math skills

IF THERESA'S DAUGHTER IS MY DAUGHTER'S MOTHER, WHAT AM I TO THERESA?

Only 3% of American population can solve this!

this is mind boggling!!! this is such a SIMPLE question!!!!! Yesterday I was calling help desk online and they could do a very simple math calculation... It said: every 2 units is worth 1 hour... but it didn't say how many CEUs that is. And the help desk was telling me that if I put 10 units I will get 10 CEUs and then that units and CEUs are the same thing, ... SHE HAD NO CLUE ABOUT MATH. NONE> ZERO. NADA> NOTHING. Amazing.