Best riddles

cleansimple

This is a piece of jewelry Most often worn by girls It's sometimes gold or silver And sometimes made of pearls What is it?
Necklace
80.00 %
41 votes
logictricky

If you had one match and entered a room in which there were a kerosene lamp, an oil burner, and a wood burning stove, which would you light first?
The match.
80.00 %
41 votes
simpletricky

There are a number of books on a shelf. If one book is the 6th from the left and 4th from the right, how many books are on the shelf?
There are 9 books on the shelf.
79.95 %
54 votes
logicsimpleclean

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?
Send the box with valuable object and 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. Search: Man-in-the-middle attack
79.95 %
54 votes