Not really. Bemused means to find something to smile about. She was bemused by the dog trying and trying but failing to reach the turkey on the counter. Befuddled means having trouble figuring out something. He was befuddled with some words on the day's crossword puzzle.
Yes- but I am not sure about the hyphen- I would leave it out. I might put quotes around at sea to make sure readers know that I am using a figure of speech. Actually, I do not use the phrase, but I have seen it used and puzzled or befuddled is what it means.
Yes they mean the same thing.
Yes they mean the same thing.
Yes, they mean the same thing.
Yes, they can mean the same thing.
No, they are not the same thing. Mean and average are the same thing.
Shabby and different do not mean the same thing.
These two words can mean the same thing.
It can mean the same thing if you use it right:It's a solid source.It's a dependable source.They SOMETIMES can mean the same thing.
yes grain mean the same thing as particale
Yes, sanctuary and refuge mean the same thing.
Loyal and faithful mean essentially the same thing.