Super Easy : What is the value of the product?
25 x 17 x 4 x20
Easy Puzzle: Two years ago my age was a multiple of six. Last year, it was a multiple of five. I am less than fifty years old. How old am I now?
Somewhat Challenging: Find the value of the following:
100-98+96-94+92-90.....+8-6+4-2
Challenging: At Hudson High school, the first class starts at 8:26 AM and the fourth class ends at 11:26 AM. There are four minutes between classes and each class is the same length. How many minutes are there in one class period?
These puzzles are from the math olympiad contest problems.
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