What is 2+2 I am very confused

The answer is 4, it's just 2+2=4, for example I have two apples, you have two apples also. How many apples do we have in total? (2+2=4)

In base-3 numbers, 2 + 2 = 11.

In base-4 numbers, 2 + 2 = 10.

In any base larger than 4, including

our familiar every-day decimal system, 2 + 2 = 4.

I can't imagine why you would really need to post this question

and look for answers on the internet. Perhaps, as you have said,

you are just very confused.