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?
More Logic Riddles
More Riddles and Answers
Center of Gravity
I am the center of gravity hold a capital situation in Vienna and as I am foremost in every victory am allowed by all to be invaluable. Though I am invisible I am clearly seen in the midst of a river. I could name three who are in love with me and have three associates in vice. It is vain that you seek me for I have long been in heaven yet even now lie embalmed in the grave. What am I?
Which word is the odd one out:First Second Third Forth Fifth Sixth Seventh Eighth
Logic - Math - Miscellaneous - What Am I - Words