Oh I wasn't always resourceful, I made loads of mistakes in the early days. But being a carer for John for over a decade, you find you're on a constant learning curve, and I became very good at adopting the mantra "go with the flow", or murmuring replies to nonsensical questions, in different ways.
I also learnt it was a waste of time asking him things like "would you like your lunch now, or later?", because he didn't know what "lunch" or "later" meant. So I'd sit him on a chair in the kitchen and say, in my brightest Mary Poppins voice "look John, I'm making sandwiches for our lunch. I'm putting butter on the bread, and that's ham and that's cheese".
Sometimes he'd point to one or the other, and sometimes he'd say something quite random like "frogs are pink". Yep, you just go with the flow.