I have some bottles of those airplane size containers of Alcohol.

They are at least 10 years old.

Are they still drinkable? Or does it spoil?
I have such things like, gin, vodka, cognac, etc.

Does it matter if I opened them or not?
Does it spoil once opened? (and left open)

I also have some wine that I bought back in 1990.
Does wine expire?

Thanks