This is hard to explain but DH will ask me a question, and I give the information I have to hand that can be used to get to the answer but I don't work it out for him. This annoys him because 'Im not answering the question'. I feel I am! For context we have small kids and I am often already doing three things at once when the questions come in.
Examples
him - when do we need to leave to get to the party? me - it's a 40 minute drive and we need to get there at 10:30.
him - what time is the teddy bears picnic? me - it's on the calendar.
him - how many pieces of chicken is my share? me - I cooked 10 between 4 people.
him - do the children need sun hats? me - I checked the forecast earlier and it's going to be sunny all day.
Aibu to answer this way or would your partner answering like this annoy the crap out of you?