An ant gets onto one end of a tight rope that is 1 meter long. The ant is traveling at 1 centimeter per second, but the entire rope is being stretched an extra 1 meter a second (it can be stretched forever).
Will the ant ever reach the other end of the rope?
Tom & Sally
Tom wants to send Sally an expensive ring through the mail because they live thousands of miles apart. The only problem is that everything sent through the mail is stolen unless there is a lock put on it. Both Tom and Sally have plenty of locks and keys but they don't have any of the same locks or keys.
How can Tom send Sally the ring without it getting stolen?
How can Tom send Sally the ring without it getting stolen?
Work under Pressure
Under pressure is the only way I work, and by myself is the only way I'm hurt. What am I?
Warden
The warden of a circular jail is extremely hyper one day so he begins running around opening cells. The jail has 100 cells numbered from 1 to 100. He runs in a circle and opens all of the cells. Next he runs around and closes every 2nd cell (starting with cell 2, 4, 6 , etc.). If a cell is open he closes it and if a cell is closed he opens it. When he finishes running by all 100 cells he opens/closes every 3rd cell (starting with 3, 6, 9, 12 etc.), then every 4th cell (starting with 4, 8, 12, etc.) and so on.
He does this until he goes around and only changes the 100th cell. When he is done what cells will be open?
He does this until he goes around and only changes the 100th cell. When he is done what cells will be open?
DETENTION
A teacher decides to give a pop quiz one day but all of her students refuse to take the quiz thinking that the teacher will call off the quiz. She can give only one of these students a detention for skipping the quiz. All of the students know each other's names and if a student knows he/she is getting a detention they take the quiz.
How can she threaten her students with the single detention so they all take the quiz?
How can she threaten her students with the single detention so they all take the quiz?
1 of the US
My first is often at the front door. My second is found in the cereal family. My third is what most people want. My whole is one of the United States. What am I?
Go through a fall
After you go through a fall I will take over. All life will stall, or at least grow slower. What am I?
COCO
You have two coconuts and you want to find out how high they can be dropped from a 100 story building before they break.
But you only have $1.40 and the elevator costs a dime each time you ride it up (it's free for rides down).
How can you drop the coconuts to guarantee you will find the lowest floor they will break at, while starting and ending at floor 1?
Note: They break when dropped from the same height and they don't weaken from getting dropped.
But you only have $1.40 and the elevator costs a dime each time you ride it up (it's free for rides down).
How can you drop the coconuts to guarantee you will find the lowest floor they will break at, while starting and ending at floor 1?
Note: They break when dropped from the same height and they don't weaken from getting dropped.
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