Moving Quarters Riddle
If you have two quarters on a table touching each other, how can you move one of the quarters without touching it? You are only allowed to touch one quarter but not move it. You can't touch the quarter that you move. You want to get at least enough room between the two quarters to insert another coin between the two quarters.
Hint:
Hold down one of the quarters very firmly. Take another coin and hit it against the quarter you are holding down. Tap hard enough to move the quarter next to it aside. Did you answer this riddle correctly?
YES NO
YES NO
A Lucrece Knife Riddle
"I may command where I adore;
But silence, like a Lucrece knife,
With bloodless stroke my heart doth gore:
M, O, A, I, doth sway my life."
This riddle is dropped in the way of whom, as part of a trap?
But silence, like a Lucrece knife,
With bloodless stroke my heart doth gore:
M, O, A, I, doth sway my life."
This riddle is dropped in the way of whom, as part of a trap?
Hint:
The Twelfth Night Riddle
Hint:
A Suitor To Portia Riddle
The casket scene in "The Merchant of Venice" contains several riddles. Which of these nobles was NOT a suitor to Portia? This odd-man-out noble might easily be confused with the contender who chose 'Who chooseth me shall gain what many men desire.'
Hint:
Adriano De Armado's Servant Riddle
Moth, Adriano de Armado's servant in "Loves Labours Lost", riddles with his foolish master. He will carry the message:
"ADRIANO DE ARMADO: The way is but short: away!
MOTH: As swift as ____, sir."
What is missing?
"ADRIANO DE ARMADO: The way is but short: away!
MOTH: As swift as ____, sir."
What is missing?
Hint:
Rebus Riddle
Hint:
What Kind Of Clover Riddle
I am a small type of clover If you see me, don't move over. The amount of leaves I have is four. The best luck comes to those with more. What is it?
Hint:
All Around Riddle
Hint:
No Labor Day Riddles
Hint:
Round And Round Riddle
Hint:
Good Friday Riddle
You would have seen three of these
On the Calvary hillside
One of which carried Jesus
On Good Friday when he died
What was it?
On the Calvary hillside
One of which carried Jesus
On Good Friday when he died
What was it?
Hint:
Around The Yard Riddle
Hint:
Under The Cup Riddle
You decide to play a game with your friend where your friend places a coin under one of three cups. Your friend would then switch the positions of two of the cups several times so that the coin under one of the cups moves with the cup it is under. You would then select the cup that you think the coin is under. If you won, you would receive the coin, but if you lost, you would have to pay.
As the game starts, you realise that you are really tired, and you don't focus very well on the moving of the cups. When your friend stops moving the cups and asks you where the coin is, you only remember a few things:
He put the coin in the rightmost cup at the start.
He switched two of the cups 3 times.
The first time he switched two of the cups, the rightmost one was switched with another.
The second time he switched two of the cups, the rightmost one was not touched.
The third and last time he switched two of the cups, the rightmost one was switched with another.
You don't want to end up paying your friend, so, using your head, you try to work out which cup is most likely to hold the coin, using the information you remember.
Which cup is most likely to hold the coin?
As the game starts, you realise that you are really tired, and you don't focus very well on the moving of the cups. When your friend stops moving the cups and asks you where the coin is, you only remember a few things:
He put the coin in the rightmost cup at the start.
He switched two of the cups 3 times.
The first time he switched two of the cups, the rightmost one was switched with another.
The second time he switched two of the cups, the rightmost one was not touched.
The third and last time he switched two of the cups, the rightmost one was switched with another.
You don't want to end up paying your friend, so, using your head, you try to work out which cup is most likely to hold the coin, using the information you remember.
Which cup is most likely to hold the coin?
Hint: Write down the possibilities. Remember that there are only three cups, so if the rightmost cup wasn't touched...
The rightmost cup.
The rightmost cup has a half chance of holding the coin, and the other cups have a quarter chance.
Pretend that Os represent cups, and Q represents the cup with the coin.
The game starts like this:
OOQ
Then your friend switches the rightmost cup with another, giving two possibilities, with equal chance:
OQO
QOO
Your friend then moves the cups again, but doesn't touch the rightmost cup. The only switch possible is with the leftmost cup and the middle cup. This gives two possibilities with equal chance:
QOO
OQO
Lastly, your friend switches the rightmost cup with another cup. If the first possibility shown above was true, there would be two possibilities, with equal chance:
OOQ
QOO
If the second possibility shown above (In the second switch) was true, there would be two possibilities with equal chance:
OOQ
OQO
This means there are four possibilities altogether, with equal chance:
OOQ
QOO
OOQ
OQO
This means each possibility equals to a quarter chance, and because there are two possibilities with the rightmost cup having the coin, there is a half chance that the coin is there. Did you answer this riddle correctly?
YES NO
The rightmost cup has a half chance of holding the coin, and the other cups have a quarter chance.
Pretend that Os represent cups, and Q represents the cup with the coin.
The game starts like this:
OOQ
Then your friend switches the rightmost cup with another, giving two possibilities, with equal chance:
OQO
QOO
Your friend then moves the cups again, but doesn't touch the rightmost cup. The only switch possible is with the leftmost cup and the middle cup. This gives two possibilities with equal chance:
QOO
OQO
Lastly, your friend switches the rightmost cup with another cup. If the first possibility shown above was true, there would be two possibilities, with equal chance:
OOQ
QOO
If the second possibility shown above (In the second switch) was true, there would be two possibilities with equal chance:
OOQ
OQO
This means there are four possibilities altogether, with equal chance:
OOQ
QOO
OOQ
OQO
This means each possibility equals to a quarter chance, and because there are two possibilities with the rightmost cup having the coin, there is a half chance that the coin is there. Did you answer this riddle correctly?
YES NO
Three Rats Riddle
Three rats are sitting at the three corners of an equilateral triangle. Each rat starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the rats collide?
Hint:
So lets think this through. The rats can only avoid a collision if they all decide to move in the same direction (either clockwise or rati-clockwise). If the rats do not pick the same direction, there will definitely be a collision. Each rat has the option to either move clockwise or rati-clockwise. There is a one in two chance that an rat decides to pick a particular direction. Using simple probability calculations, we can determine the probability of no collision. Did you answer this riddle correctly?
YES NO
YES NO
Fast Heat Riddle
Hint:
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