No it is redundant. The comparative and superlative of "safe" are "safer" and "safest". The "most" is unneccesary. You would write or say simply "the safest".
That is the correct spelling of the adjective "safest" (most safe or secure).
Yes, it is grammatically correct.
Yes, Almighty God is grammatically correct.
"That was wrong" is a grammatically correct sentence.
correct. but one religon seems to have the most terrorists.
No, "most friendly" is not grammatically correct. The correct form would be "friendliest" when comparing three or more things.
Yes, the sentence "He is their most targeted receiver" is grammatically correct. It means that he is the receiver who gets the most passes thrown to him by his team.
That is the correct spelling of the adjective "safest" (most safe or secure).
No. It is my favorite place is the correct spelling. Most is implied in favorite.
No, it is not. It would be either most sweet, or sweetest.
"Not like that" can be grammatically correct, depending on the context.
The phrase "Is you don't miss me do you" is not grammatically correct. It should be rephrased to something like "Don't you miss me?" to be correct.
Yes! That is grammatically correct!
Yes, 'for free', is grammatically correct.
The phrase "You are not knowing" is not grammatically correct. Instead, you can use "You do not know" or "You are not aware."
"That was wrong" is a grammatically correct sentence.
Yes, it is grammatically correct.