brainteaser: 30 people are 15 couples. they shake hands, but two people of the same couple don't shake hands with each other. now you know 29 people shake hands with different numbers of people (e.g. one person shakes hands with 4 others, another person shakes hands with 5 people, etc). question: how many people did the 30th person shake hands with?
You dip a cube into paint and pull it out. Then you cut it into a 27 sub-cubes and put them in a bag. If you randomly pick a sub-cube out the bag and roll it on the table, what is the probability that no paint is visible?
Suppose n people on the bus. At the first stop, 2/3 people get off and 7 get on At the second stop, 2/3 people get off and 7 get on Similarly, at the third stop, the same..Ignore the rest of bus stop find minimum people on the bus before first stop/initially?
You have 3000 apples, and 1 truck that can carry a maximum of 1000 apples. The truck also drops an apple for every mile it drives and the apple gets destroyed. Whats the maximum amount of apples you can take to a city 1000 miles away?
Do you smoke?
Option pricing question You have a deck of 97 cards and I will pay you $10 if I draw 4 cards and they are in ascending order (not necessarily consecutive order) and you pay me $1 if they are not. Would you play?
You have a call option on a security worth 100 now that will either be worth 110 or 95 dollars at a future date. The strike of this option is 105. What is an estimated value of this call option?
If you would ask all Americans a yes or no question, what would you ask to get the most of them wrong
I have one fair coin and one biased two headed coin, and I put both in my pocket. I randomly choose one coin and flip it. It shows heads. What is the probability that the coin has Tails on the other side?
If I roll a pair of dice, given I've rolled one six, what's the probability both dice are six?
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