Suppose you want to send in the mail a valuable object to a friend. You have a box which is big enough to hold the object. The box has a locking ring which is large enough to have a lock attached and you have several locks with keys. However, your friend does not have the key to any lock that you have. You cannot send the key in an unlocked box since it may be stolen or copied. How do you send the valuable object, locked, to your friend - so it may be opened by your friend?
Answer: Send the box with a lock attached and locked. Your friend attaches his or her own lock and sends the box back to you. You remove your lock and send it back to your friend. Your friend may then remove the lock she or he put on and open the box.
Question: 2 sons and 2 dads go fishing, at the end of the day they catch 3 fish and ea. eat's only 1. the fish are not divided or cut in any way, they ea. eat a whole fish. How?
Answer: there's a grandfather, a dad, and a boy.
The grandfather is the father of the dad and the dad is the father of the boy. the dad is the son of the grandfather and the boy is the son of the dad.
Question: Last weekend,Derek and Joey were camping,and around midnight,while they were having s'mores,Joey bet Derek that in exactly 1 week it eould not be sunny. Joey knows that he will win the bet. How does he know?
Answer: In exactly 1 week it will also be midnight and the sun will not be shining!
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