As a non-native speaker there are hell of a lot of things that I find strange in the English language. For starters I'll write a few and if the thread gets any attention I'll write more.
Why does fat and slim chance mean the same thing?
The fact that there is not a unique plural form of you it's confusing and it makes some people use you guys as that plural form of you.
Blame it all on those Englanders who couldn't defend their lands!
They began with the ancient Celt language. Then the Germanic people invaded England and the language was heavily influenced by them. Then the Romans invaded England and the language picked up a lot of Latin influence. Then the Vikings invaded England and the language picked up more influences from them. And finally the French invaded and the language added a crap-ton of French words.
Like is that season of the year called "Fall" or "Autumn"? Take your pick whether you prefer the German word or the French word? It's all English now.