Can soft drinks like Pina Colada, Irish Baileys or others also get you seriously drunk?

One of my friend claimed she got drunk from 4 cocktails of Margarita. Someone else claimed to have gotten drunk out of Pina Colada too and another from Irish Baileys.

They're innocent, soft and sweet drinks. So you can get seriously drunk from those soft, sweet ones too?

Can soft drinks like Pina Colada, Irish Baileys or others also get you seriously drunk?
Post Opinion