A geometry teacher used the example “assassinating President Barack Obama” as a way to teach angles to his geometry students. He was teaching the students about parallel lines and angles and used the example of where to stand and aim if shooting Obama. He said:
Authorities were called and the high school math teacher was questioned by the Secret Service, but was later let go as he didn’t pose a threat.
My friend just finished a job interview and was asked the following question that I thought I’d share with you (it’s a somewhat common puzzle):
You are given 8 balls, 7 of which are the same weight and 1 which is heavier than the rest. Using a balance, what is the minimum number of weightings required to determine which ball is the heavier one?