More Riddles and Puzzles

Question
If you have two hourglasses -- one four-minute timer and one seven-minute timer, how can you measure nine minutes?

Answer
Turn over both hourglasses at once. When the four-minute hourglass runs out, turn it over. When the seven-minute hourglass runs out, turn it over. When the four-minute timer runs out this time (eight minutes have elapsed), the seven-minute hourglass has been running for one minute. Now turn over the seven minute timer back over. When the timer runs out, nine minutes have elapsed.

Question
What asks no question but demands an answer?

Answer
A doorbell or a ringing telephone.

Question
Two boxers are in a boxing match (regular boxing, not kick boxing). The fight is scheduled for 12 rounds but ends after 6 rounds, after one boxer knocks out the other boxer. Yet no man throws a punch. How is this possible

Answer
They are female boxers.

Question
What is often returned but never borrowed?

Answer
Thank You

Question
A light-tight wooden box has three switches on the outside that control three light bulbs on the inside. When the box is closed you can turn the switches on or off but when you open the box how can you tell which switch controls each bulb without touching the switches?

Answer
Turn one switch on for five minutes, then turn it off and turn on another switch before you open the box. One bulb will be lit, one will be warm, and the unswitched one cool