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Mr. Brown was killed on Sunday after noon. The wife said she was reading a book. The butler said He was taking a shower. The chef said he was making breakfast. The maid said she was folding clothes, and the gardener said he was planting tomatoes. Who did it?
Answer: The chef killed Mr. Brown because he said he was cooking breakfast but it was a Sunday afternoon.
Solution:
You want to send a valuable object to a friend. You have a box which is more than large enough to contain the object. You have several locks with keys. The box has a locking ring which is more than large enough to have a lock attached. But your friend does not have the key to any lock that you have. How do you do it? Note that you cannot send a key in an unlocked box, since it might be copied.
Answer: Attach a lock to the ring. Send it to her. She attaches her own lock and sends it back. You remove your lock and send it back to her. She removes her lock.
Solution:
A driver of a car wants to cover a total distance of 1000 KM. Apart from the 4 tires of the car, he has also in his disposal a spare tire. If he wants to use equally all the tires of the car, how much distance each tire should cover?
Answer: 800 KM
Solution:
Let Tire numbers be 1,2,3,4,5
1) Use Tire 1234 for 0-200 km
2) Use Tire 1235 for 2000-400 km
3) Use Tire 1254 for 4000-600 km
4) Use Tire 1534 for 6000-800 km
5) Use Tire 5234 for 8000-1,000 km
As you may have noticed, each Tire is used 4 times so total of 200×4 = 800 KM
As we can see each Tire gets to run 800 km
Correct answer: 800 KM
Let Tire numbers be 1,2,3,4,5
1) Use Tire 1234 for 0-200 km
2) Use Tire 1235 for 2000-400 km
3) Use Tire 1254 for 4000-600 km
4) Use Tire 1534 for 6000-800 km
5) Use Tire 5234 for 8000-1,000 km
As you may have noticed, each Tire is used 4 times so total of 200×4 = 800 KM
As we can see each Tire gets to run 800 km
Correct answer: 800 KM