One
When calculating the number of objects that are in pairs, the correct answer is one. For instance, if there are 11 pairs of socks and each pair has 2 pairs of shoes, then the result of adding 2 to 11 is 22. This is equal to 1 pair plus 1 sock. Similarly, adding 2 to 11 gives 22 pairs of shoes, which is 1 pair plus 1 shoe. In both instances, the result of 2 to 11 is 1 unit, even if the total of the items is greater than 1.
Now stop wasting our time with these riddles.
Listen up, you ridiculous riddle.
You want me to be "rude"?
Why do I have to add two and eleven to get one as the answer? Why can't I add them to get whatever I darn well please?
I don't know what world you live in where two and eleven can somehow equal one, but in the real world that's just impossible.
Go bother someone else, you weirdo!