Does it sound different if I say "I'll ask you something" instead of "let me ask you something"?
Native speaker’s answer
Rebecca
Yes, "I'll ask you something" sounds awkward and unnatural. We usually use the expressions "let me/lemme ask you something" or "I want to/wanna ask you something" when we want to pose a question to someone. Ex: Let me ask you something. Did you lie about not eating the last slice of cake? Ex: Hi Ms. Watson, are you busy? I want to ask you something about our homework.