A CITY WITH ONE EYE AND A VERY BIG CLOCK WIN IN IT FIVE TIMES TO MAKE RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

Yes!

A sample strategy:
Divide the deck in half and turn over all lower 50 cards, setting aside the highest number you find. Then turn over the other 50 cards, one by one, until you reach a number that is higher than the card you set aside: this is your chosen "high card."

Now, there is a 50% chance that the highest card is contained in the top 50 cards (it is or it isn't), and a 50% chance that the second-highest card is contained in the lower 50. Combining the probabilities, you have a 25% chance of constructing the above situation (in which you win every time).

This means that you'll lose three out of four games, but for every four games played, you pay $40 while you win one game and $50. Your net profit every four games is $10.

Obviously, you have to have at least $40 to start in order to apply this strategy effectively. Did you answer this riddle correctly?
YES  NO  

1/10

For a group of n friends, there are n! (n factorial) ways to draw the names out of the hat. Since a circle does not have a beginning and end, choose one person as the beginning and end of the circle. There are now (n-1)! ways to distribute the remaining people around the circle. Thus the probability of forming a single circle is

(n-1)! / n!

Since n! = (n-1)! * n (for n > 1), this can be rewritten as

(n-1)! / (n*(n-1)!)

Factoring out the (n-1)! from the numerator and denominator leaves

1/n

as the probability. Did you answer this riddle correctly?
YES  NO  

Once. Next time you would be subtracting 10 from 90. Did you answer this riddle correctly?
YES  NO  

The answer is to let your friend go first. This puzzle is based on an old game/scam called Penny Ante. No matter what you picked, your friend would be able to come up with a combination which would be more likely to beat yours. For example, if you were to choose HHH, then unless HHH was the first combination to come up you would eventually lose since as soon as a Tails came up, the combination THH would inevitably come up before HHH. The basic formula you can use for working out which combination you should choose is as follows. Simply take his combination (eg. HHT) take the last term in his combination, put it at the front (in this case making THH) and your combination will be more likely to come up first. Try it on your friends! Did you answer this riddle correctly?
YES  NO  

Memory Did you answer this riddle correctly?
YES  NO  

One in six. A die has no memory of what it last showed. Did you answer this riddle correctly?
YES  NO  

Memory Did you answer this riddle correctly?
YES  NO  

They are feet Did you answer this riddle correctly?
YES  NO  

Bones Did you answer this riddle correctly?
YES  NO  

There is no smoke with an electric train. Did you answer this riddle correctly?
YES  NO  

London Did you answer this riddle correctly?
YES  NO  

London Did you answer this riddle correctly?
YES  NO  

Four-ever! Did you answer this riddle correctly?
YES  NO  

School Bus Did you answer this riddle correctly?
YES  NO  

A school bus! Did you answer this riddle correctly?
YES  NO