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Suppose you want to send in the mail a valuable object to a friend. You have a box which is big enough to hold the object. The box has a locking ring which is large enough to have a lock attached and you have several locks with keys. However, your friend does not have the key to any lock that you have. You cannot send the key in an unlocked box since it may be stolen or copied. How do you send the valuable object, locked, to your friend – so it may be opened by your friend?
Answer: Send the box with a lock attached and locked. Your friend attaches his or her own lock and sends the box back to you. You remove your lock and send it back to your friend. Your friend may then remove the lock she or he put on and open the box.
Solution:
There were 4 Pears in the basket and 4 people in the room. Each person took one pear and at the end there was still one pear left in the basket. how is it possible?
Answer: The last person took a pear with the basket.
Solution:
Question: There were 4 Pears in the basket and 4 people in the room. Each person took one pear and at the end there was still one pear left in the basket. how is it possible?
Show Answer
Ans: The last person took a pear with the basket.
Also read : 100 coins on table puzzle
Question: There were 4 Pears in the basket and 4 people in the room. Each person took one pear and at the end there was still one pear left in the basket. how is it possible?
Show Answer
Ans: The last person took a pear with the basket.
Also read : 100 coins on table puzzle
If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?
Answer: Push the cork into the bottle and shake the coin out!
Solution:
How long the scooter Tyre run?
Answer: 7.5 KM
Solution:
First run 2.5 km and change the 1st tyre with stepney. Now kms remains in 1st Tyre: 2.5 km, 2nd tyre: 2.5 km, Stepney : 5 km
Again run for 2.5 km and this time change 2nd tyre with 1st tyre: Now kms remains 1st tyre: 2.5 km, 2nd tyre :0 km ,stepney : 2.5 km.
Now run 2.5 km with remaining 1st tyre and stepney .
Total: 2.5+2.5+2.5=7.5
First run 2.5 km and change the 1st tyre with stepney. Now kms remains in 1st Tyre: 2.5 km, 2nd tyre: 2.5 km, Stepney : 5 km
Again run for 2.5 km and this time change 2nd tyre with 1st tyre: Now kms remains 1st tyre: 2.5 km, 2nd tyre :0 km ,stepney : 2.5 km.
Now run 2.5 km with remaining 1st tyre and stepney .
Total: 2.5+2.5+2.5=7.5