Riddle: Walking home one day, you take a short cut along the train tracks. The tracks cross a narrow bridge over a deep gorge. At the point you are 3/8 of the way across the bridge, you hear the train whistle somewhere behind you. You charge across the bridge, and jump off the track as the train is about to run you down. As it happens, if you had gone the other way, you would have reached safety just before being run over as well. If you can run ten miles per hour, how fast is the train moving?
Answer: The train is moving at 40 miles per hour. Imagine that a friend is walking with you. When the train whistle blows, you head away from the train, he heads toward it. When he reaches safety, you will be 6/8 (or 3/4)of the way across the bridge, and the train will have just reached the bridge. For the train to cross 4/4 of the bridge in the time you cross the remaining 1/4, the train must be moving four times your speed.
Riddle: Joe has ten coins totaling $1.19. From these coins, he cannot make exact change for a dollar, half-dollar, quarter, dime, or nickel.
What are the coins?
Answer: A half-dollar, a quarter, four dimes, and four pennies.
Riddle: If 10 bags of jelly beans and 6 licorice sticks cost $1, and 10 licorice sticks and 6 jelly bean bags cost 92 cents.
How much does one licorice stick cost?
Answer: 5 cents while Jelly bean bags cost 7 cents.
Riddle: A murder had been suspected but the police did not know how the man had been killed. There were no windows, doors, chairs or desks. There was only a puddle left on the floor. The man had been hung by a rope in the middle of the floor underneath him hanging was a puddle. How did the man reach the ceiling and why was there a puddle?
Answer: The man had waited on a large ice cube and when it melted it left a puddle and he hung himself.
Riddle: A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?