No – "freezing" is non-gradable and doesn’t work with “very.” A correct alternative would be “absolutely freezing.”

It follows the noun ("people") because it's in a predicative position – often used with certain adjectives and participles.

Yes – “quite” can be used with non-gradable adjectives like “amazing,” but the meaning depends on context – it can mean “completely” or “fairly.”

Non-gradable – it expresses an extreme state and doesn’t work with modifiers like “very,” but does with “absolutely.”

Great green dragons – opinion adjectives come before color adjectives.

No – "big" is a gradable adjective, and "absolutely" is used with non-gradable adjectives like "enormous" or "terrified."

No we can use an adjective with the insread of the noun here, but it canno be used with possesive 's

Yes it is correct, no need to change the version with and sounds worse.

Yes – "delicious" is considered non-gradable and in informal or emphatic speech, modifiers like "completely" are used for emphasis.

something cheap adjectives are used AFTER INDEFINITE pronouns.

An old wooden box – age (old) comes before material (wooden) in adjective order.

A nice red dress – opinion (nice) comes before color (red) in the correct adjective order.