Friday Riddle
RIDDLE: You are standing in front of a room with one lightbulb inside of it. You cannot see if it is on or off. Outside the room there are 3 switches in the off positions. You may turn the switches any way you want to. You stop turning the switches, enter the room and know which switch controls the lightbulb. How?
Comments
-
I've seen the light
I can't quite figure out which switch to twitch but I'd guess you can tell by the temperature of the bulb somehow.
Maybe turn switch 1 and 2 on, leave #3 off.
Wait a minute or two then turn switch #2 off.
Go in the room and see if the light is on. If it is then it's switch #1, if not see how hot it is. If it's warm it's #2, if it's cold then it's #3 since it would not have been turned on.
Sort of like that magic trick where you have everyone examine a penny, then put in into a hat and pull out the "right" one because it's warmer than the others/0 -
I'd have a flashlightPhillieG said:I've seen the light
I can't quite figure out which switch to twitch but I'd guess you can tell by the temperature of the bulb somehow.
Maybe turn switch 1 and 2 on, leave #3 off.
Wait a minute or two then turn switch #2 off.
Go in the room and see if the light is on. If it is then it's switch #1, if not see how hot it is. If it's warm it's #2, if it's cold then it's #3 since it would not have been turned on.
Sort of like that magic trick where you have everyone examine a penny, then put in into a hat and pull out the "right" one because it's warmer than the others/
The heck with trying to turn on the light. Id bring a flashlight0 -
becausejust4Brooks said:I'd have a flashlight
The heck with trying to turn on the light. Id bring a flashlight
because your other itmes that the other switches control are on. You just know!0 -
Yes, you have.PhillieG said:I've seen the light
I can't quite figure out which switch to twitch but I'd guess you can tell by the temperature of the bulb somehow.
Maybe turn switch 1 and 2 on, leave #3 off.
Wait a minute or two then turn switch #2 off.
Go in the room and see if the light is on. If it is then it's switch #1, if not see how hot it is. If it's warm it's #2, if it's cold then it's #3 since it would not have been turned on.
Sort of like that magic trick where you have everyone examine a penny, then put in into a hat and pull out the "right" one because it's warmer than the others/
Very clever solution, Phil.
--Greg0
Discussion Boards
- All Discussion Boards
- 6 CSN Information
- 6 Welcome to CSN
- 121.8K Cancer specific
- 2.8K Anal Cancer
- 446 Bladder Cancer
- 309 Bone Cancers
- 1.6K Brain Cancer
- 28.5K Breast Cancer
- 396 Childhood Cancers
- 27.9K Colorectal Cancer
- 4.6K Esophageal Cancer
- 1.2K Gynecological Cancers (other than ovarian and uterine)
- 13K Head and Neck Cancer
- 6.3K Kidney Cancer
- 670 Leukemia
- 792 Liver Cancer
- 4.1K Lung Cancer
- 5.1K Lymphoma (Hodgkin and Non-Hodgkin)
- 237 Multiple Myeloma
- 7.1K Ovarian Cancer
- 61 Pancreatic Cancer
- 487 Peritoneal Cancer
- 5.5K Prostate Cancer
- 1.2K Rare and Other Cancers
- 538 Sarcoma
- 730 Skin Cancer
- 653 Stomach Cancer
- 191 Testicular Cancer
- 1.5K Thyroid Cancer
- 5.8K Uterine/Endometrial Cancer
- 6.3K Lifestyle Discussion Boards