Brain Teasers
Pigeon
Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet. How far does the pigeon travel?
Answer
It takes 3 hours for the friends to meet; so the pigeon flies for 3 hours at 18 MPH=54 miles.Hide Answer
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Comments
nice one.. a little on the easy side, however
That was just a teaser about a fly and two trains re-worded to make even less sense...Carrier Pigeon? 
There's a legend that physicist von Neumann was given this problem and within seconds provided the correct answer. The person giving the problem said, "It's funny how most people use an infinite series when there is a much simpler way." Von Neumann responden, "There's a simpler way?"
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