I have a math problem for you: 

●     I am 36 years old. My half brother is 4 years younger than me. How old is my half brother?  

●     My step father is 33 years older than my half brother. How old is my step father?  

●     My half sister is 30 years younger than my step father. How old is my half sister?  

●     My mother is 19 years older than my half sister. How old is my mother ?

●    My dog is 27 years younger than me. How old is my dog?

Can you find the answer?

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