House Number 


My house has a number.

(1) If my house number is a multiple of 3, then it is a number from 50 through 59. 
(2) If my house number is not a multiple of 4, then it is a number from 60 through 69. 
(3) If my house number is not a multiple of 6, then it is a number from 70 through 79.”

What is my house number?

Source: The Great Book of PUZZLES & TEASERS

See our previous ‘Puzzles of the Day’: 

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