# Thread: Brain Teasers............... 10 points for the best?

1. YahooHoo
Join Date
Mar 2008
Posts
3

## Brain Teasers............... 10 points for the best?

Sinbad the sailor is known to have travelled around the world seven times. During which round (which time) of travel did he die of a mysterious disease?

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There are 7999 card castles made every year around the world. each castle is of 15 storeys. each card castle is made up of 1853 cards. every card is either an ace or an heart but not a diamond nor a spade. every storey of the card castle requires 100 cards which reduces by 6 for every floor made up. my question that will not be to you is not that how many cards are there in a pack but is what is the probability that u get to make sixteenth floor of the castle?

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if a train travels at 340 miles per hour and a man is travelling in the opposite direction outside the train at 10 kms per hour at what speed are the passengers travelling

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2. Entry Level Fresher
Join Date
Aug 2009
Posts
15
1st: sinbad died during 8th trip
2nd: probability=0 because 15th floor was made by 4 cards and 16th would be made by 4-6=-2(not possible)
3rdassengers at 544 kmph(fastest train ?)

3. Entry Level Fresher
Join Date
Jul 2013
Posts
1

the passengers are just sitting

4. Entry Level Fresher
Join Date
Jul 2013
Posts
2
Passengers supposed to travel at 340 Miles Per Hour as well.

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5. Entry Level Fresher
Join Date
Jul 2013
Posts
11
1st - 8th trip

3rd - passengers are not traveling