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1)66 candles

I know the answer is 66 candles because if he has the same amount of candles as the same amount of age his parents will have to plus all the ages he will tern on his birthday to get the end result.

2)11 candles

I think I am correct because if it was less then 11 candles they would not have enough candles for the last birthday. I also know my rite because if the candles could last more than a year they bobble could last for 11 years