You encounter such questions very often. some instances are--------
When you are standing outside a temple with prasadam," seems like you've come to the temple?"
Some unexpected guest turns up on a sunday when you are at the dining table eating "seems like you are having breakfast?"
At the bustop" are you waiting for bus?"
And more frequently than this you hear certain phrases like these.
Funny joke- Jokes are supposed to be funny!, then why mention?
My old grandfather (in some novels)-Oh c'mon he's old and thats why he is grandfather.
Wooden doors - Iv never seen a copper door, steel door or an alluminium door.
Eating food- Have you heard anybody eating anything other than food?
Im sure you\'ve encountered more examples these---- Actually the problem is ,these questions or phrases have a default answer of its own. The answer to this is simply so obvious. Thats the reason the listener feels irritating when such questions are posed. The next time you hear such questions simply say " YOU KNOW THE ANSWER YOURSELF".