Put your brain to test...
A girl went to school and the teacher asked how old are u? She replied I don't know bt I know that I'm half my mother's age. D teacher asked OK how old is ur mother? She said I don't know but I know dat my dad is 5 yrs older than my mother. D teacher, den how old is ur dad? She said I don't know but I know dat if we add our ages all d answer is 100 yrs.
How old is d girl, her mum, & her dad?