A Lost Tennis BallScience brain teasers require understanding of the physical or biological world and the laws that govern it.
One day when I was playing lawn tennis in my back yard my tennis ball fell down a gopher hole. The hole was too deep to reach into and there was a bend in the middle so you couldn`t use a stick. How did I get the ball out without digging up my lawn?
HintIt was a tennis ball and tennis balls have air in them.
AnswerGet a hose and squirt water down the hole. The tennis ball will float to the top.
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