Abbie.

Your questions are NOT silly AT ALL, Praveen...
NO question is ever silly, if you need the answer!
ALL questions are GOOD, as long as the answer is important to you, in my opinion.
If I ever let you think the contrary, then shame on me...

Thanks Anne.

Some more questions!

Can we substitute the word 'contrary'(In your ultimate sentence) with the following ones:
1)...think ON the contrary...
2)...think the OTHERWISE...
3)...think the OTHERWAY...

"On the contrary, I think ...." would be the expression in this case

Praveen, sorry but I have to log off now. i'll get back to your question tomorrow morning (MY morning), OK?
See you tomorrow.