Here are some of the hard puzzles:
- 68. 8 BBs look alike but one is slightly heavier than the
others. How can you identify the heavy BB in only two
weighings on a balance scale?
- 69. A man has an office north of his home and a factory south
of his home. Every day he goes to the train platform at
completely random, different times. There is a train
going north, stopping on one side of the platform, every
ten minutes. There is a train going south, stopping on
the other side of the same platform, every ten minutes.
He always takes the first train that comes along after
his arrival on the platform. Nine days out of ten he
goes to his office. Why?
- 70. A man leaves home, makes three left turns and comes home
to find two masked men there. What is this all about?
Riddles 71-100 have been temporarily taken down. We encourage you to EMAIL YOUR ANSWERS to riddles 68, 69, and 70 to
firstname.lastname@example.org There are potential prizes and guaranteed good karma for those with the three correct answers. Good luck!
Click here to learn how to get the answers.
© 2002-2003 Benjamin Kovler