I was in a dilemma when to use " " (double quotes) and ' ' (single quotes) in a sentence.
Can anyone here please let me know when to use these quotes exactly in a sentence. Am assuming that these both are the same in a sentence.
When you're in a dilemma, it's best to consult a usage guide. One of my favorites is the Purdue Online Writing Lab (a.k.a. the Purdue OWL); the OWL has an entire section devoted to using quotation marks.
These style guides often talk about "tricky" instances, such as:
If I’m making a song title possessive and the song title is plural, what would I do?
(see Q-and-A here)
Not all style guides make the exact same recommendations, and variations also occur between British and American English – one of which is discussed in both Oxford and in the answer by ARYF on this question, when ARYF said, " ‘He is a "good" man’."
As a footnote, a quote within a quote within a quote is discussed here. It's messy, but I couldn't resist.