What is 1 + 1?

Apa ini??? What's this???

if you take 1 + 1 = 2. Right??


So now if,
2 + 2 = 4;
2 x 2 = 4;
3 + 3 = 6 then
3 x 3 = ?

6 ma....wakakakaka...*LAME*

Here's an IQ question for people out there?
In which scenario is

a) 1 + 1 = 10?
b) 1 + 1 = 11?

Try your best. It's all logical explanation