No. If something is the best, or is the tallest, then it's the reached the highest ranking (if you will) in that regard. So saying that something is the most best makes no sense, as only 1 item can be the best.
correct. but one religon seems to have the most terrorists.
Yes, you can say that in correct English. One of the most cutest is grammatically correct.
The superlative degree of "lively" is "liveliest". This is equivalent to the alternative "most lively". Both are grammatically correct.
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".
Both are correct: "I agree with you" would be used most often, but "I do agree with you" could be used for emphasis.
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.
No. It is my favorite place is the correct spelling. Most is implied in favorite.
"have well and" can be a grammatically correct phrase only if the word "and" is followed by another adverb, with "well and truly" probably being the most common. In fact this phrase is so common that it is best avoided as a cliche.
No, "most catchiest" would be redundant. Catchiest already makes a thing the most or best. Use most only when you are not using a word that already implies most. It was the catchiest slogan the Republicans could offer. It was the most catchy line he could think of.
No, it is not. It would be either most sweet, or sweetest.
correct. but one religon seems to have the most terrorists.
Yes, "most preferable" is grammatically correct. It is a comparative form that indicates the highest level of preference in a given context.
The green moss was most slippery when it was wet.
Yes, you can say that in correct English. One of the most cutest is grammatically correct.
Yes.
In the NBA.